Updated some doc (wxProcess, wxSoundStream)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6419 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -26,12 +26,17 @@ processed (and call \helpref{Detach()}{wxprocessdetach} for others).
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\membersection{wxProcess::wxProcess}\label{wxprocessconstr}
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\func{}{wxProcess}{\param{wxEvtHandler *}{ parent = NULL}, \param{int}{ id = -1}}
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\func{}{wxProcess}{\param{wxEvtHandler *}{ parent = NULL}, \param{bool}{ needPipe = FALSE}, \param{int}{ id = -1}}
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Constructs a process object. {\it id} is only used in the case you want to
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use wxWindows events. It identifies this object, or another window that will
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receive the event.
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If you set {\it needPipe} to TRUE, wxExecute will try to open a couple of pipes
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to catch the subprocess stdio. The caught input stream is returned by
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GetOutputStream() as a non-seekable stream. The caught output stream is returned
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by GetInputStream() as a non-seekable stream.
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If the {\it parent} parameter is different from NULL, it will receive
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a wxEVT\_END\_PROCESS notification event (you should insert EVT\_END\_PROCESS
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macro in the event table of the parent to handle it) with the given {\it id}.
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@@ -62,6 +67,20 @@ from its parent, no notification events will be sent to the parent and the
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object will delete itself upon reception of the process termination
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notification.
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\membersection{wxProcess::GetInputStream}\label{wxprocessgetinputstream}
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\constfunc{wxInputStream* }{GetInputStream}{\void}
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It returns a input stream correspoding to the output stream of the subprocess.
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If it is NULL, you have not set needPipe to TRUE.
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\membersection{wxProcess::GetInputStream}\label{wxprocessgetinputstream}
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\constfunc{wxInputStream* }{GetInputStream}{\void}
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It returns a output stream corresponding to the input stream of the subprocess.
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If it is NULL, you have not set needPipe to TRUE.
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\membersection{wxProcess::OnTerminate}\label{wxprocessonterminate}
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\constfunc{void}{OnTerminate}{\param{int}{ pid}, \param{int}{ status}}
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@@ -200,18 +200,26 @@ will not block for this buffer size.
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\func{bool}{SetSoundFormat}{\param{const wxSoundFormatBase\& }{format}}
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SetSoundFormat is one of the key function of the wxSoundStream object. It specifies
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the sound format the user needs. SetSoundFormat tries to apply the format to the
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current sound stream (it can be a sound file or a sound driver).
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Then, either it manages to apply it and it returns {\bf TRUE}, or it could not and
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it returns {\bf FALSE}. In this case, you must check the error with
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\helpref{wxSoundStream::GetError}{wxsoundstreamgeterror}. See
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\helpref{wxSoundStream errors section}{wxsoundstream} for more details.
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SetSoundFormat is one of the key function of the wxSoundStream object.
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It specifies the sound format the user needs. SetSoundFormat tries to
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apply the format to the current sound stream (it can be a sound file or a
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sound driver). Then, either it manages to apply it and it returns {\bf TRUE},
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or it could not and it returns {\bf FALSE}. In this case, you must check
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the error with
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\helpref{wxSoundStream::GetError}{wxsoundstreamgeterror}. See
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\helpref{wxSoundStream errors section}{wxsoundstreamerrors} for more details.
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\wxheading{Remark}
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\wxheading{Note}
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The {\bf format} object can be destroyed after the call. The object does not need it.
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\wxheading{Note}
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If the error is {\bf wxSOUND\_NOTEXACT}, the stream tries to find the best
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approaching format and setups it. You can check the format which it applied
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with \helpref{wxSoundStream::GetSoundFormat}{wxsoundstreamgetsoundformat}.
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%%
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%% GetSoundFormat
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%%
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@@ -229,9 +237,9 @@ the stream itself.
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\func{void}{Register}{\param{int }{evt}, \param{wxSoundCallback }{cbk}, \param{void* }{cdata}}
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It installs a C callback for wxSoundStream events. The C callbacks are still useful
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to avoid hard inheritance. You can install only one callback per event. Each callback
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has its callback data.
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It installs a C callback for wxSoundStream events. The C callbacks are still
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useful to avoid hard inheritance. You can install only one callback per event.
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Each callback has its callback data.
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%%
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%% StartProduction
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@@ -240,38 +248,41 @@ has its callback data.
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\func{bool}{StartProduction}{\param{int }{evt}}
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Starts the async notifier. After this call, the stream begins either
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recording or playing or the two at the same time.
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StartProduction starts the sound streaming. {\it evt} may be one of
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{\bf wxSOUND\_INPUT}, {\bf wxSOUND\_OUTPUT} or {\bf wxSOUND\_DUPLEX}.
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You cannot specify several flags at the same time. Starting the production
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may automaticaly in position of buffer underrun (only in the case you activated
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recording). Actually this may happen the sound IO queue is too short.
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It is also advised that you fill quickly enough the sound IO queue when the
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driver requests it (through a wxSoundEvent).
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\membersection{wxSoundStream::StopProduction}\label{wxsoundstreamstopproduction}
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\func{bool}{StopProduction}{\void}
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Stops the async notifier.
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I stops the async notifier and the sound streaming straightly.
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\membersection{wxSoundStream::SetEventHandler}\label{wxsoundstreamseteventhandler}
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\func{void}{SetEventHandler}{\param{wxSoundStream* }{handler}}
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Sets the event handler: if it is non-null, all events are routed to it.
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\membersection{wxSoundStream::GetError}\label{wxsoundstreamgeterror}
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\constfunc{wxSoundError}{GetError}{\void}
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\membersection{wxSoundStream::GetLastAccess}\label{wxsoundstreamgetlastaccess}
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It returns the last error which occured.
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\membersection{wxSoundStream::GetLastAccess}\label{wxsoundstreamgetlastaccess}
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\constfunc{wxUint32}{GetLastAccess}{\void}
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\membersection{wxSoundStream::QueueFilled}\label{wxsoundstreamqueuefilled}
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It returns the number of bytes which were effectively written to/read from the sound stream.
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\membersection{wxSoundStream::QueueFilled}\label{wxsoundstreamqueuefilled}
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\constfunc{bool}{QueueFilled}{\void}
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This is only useful for device (I think).
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It returns whether the sound IO queue is full. When it is full, the next IO call will block
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until the IO queue has at least one empty entry.
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\membersection{wxSoundStream::OnSoundEvent}\label{wxsoundstreamonsoundevent}
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\func{void}{OnSoundEvent}{\param{int }{evt}}
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Handles event.
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It is called by the wxSoundStream when a new sound event occured.
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