substitute '@b NB:' with '@note'; first partial revision of e*h headers; replace @beginEventTable with @beginEventTable{1} which provides the prototype of the event handler
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52900 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
@@ -1,6 +1,6 @@
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/////////////////////////////////////////////////////////////////////////////
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// Name: event.h
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// Purpose: interface of wxKeyEvent
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// Purpose: interface of wx*Event classes
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// Author: wxWidgets team
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// RCS-ID: $Id$
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// Licence: wxWindows license
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@@ -23,9 +23,10 @@
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Both key events provide untranslated key codes while the char event carries
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the translated one. The untranslated code for alphanumeric keys is always
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an upper case value. For the other keys it is one of @c WXK_XXX values
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from the @ref overview_keycodes "keycodes table". The translated key is, in
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general, the character the user expects to appear as the result of the key
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combination when typing the text into a text entry zone, for example.
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from the @ref page_keycodes.
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The translated key is, in general, the character the user expects to appear
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as the result of the key combination when typing the text into a text entry
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zone, for example.
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A few examples to clarify this (all assume that CAPS LOCK is unpressed
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and the standard US keyboard): when the @c 'A' key is pressed, the key down
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@@ -37,33 +38,43 @@
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Although in this simple case it is clear that the correct key code could be
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found in the key down event handler by checking the value returned by
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wxKeyEvent::ShiftDown, in general you should use
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@c EVT_CHAR for this as for non-alphanumeric keys the translation is
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keyboard-layout dependent and can only be done properly by the system itself.
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wxKeyEvent::ShiftDown(), in general you should use @c EVT_CHAR for this as
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for non-alphanumeric keys the translation is keyboard-layout dependent and
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can only be done properly by the system itself.
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Another kind of translation is done when the control key is pressed: for
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example, for CTRL-A key press the key down event still carries the
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same key code @c 'a' as usual but the char event will have key code of
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1, the ASCII value of this key combination.
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same key code @c 'a' as usual but the char event will have key code of 1,
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the ASCII value of this key combination.
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You may discover how the other keys on your system behave interactively by
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running the text() wxWidgets sample and pressing some keys
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running the @ref page_samples_text wxWidgets sample and pressing some keys
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in any of the text controls shown in it.
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@b Note: If a key down (@c EVT_KEY_DOWN) event is caught and
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the event handler does not call @c event.Skip() then the corresponding
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char event (@c EVT_CHAR) will not happen. This is by design and
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enables the programs that handle both types of events to be a bit
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simpler.
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@b Note for Windows programmers: The key and char events in wxWidgets are
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similar to but slightly different from Windows @c WM_KEYDOWN and
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@c WM_CHAR events. In particular, Alt-x combination will generate a char
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event in wxWidgets (unless it is used as an accelerator).
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@b Tip: be sure to call @c event.Skip() for events that you don't process in
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key event function, otherwise menu shortcuts may cease to work under Windows.
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@note If a key down (@c EVT_KEY_DOWN) event is caught and the event handler
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does not call @c event.Skip() then the corresponding char event
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(@c EVT_CHAR) will not happen.
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This is by design and enables the programs that handle both types of
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events to be a bit simpler.
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@note For Windows programmers: The key and char events in wxWidgets are
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similar to but slightly different from Windows @c WM_KEYDOWN and
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@c WM_CHAR events. In particular, Alt-x combination will generate a
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char event in wxWidgets (unless it is used as an accelerator).
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@beginEventTable{wxKeyEvent}
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@event{EVT_KEY_DOWN(func)}:
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Process a wxEVT_KEY_DOWN event (any key has been pressed).
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@event{EVT_KEY_UP(func)}:
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Process a wxEVT_KEY_UP event (any key has been released).
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@event{EVT_CHAR(func)}:
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Process a wxEVT_CHAR event.
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@endEventTable
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@library{wxcore}
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@category{events}
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*/
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@@ -71,61 +82,70 @@ class wxKeyEvent : public wxEvent
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{
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public:
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/**
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Constructor. Currently, the only valid event types are wxEVT_CHAR and
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wxEVT_CHAR_HOOK.
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Constructor.
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Currently, the only valid event types are @c wxEVT_CHAR and @c wxEVT_CHAR_HOOK.
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*/
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wxKeyEvent(wxEventType keyEventType);
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wxKeyEvent(wxEventType keyEventType = wxEVT_NULL);
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/**
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Returns @true if the Alt key was down at the time of the key event.
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Notice that GetModifiers() is easier to use
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correctly than this function so you should consider using it in new code.
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Notice that GetModifiers() is easier to use correctly than this function
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so you should consider using it in new code.
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*/
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bool AltDown() const;
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/**
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CMD is a pseudo key which is the same as Control for PC and Unix
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platforms but the special APPLE (a.k.a as COMMAND) key under
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Macs: it makes often sense to use it instead of, say, ControlDown() because Cmd
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platforms but the special APPLE (a.k.a as COMMAND) key under Macs:
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it makes often sense to use it instead of, say, ControlDown() because Cmd
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key is used for the same thing under Mac as Ctrl elsewhere (but Ctrl still
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exists, just not used for this purpose under Mac). So for non-Mac platforms
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this is the same as ControlDown() and under
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Mac this is the same as MetaDown().
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this is the same as ControlDown() and under Mac this is the same as MetaDown().
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*/
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bool CmdDown() const;
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/**
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Returns @true if the control key was down at the time of the key event.
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Notice that GetModifiers() is easier to use
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correctly than this function so you should consider using it in new code.
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Notice that GetModifiers() is easier to use correctly than this function
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so you should consider using it in new code.
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*/
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bool ControlDown() const;
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/**
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Returns the virtual key code. ASCII events return normal ASCII values,
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while non-ASCII events return values such as @b WXK_LEFT for the
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left cursor key. See Keycodes() for a full list of
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the virtual key codes.
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while non-ASCII events return values such as @b WXK_LEFT for the left cursor
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key. See @ref page_keycodes for a full list of the virtual key codes.
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Note that in Unicode build, the returned value is meaningful only if the
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user entered a character that can be represented in current locale's default
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charset. You can obtain the corresponding Unicode character using
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GetUnicodeKey().
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charset. You can obtain the corresponding Unicode character using GetUnicodeKey().
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*/
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int GetKeyCode() const;
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/**
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Return the bitmask of modifier keys which were pressed when this event
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happened. See @ref overview_keymodifiers "key modifier constants" for the full
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list
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of modifiers.
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Notice that this function is easier to use correctly than, for example,
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ControlDown() because when using the latter you
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also have to remember to test that none of the other modifiers is pressed:
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happened. See @ref page_keymodifiers for the full list of modifiers.
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and forgetting to do it can result in serious program bugs (e.g. program not
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working with European keyboard layout where ALTGR key which is seen by
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the program as combination of CTRL and ALT is used). On the
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other hand, you can simply write
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Notice that this function is easier to use correctly than, for example,
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ControlDown() because when using the latter you also have to remember to
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test that none of the other modifiers is pressed:
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@code
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if ( ControlDown() && !AltDown() && !ShiftDown() && !MetaDown() )
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... handle Ctrl-XXX ...
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@endcode
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and forgetting to do it can result in serious program bugs (e.g. program
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not working with European keyboard layout where ALTGR key which is seen by
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the program as combination of CTRL and ALT is used). On the other hand,
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you can simply write:
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@code
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if ( GetModifiers() == wxMOD_CONTROL )
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... handle Ctrl-XXX ...
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@endcode
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with this function.
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*/
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@@ -136,27 +156,30 @@ public:
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Obtains the position (in client coordinates) at which the key was pressed.
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*/
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wxPoint GetPosition() const;
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const void GetPosition(long* x, long* y) const;
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void GetPosition(long* x, long* y) const;
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//@}
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/**
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Returns the raw key code for this event. This is a platform-dependent scan code
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which should only be used in advanced applications.
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@b NB: Currently the raw key codes are not supported by all ports, use
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@c #ifdef wxHAS_RAW_KEY_CODES to determine if this feature is available.
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@note Currently the raw key codes are not supported by all ports, use
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@ifdef_ wxHAS_RAW_KEY_CODES to determine if this feature is available.
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*/
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wxUint32 GetRawKeyCode() const;
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/**
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Returns the low level key flags for this event. The flags are
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platform-dependent and should only be used in advanced applications.
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@b NB: Currently the raw key flags are not supported by all ports, use
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@c #ifdef wxHAS_RAW_KEY_CODES to determine if this feature is available.
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@note Currently the raw key flags are not supported by all ports, use
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@ifdef_ wxHAS_RAW_KEY_CODES to determine if this feature is available.
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*/
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wxUint32 GetRawKeyFlags() const;
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/**
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Returns the Unicode character corresponding to this key event.
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This function is only available in Unicode build, i.e. when
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@c wxUSE_UNICODE is 1.
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*/
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@@ -168,86 +191,36 @@ public:
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wxCoord GetX() const;
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/**
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Returns the Y (in client coordinates) position of the event.
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Returns the Y position (in client coordinates) of the event.
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*/
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wxCoord GetY() const;
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/**
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Returns @true if either CTRL or ALT keys was down
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at the time of the key event. Note that this function does not take into
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account neither SHIFT nor META key states (the reason for ignoring
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the latter is that it is common for NUMLOCK key to be configured as
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META under X but the key presses even while NUMLOCK is on should
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be still processed normally).
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Returns @true if either CTRL or ALT keys was down at the time of the
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key event.
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Note that this function does not take into account neither SHIFT nor
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META key states (the reason for ignoring the latter is that it is
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common for NUMLOCK key to be configured as META under X but the key
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presses even while NUMLOCK is on should be still processed normally).
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*/
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bool HasModifiers() const;
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/**
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Returns @true if the Meta key was down at the time of the key event.
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Notice that GetModifiers() is easier to use
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correctly than this function so you should consider using it in new code.
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Notice that GetModifiers() is easier to use correctly than this function
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so you should consider using it in new code.
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*/
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bool MetaDown() const;
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/**
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Returns @true if the shift key was down at the time of the key event.
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Notice that GetModifiers() is easier to use
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correctly than this function so you should consider using it in new code.
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Notice that GetModifiers() is easier to use correctly than this function
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so you should consider using it in new code.
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*/
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bool ShiftDown() const;
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/**
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bool m_altDown
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@b Deprecated: Please use GetModifiers()
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instead!
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@true if the Alt key is pressed down.
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*/
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/**
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bool m_controlDown
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@b Deprecated: Please use GetModifiers()
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instead!
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@true if control is pressed down.
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*/
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/**
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long m_keyCode
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@b Deprecated: Please use GetKeyCode()
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instead!
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Virtual keycode. See Keycodes() for a list of identifiers.
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*/
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/**
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bool m_metaDown
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@b Deprecated: Please use GetModifiers()
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instead!
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@true if the Meta key is pressed down.
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*/
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/**
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bool m_shiftDown
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@b Deprecated: Please use GetModifiers()
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instead!
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@true if shift is pressed down.
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*/
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/**
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int m_x
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@b Deprecated: Please use GetX() instead!
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X position of the event.
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*/
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/**
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int m_y
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@b Deprecated: Please use GetY() instead!
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Y position of the event.
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*/
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};
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@@ -256,9 +229,22 @@ public:
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@class wxJoystickEvent
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@wxheader{event.h}
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This event class contains information about mouse events, particularly
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This event class contains information about joystick events, particularly
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events received by windows.
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@beginEventTable{wxJoystickEvent}
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@style{EVT_JOY_BUTTON_DOWN(func)}:
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Process a wxEVT_JOY_BUTTON_DOWN event.
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@style{EVT_JOY_BUTTON_UP(func)}:
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Process a wxEVT_JOY_BUTTON_UP event.
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@style{EVT_JOY_MOVE(func)}:
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Process a wxEVT_JOY_MOVE event.
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@style{EVT_JOY_ZMOVE(func)}:
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Process a wxEVT_JOY_ZMOVE event.
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@style{EVT_JOYSTICK_EVENTS(func)}:
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Processes all joystick events.
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@endEventTable
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@library{wxcore}
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@category{events}
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@@ -270,16 +256,16 @@ public:
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/**
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Constructor.
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*/
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wxJoystickEvent(wxEventType eventType = 0, int state = 0,
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wxJoystickEvent(wxEventType eventType = wxEVT_NULL, int state = 0,
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int joystick = wxJOYSTICK1,
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int change = 0);
|
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/**
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Returns @true if the event was a down event from the specified button (or any
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button).
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Returns @true if the event was a down event from the specified button
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(or any button).
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|
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@param button
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Can be wxJOY_BUTTONn where n is 1, 2, 3 or 4; or wxJOY_BUTTON_ANY to
|
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Can be @c wxJOY_BUTTONn where @c n is 1, 2, 3 or 4; or @c wxJOY_BUTTON_ANY to
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indicate any button down event.
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*/
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bool ButtonDown(int button = wxJOY_BUTTON_ANY) const;
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@@ -288,32 +274,32 @@ public:
|
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Returns @true if the specified button (or any button) was in a down state.
|
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|
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@param button
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Can be wxJOY_BUTTONn where n is 1, 2, 3 or 4; or wxJOY_BUTTON_ANY to
|
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Can be @c wxJOY_BUTTONn where @c n is 1, 2, 3 or 4; or @c wxJOY_BUTTON_ANY to
|
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indicate any button down event.
|
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*/
|
||||
bool ButtonIsDown(int button = wxJOY_BUTTON_ANY) const;
|
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|
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/**
|
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Returns @true if the event was an up event from the specified button (or any
|
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button).
|
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Returns @true if the event was an up event from the specified button
|
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(or any button).
|
||||
|
||||
@param button
|
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Can be wxJOY_BUTTONn where n is 1, 2, 3 or 4; or wxJOY_BUTTON_ANY to
|
||||
Can be @c wxJOY_BUTTONn where @c n is 1, 2, 3 or 4; or @c wxJOY_BUTTON_ANY to
|
||||
indicate any button down event.
|
||||
*/
|
||||
bool ButtonUp(int button = wxJOY_BUTTON_ANY) const;
|
||||
|
||||
/**
|
||||
Returns the identifier of the button changing state. This is a wxJOY_BUTTONn
|
||||
identifier, where
|
||||
n is one of 1, 2, 3, 4.
|
||||
Returns the identifier of the button changing state.
|
||||
|
||||
This is a @c wxJOY_BUTTONn identifier, where @c n is one of 1, 2, 3, 4.
|
||||
*/
|
||||
int GetButtonChange() const;
|
||||
|
||||
/**
|
||||
Returns the down state of the buttons. This is a bitlist of wxJOY_BUTTONn
|
||||
identifiers, where
|
||||
n is one of 1, 2, 3, 4.
|
||||
Returns the down state of the buttons.
|
||||
|
||||
This is a @c wxJOY_BUTTONn identifier, where @c n is one of 1, 2, 3, 4.
|
||||
*/
|
||||
int GetButtonState() const;
|
||||
|
||||
@@ -334,8 +320,8 @@ public:
|
||||
int GetZPosition() const;
|
||||
|
||||
/**
|
||||
Returns @true if this was a button up or down event (@e not 'is any button
|
||||
down?').
|
||||
Returns @true if this was a button up or down event
|
||||
(@e not 'is any button down?').
|
||||
*/
|
||||
bool IsButton() const;
|
||||
|
||||
@@ -358,10 +344,36 @@ public:
|
||||
|
||||
A scroll event holds information about events sent from scrolling windows.
|
||||
|
||||
|
||||
@beginEventTable{wxScrollWinEvent}
|
||||
You can use the EVT_SCROLLWIN* macros for intercepting scroll window events
|
||||
from the receiving window.
|
||||
@event{EVT_SCROLLWIN(func)}:
|
||||
Process all scroll events.
|
||||
@event{EVT_SCROLLWIN_TOP(func)}:
|
||||
Process wxEVT_SCROLLWIN_TOP scroll-to-top events.
|
||||
@event{EVT_SCROLLWIN_BOTTOM(func)}:
|
||||
Process wxEVT_SCROLLWIN_BOTTOM scroll-to-bottom events.
|
||||
@event{EVT_SCROLLWIN_LINEUP(func)}:
|
||||
Process wxEVT_SCROLLWIN_LINEUP line up events.
|
||||
@event{EVT_SCROLLWIN_LINEDOWN(func)}:
|
||||
Process wxEVT_SCROLLWIN_LINEDOWN line down events.
|
||||
@event{EVT_SCROLLWIN_PAGEUP(func)}:
|
||||
Process wxEVT_SCROLLWIN_PAGEUP page up events.
|
||||
@event{EVT_SCROLLWIN_PAGEDOWN(func)}:
|
||||
Process wxEVT_SCROLLWIN_PAGEDOWN page down events.
|
||||
@event{EVT_SCROLLWIN_THUMBTRACK(func)}:
|
||||
Process wxEVT_SCROLLWIN_THUMBTRACK thumbtrack events
|
||||
(frequent events sent as the user drags the thumbtrack).
|
||||
@event{EVT_SCROLLWIN_THUMBRELEASE(func)}:
|
||||
Process wxEVT_SCROLLWIN_THUMBRELEASE thumb release events.
|
||||
@endEventTable
|
||||
|
||||
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see wxScrollEvent, @ref overview_eventhandlingoverview
|
||||
@see wxScrollEvent, @ref overview_eventhandling
|
||||
*/
|
||||
class wxScrollWinEvent : public wxEvent
|
||||
{
|
||||
@@ -369,17 +381,20 @@ public:
|
||||
/**
|
||||
Constructor.
|
||||
*/
|
||||
wxScrollWinEvent(wxEventType commandType = 0, int pos = 0,
|
||||
wxScrollWinEvent(wxEventType commandType = wxEVT_NULL, int pos = 0,
|
||||
int orientation = 0);
|
||||
|
||||
/**
|
||||
Returns wxHORIZONTAL or wxVERTICAL, depending on the orientation of the
|
||||
scrollbar.
|
||||
|
||||
@todo wxHORIZONTAL and wxVERTICAL should go in their own enum
|
||||
*/
|
||||
int GetOrientation() const;
|
||||
|
||||
/**
|
||||
Returns the position of the scrollbar for the thumb track and release events.
|
||||
|
||||
Note that this field can't be used for the other events, you need to query
|
||||
the window itself for the current position in that case.
|
||||
*/
|
||||
@@ -396,10 +411,21 @@ public:
|
||||
when the user changes the colour settings using the control panel.
|
||||
This is only appropriate under Windows.
|
||||
|
||||
@remarks
|
||||
The default event handler for this event propagates the event to child windows,
|
||||
since Windows only sends the events to top-level windows.
|
||||
If intercepting this event for a top-level window, remember to call the base
|
||||
class handler, or to pass the event on to the window's children explicitly.
|
||||
|
||||
@beginEventTable{wxSysColourChangedEvent}
|
||||
@event{EVT_SYS_COLOUR_CHANGED(func)}:
|
||||
Process a wxEVT_SYS_COLOUR_CHANGED event.
|
||||
@endEventTable
|
||||
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxSysColourChangedEvent : public wxEvent
|
||||
{
|
||||
@@ -417,15 +443,20 @@ public:
|
||||
@wxheader{event.h}
|
||||
|
||||
This event is sent just after the actual window associated with a wxWindow
|
||||
object
|
||||
has been created. Since it is derived from wxCommandEvent, the event propagates
|
||||
up
|
||||
object has been created.
|
||||
|
||||
Since it is derived from wxCommandEvent, the event propagates up
|
||||
the window hierarchy.
|
||||
|
||||
@beginEventTable{wxWindowCreateEvent}
|
||||
@event{EVT_WINDOW_CREATE(func)}:
|
||||
Process a wxEVT_CREATE event.
|
||||
@endEventTable
|
||||
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxWindowDestroyEvent
|
||||
@see @ref overview_eventhandling, wxWindowDestroyEvent
|
||||
*/
|
||||
class wxWindowCreateEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -445,14 +476,69 @@ public:
|
||||
A paint event is sent when a window's contents needs to be repainted.
|
||||
|
||||
Please notice that in general it is impossible to change the drawing of a
|
||||
standard control (such as wxButton) and so you shouldn't
|
||||
attempt to handle paint events for them as even if it might work on some
|
||||
platforms, this is inherently not portable and won't work everywhere.
|
||||
standard control (such as wxButton) and so you shouldn't attempt to handle
|
||||
paint events for them as even if it might work on some platforms, this is
|
||||
inherently not portable and won't work everywhere.
|
||||
|
||||
@remarks
|
||||
Note that in a paint event handler, the application must always create a
|
||||
wxPaintDC object, even if you do not use it. Otherwise, under MS Windows,
|
||||
refreshing for this and other windows will go wrong.
|
||||
For example:
|
||||
@code
|
||||
void MyWindow::OnPaint(wxPaintEvent& event)
|
||||
{
|
||||
wxPaintDC dc(this);
|
||||
|
||||
DrawMyDocument(dc);
|
||||
}
|
||||
@endcode
|
||||
You can optimize painting by retrieving the rectangles that have been damaged
|
||||
and only repainting these. The rectangles are in terms of the client area,
|
||||
and are unscrolled, so you will need to do some calculations using the current
|
||||
view position to obtain logical, scrolled units.
|
||||
Here is an example of using the wxRegionIterator class:
|
||||
@code
|
||||
// Called when window needs to be repainted.
|
||||
void MyWindow::OnPaint(wxPaintEvent& event)
|
||||
{
|
||||
wxPaintDC dc(this);
|
||||
|
||||
// Find Out where the window is scrolled to
|
||||
int vbX,vbY; // Top left corner of client
|
||||
GetViewStart(&vbX,&vbY);
|
||||
|
||||
int vX,vY,vW,vH; // Dimensions of client area in pixels
|
||||
wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
|
||||
|
||||
while (upd)
|
||||
{
|
||||
vX = upd.GetX();
|
||||
vY = upd.GetY();
|
||||
vW = upd.GetW();
|
||||
vH = upd.GetH();
|
||||
|
||||
// Alternatively we can do this:
|
||||
// wxRect rect(upd.GetRect());
|
||||
|
||||
// Repaint this rectangle
|
||||
...some code...
|
||||
|
||||
upd ++ ;
|
||||
}
|
||||
}
|
||||
@endcode
|
||||
|
||||
|
||||
@beginEventTable{wxPaintEvent}
|
||||
@event{EVT_PAINT(func)}:
|
||||
Process a wxEVT_PAINT event.
|
||||
@endEventTable
|
||||
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxPaintEvent : public wxEvent
|
||||
{
|
||||
@@ -471,14 +557,18 @@ public:
|
||||
|
||||
An event being sent when a top level window is maximized. Notice that it is
|
||||
not sent when the window is restored to its original size after it had been
|
||||
maximized, only a normal wxSizeEvent is generated in
|
||||
this case.
|
||||
maximized, only a normal wxSizeEvent is generated in this case.
|
||||
|
||||
@beginEventTable{wxMaximizeEvent}
|
||||
@event{EVT_MAXIMIZE(func)}:
|
||||
Process a wxEVT_MAXIMIZE event.
|
||||
@endEventTable
|
||||
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxTopLevelWindow::Maximize,
|
||||
wxTopLevelWindow::IsMaximized
|
||||
@see @ref overview_eventhandling, wxTopLevelWindow::Maximize,
|
||||
wxTopLevelWindow::IsMaximized
|
||||
*/
|
||||
class wxMaximizeEvent : public wxEvent
|
||||
{
|
||||
@@ -498,10 +588,51 @@ public:
|
||||
This class is used for pseudo-events which are called by wxWidgets
|
||||
to give an application the chance to update various user interface elements.
|
||||
|
||||
@remarks
|
||||
Without update UI events, an application has to work hard to check/uncheck,
|
||||
enable/disable, show/hide, and set the text for elements such as menu items
|
||||
and toolbar buttons. The code for doing this has to be mixed up with the code
|
||||
that is invoked when an action is invoked for a menu item or button.
|
||||
With update UI events, you define an event handler to look at the state of the
|
||||
application and change UI elements accordingly. wxWidgets will call your member
|
||||
functions in idle time, so you don't have to worry where to call this code.
|
||||
In addition to being a clearer and more declarative method, it also means you don't
|
||||
have to worry whether you're updating a toolbar or menubar identifier. The same
|
||||
handler can update a menu item and toolbar button, if the identifier is the same.
|
||||
Instead of directly manipulating the menu or button, you call functions in the event
|
||||
object, such as wxUpdateUIEvent::Check. wxWidgets will determine whether such a
|
||||
call has been made, and which UI element to update.
|
||||
These events will work for popup menus as well as menubars. Just before a menu is
|
||||
popped up, wxMenu::UpdateUI is called to process any UI events for the window that
|
||||
owns the menu.
|
||||
If you find that the overhead of UI update processing is affecting your application,
|
||||
you can do one or both of the following:
|
||||
@li Call wxUpdateUIEvent::SetMode with a value of wxUPDATE_UI_PROCESS_SPECIFIED,
|
||||
and set the extra style wxWS_EX_PROCESS_UI_UPDATES for every window that should
|
||||
receive update events. No other windows will receive update events.
|
||||
@li Call wxUpdateUIEvent::SetUpdateInterval with a millisecond value to set the delay
|
||||
between updates. You may need to call wxWindow::UpdateWindowUI at critical points,
|
||||
for example when a dialog is about to be shown, in case the user sees a slight
|
||||
delay before windows are updated.
|
||||
Note that although events are sent in idle time, defining a wxIdleEvent handler
|
||||
for a window does not affect this because the events are sent from wxWindow::OnInternalIdle
|
||||
which is always called in idle time.
|
||||
wxWidgets tries to optimize update events on some platforms.
|
||||
On Windows and GTK+, events for menubar items are only sent when the menu is about
|
||||
to be shown, and not in idle time.
|
||||
|
||||
@beginEventTable{wxUpdateUIEvent}
|
||||
@event{EVT_UPDATE_UI(id, func)}:
|
||||
Process a wxEVT_UPDATE_UI event for the command with the given id.
|
||||
@event{EVT_UPDATE_UI_RANGE(id1, id2, func)}:
|
||||
Process a wxEVT_UPDATE_UI event for any command with id included in the given range.
|
||||
@endEventTable
|
||||
|
||||
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxUpdateUIEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -665,7 +796,7 @@ public:
|
||||
makes it possible to only process the latter if it doesn't matter if the
|
||||
text was copied or cut.
|
||||
|
||||
@beginEventTable
|
||||
@beginEventTable{wxClipboardTextEvent}
|
||||
@event{EVT_TEXT_COPY(id, func)}:
|
||||
Some or all of the controls content was copied to the clipboard.
|
||||
@event{EVT_TEXT_CUT(id, func)}:
|
||||
@@ -717,14 +848,14 @@ public:
|
||||
parent window receives @c wxEVT_LEAVE_WINDOW event not only when the
|
||||
mouse leaves the window entirely but also when it enters one of its children.
|
||||
|
||||
@b NB: Note that under Windows CE mouse enter and leave events are not natively
|
||||
@note Note that under Windows CE mouse enter and leave events are not natively
|
||||
supported
|
||||
by the system but are generated by wxWidgets itself. This has several
|
||||
drawbacks: the LEAVE_WINDOW event might be received some time after the mouse
|
||||
left the window and the state variables for it may have changed during this
|
||||
time.
|
||||
|
||||
@b NB: Note the difference between methods like
|
||||
@note Note the difference between methods like
|
||||
wxMouseEvent::LeftDown and
|
||||
wxMouseEvent::LeftIsDown: the former returns @true
|
||||
when the event corresponds to the left mouse button click while the latter
|
||||
@@ -1171,7 +1302,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxDropFilesEvent : public wxEvent
|
||||
{
|
||||
@@ -1343,7 +1474,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxApp::IsActive
|
||||
@see @ref overview_eventhandling, wxApp::IsActive
|
||||
*/
|
||||
class wxActivateEvent : public wxEvent
|
||||
{
|
||||
@@ -1385,7 +1516,7 @@ public:
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_wxcommandevent "Command events", @ref
|
||||
overview_eventhandlingoverview
|
||||
overview_eventhandling
|
||||
*/
|
||||
class wxContextMenuEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -1437,7 +1568,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxEraseEvent : public wxEvent
|
||||
{
|
||||
@@ -1470,7 +1601,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxFocusEvent : public wxEvent
|
||||
{
|
||||
@@ -1505,7 +1636,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxChildFocusEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -1546,7 +1677,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see wxMouseCaptureChangedEvent, @ref overview_eventhandlingoverview,
|
||||
@see wxMouseCaptureChangedEvent, @ref overview_eventhandling,
|
||||
wxWindow::CaptureMouse, wxWindow::ReleaseMouse, wxWindow::GetCapture
|
||||
*/
|
||||
class wxMouseCaptureLostEvent : public wxEvent
|
||||
@@ -1635,9 +1766,9 @@ public:
|
||||
since processing would stop after the first window found.
|
||||
|
||||
@library{wxcore}
|
||||
@category{FIXME}
|
||||
@category{events}
|
||||
|
||||
@see wxContextHelp, wxDialog, @ref overview_eventhandlingoverview
|
||||
@see wxContextHelp, wxDialog, @ref overview_eventhandling
|
||||
*/
|
||||
class wxHelpEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -1720,7 +1851,7 @@ public:
|
||||
@category{events}
|
||||
|
||||
@see wxScrollBar, wxSlider, wxSpinButton, , wxScrollWinEvent, @ref
|
||||
overview_eventhandlingoverview
|
||||
overview_eventhandling
|
||||
*/
|
||||
class wxScrollEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -1769,7 +1900,7 @@ public:
|
||||
@library{wxbase}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxUpdateUIEvent,
|
||||
@see @ref overview_eventhandling, wxUpdateUIEvent,
|
||||
wxWindow::OnInternalIdle
|
||||
*/
|
||||
class wxIdleEvent : public wxEvent
|
||||
@@ -1849,7 +1980,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxInitDialogEvent : public wxEvent
|
||||
{
|
||||
@@ -1882,7 +2013,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxWindowCreateEvent
|
||||
@see @ref overview_eventhandling, wxWindowCreateEvent
|
||||
*/
|
||||
class wxWindowDestroyEvent : public wxCommandEvent
|
||||
{
|
||||
@@ -1990,7 +2121,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see wxMouseCaptureLostEvent, @ref overview_eventhandlingoverview,
|
||||
@see wxMouseCaptureLostEvent, @ref overview_eventhandling,
|
||||
wxWindow::CaptureMouse, wxWindow::ReleaseMouse, wxWindow::GetCapture
|
||||
*/
|
||||
class wxMouseCaptureChangedEvent : public wxEvent
|
||||
@@ -2105,7 +2236,7 @@ public:
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_wxcommandevent "Command events", @ref
|
||||
overview_eventhandlingoverview
|
||||
overview_eventhandling
|
||||
*/
|
||||
class wxMenuEvent : public wxEvent
|
||||
{
|
||||
@@ -2163,9 +2294,9 @@ public:
|
||||
@endcode
|
||||
|
||||
@library{wxcore}
|
||||
@category{FIXME}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxEvtHandler
|
||||
@see @ref overview_eventhandling, wxEvtHandler
|
||||
*/
|
||||
class wxEventBlocker : public wxEvtHandler
|
||||
{
|
||||
@@ -2210,9 +2341,9 @@ public:
|
||||
will be identical to the "this" pointer for the wxEvtHandler portion.
|
||||
|
||||
@library{wxbase}
|
||||
@category{FIXME}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview
|
||||
@see @ref overview_eventhandling
|
||||
*/
|
||||
class wxEvtHandler : public wxObject
|
||||
{
|
||||
@@ -2495,7 +2626,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see @ref overview_eventhandlingoverview, wxTopLevelWindow::Iconize,
|
||||
@see @ref overview_eventhandling, wxTopLevelWindow::Iconize,
|
||||
wxTopLevelWindow::IsIconized
|
||||
*/
|
||||
class wxIconizeEvent : public wxEvent
|
||||
@@ -2524,7 +2655,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see wxPoint, @ref overview_eventhandlingoverview
|
||||
@see wxPoint, @ref overview_eventhandling
|
||||
*/
|
||||
class wxMoveEvent : public wxEvent
|
||||
{
|
||||
@@ -2550,7 +2681,7 @@ public:
|
||||
callback or member function. @b wxEvent used to be a multipurpose
|
||||
event object, and is an abstract base class for other event classes (see below).
|
||||
|
||||
For more information about events, see the @ref overview_eventhandlingoverview.
|
||||
For more information about events, see the @ref overview_eventhandling.
|
||||
|
||||
@b wxPerl note: In wxPerl custom event classes should be derived from
|
||||
@c Wx::PlEvent and @c Wx::PlCommandEvent.
|
||||
@@ -2718,7 +2849,7 @@ public:
|
||||
@library{wxcore}
|
||||
@category{events}
|
||||
|
||||
@see wxSize, @ref overview_eventhandlingoverview
|
||||
@see wxSize, @ref overview_eventhandling
|
||||
*/
|
||||
class wxSizeEvent : public wxEvent
|
||||
{
|
||||
@@ -2747,7 +2878,7 @@ public:
|
||||
specify the cursor you want to be displayed.
|
||||
|
||||
@library{wxcore}
|
||||
@category{FIXME}
|
||||
@category{events}
|
||||
|
||||
@see ::wxSetCursor, wxWindow::wxSetCursor
|
||||
*/
|
||||
|
Reference in New Issue
Block a user