pass by reference, not value

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29436 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/function.tex

@@ -2601,7 +2601,7 @@ this language feature but still take advantage of it when it is available.
 
 \membersection{::wxGetKeyState}\label{wxgetkeystate}
 
-\func{bool}{wxGetKeyState}{\param{wxKeyCode }{key}}
+\func{bool}{wxGetKeyState}{\param{const wxKeyCode\& }{key}}
 
 Returns \true if the key parameter is currently pressed on the keyboard, or
 with modifier keys, (caps lock, etc) if the key is active (the led light is

include/wx/utils.h

@@ -101,7 +101,7 @@ WXDLLIMPEXP_BASE wxString wxGetDataDir();
 // Get the state of a key (true if pressed, false if not)
 // This is generally most useful getting the state of
 // the modifier or toggle keys.
-WXDLLEXPORT bool wxGetKeyState(wxKeyCode key);
+WXDLLEXPORT bool wxGetKeyState(const wxKeyCode& key);
 
 
 // Don't synthesize KeyUp events holding down a key and producing

src/mac/carbon/app.cpp

@@ -1177,7 +1177,7 @@ int wxMacKeyCodeToModifier(wxKeyCode key)
     }
 }
 
-bool wxGetKeyState(wxKeyCode key) //virtual key code if < 10.2.x, else see below
+bool wxGetKeyState(const wxKeyCode& key) //virtual key code if < 10.2.x, else see below
 {
 #ifdef __DARWIN__
     // Startup HID keyboard for getting key codes on DARWIN

src/mac/classic/app.cpp

@@ -1851,17 +1851,10 @@ int wxKeyCodeToMacModifier(wxKeyCode key)
     }
 }
 
-bool wxGetKeyState(wxKeyCode key) //virtual key code if < 10.2.x, else see below
+bool wxGetKeyState(const wxKeyCode& key) //virtual key code if < 10.2.x, else see below
 {
 #if __WXMAC_CARBON__
-//#ifdef __DARWIN__
-//	wxHIDKeyboard keyboard;
-//	return keyboard.IsActive(key);
-//#else
-// TODO:  Have it use HID Manager on OSX...
-//if OS X > 10.2 (i.e. 10.2.x)
-//a known apple bug prevents the system from determining led
-//states with GetKeys... can only determine caps lock led
+//TODO: Low get map...
    return !!(GetCurrentKeyModifiers() & wxKeyCodeToMacModifier(key)); 
 #else
 	KeyMap keymap; 

src/msw/window.cpp

@@ -5138,7 +5138,7 @@ int wxCharCodeWXToMSW(int id, bool *isVirtual)
     return keySym;
 }
 
-bool wxGetKeyState(wxKeyCode key)
+bool wxGetKeyState(const wxKeyCode& key)
 {
     bool bVirtual;
     int vkey = wxCharCodeWXToMSW(key, &bVirtual);

src/unix/utilsx11.cpp

@@ -762,7 +762,7 @@ KeySym wxCharCodeWXToX(int id)
 
 #include <wx/app.h>
 
-bool wxGetKeyState(wxKeyCode key)
+bool wxGetKeyState(const wxKeyCode& key)
 {
 #if defined(__WXX11__)
     Display *pDisplay = (Display*) wxApp::GetDisplay();