/////////////////////////////////////////////////////////////////////////////
// Name: mediactrl.h
-// Purpose: documentation for wxMediaEvent class
+// Purpose: interface of wxMediaEvent
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
};
+
/**
@class wxMediaCtrl
@wxheader{mediactrl.h}
@library{wxmedia}
@category{media}
- @seealso
- wxMediaEvent
+ @see wxMediaEvent
*/
class wxMediaCtrl : public wxControl
{
//@{
/**
,
- @b const wxPoint&
-
+ wxPoint&
+
@param pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxValidatorvalidator = wxDefaultValidator,
const wxString& name = wxPanelNameStr
)
-
+
Constructor that calls Create. You may prefer to call Create directly to check
to see if wxMediaCtrl is available on the system.
-
+
parent
- parent of this control. Must not be @NULL.
-
+ parent of this control. Must not be @NULL.
@param id
- id to use for events
-
+ id to use for events
@param fileName
- If not empty, the path of a file to open.
-
+ If not empty, the path of a file to open.
@param pos
- Position to put control at.
-
+ Position to put control at.
@param size
- Size to put the control at and to stretch movie to.
-
+ Size to put the control at and to stretch movie to.
@param style
- Optional styles.
-
+ Optional styles.
@param szBackend
- Name of backend you want to use, leave blank to make
- wxMediaCtrl figure it out.
-
+ Name of backend you want to use, leave blank to make
+ wxMediaCtrl figure it out.
@param validator
- validator to use.
-
+ validator to use.
@param name
- Window name.
+ Window name.
*/
- wxMediaCtrl();
- wxMediaCtrl(wxWindow* parent, wxWindowID id);
+ wxMediaCtrl() const;
+ wxMediaCtrl(wxWindow* parent, wxWindowID id) const;
//@}
/**
to do to choose a specific backend is to pass the
name of the backend class to
Create().
-
The following are valid backend identifiers -
-
+
@b wxMEDIABACKEND_DIRECTSHOW
-
-
-
+
+
Use ActiveMovie/DirectShow. Uses the native ActiveMovie
(I.E. DirectShow) control. Default backend on Windows and
supported by nearly all Windows versions, even some
Windows CE versions. May display a windows media player
logo while inactive.
-
+
@b wxMEDIABACKEND_QUICKTIME
-
-
+
Use QuickTime. Mac Only.
WARNING: May not working correctly embedded in a wxNotebook.
-
-
+
@b wxMEDIABACKEND_GSTREAMER
-
-
+
Use GStreamer. Unix Only. Requires GStreamer 0.8 along
with at the very least the xvimagesink, xoverlay, and
gst-play modules of gstreamer to function. You need the correct
modules to play the relavant files, for example the mad module
to play mp3s, etc.
-
+
@b wxMEDIABACKEND_WMP10
-
-
+
Uses Windows Media Player 10 (Windows only) - works on mobile
machines with Windows Media Player 10 and desktop machines with
either Windows Media Player 9 or 10
-
+
Note that other backends such as wxMEDIABACKEND_MCI can now be
found at wxCode.
*/
/**
,
- @b const wxPoint&
-
+ wxPoint&
+
@param pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxValidatorvalidator = wxDefaultValidator,
const wxString& name = wxPanelNameStr
)
-
+
Creates this control. Returns @false if it can't load the movie located at
fileName or it cannot load one of its native backends.
-
+
If you specify a file to open via fileName and you don't specify a backend to
use, wxMediaCtrl tries each of its backends until one that can render the path referred to by fileName can be found.
-
+
parent
- parent of this control. Must not be @NULL.
-
+ parent of this control. Must not be @NULL.
@param id
- id to use for events
-
+ id to use for events
@param fileName
- If not empty, the path of a file to open.
-
+ If not empty, the path of a file to open.
@param pos
- Position to put control at.
-
+ Position to put control at.
@param size
- Size to put the control at and to stretch movie to.
-
+ Size to put the control at and to stretch movie to.
@param style
- Optional styles.
-
+ Optional styles.
@param szBackend
- Name of backend you want to use, leave blank to make
- wxMediaCtrl figure it out.
-
+ Name of backend you want to use, leave blank to make
+ wxMediaCtrl figure it out.
@param validator
- validator to use.
-
+ validator to use.
@param name
- Window name.
+ Window name.
*/
- bool Create(wxWindow* parent, wxWindowID id);
+ bool Create(wxWindow* parent, wxWindowID id) const;
/**
Creating a backend for wxMediaCtrl is a rather simple process. Simply derive
in wxMediaBackend correspond to those in wxMediaCtrl except for CreateControl
which does the actual creation of the control, in cases where a custom control
is not needed you may simply call wxControl::Create.
-
You need to make sure to use the DECLARE_CLASS and IMPLEMENT_CLASS macros.
-
The only real tricky part is that you need to make sure the file in compiled
in, which if there are just backends in there will not happen and you may need
to use a force link hack (see http://www.wxwidgets.org/wiki/index.php/RTTI).
-
This is a rather simple example of how to create a backend in the
wxActiveXContainer documentation.
*/
/**
Obtains the state the playback of the media is in -
-
-
+
@b wxMEDIASTATE_STOPPED
-
-
+
The movie has stopped.
-
+
@b wxMEDIASTATE_PAUSED
-
-
+
The movie is paused.
-
+
@b wxMEDIASTATE_PLAYING
-
-
+
The movie is currently playing.
*/
wxMediaCtrlState GetState();
event to its parent window, at which point the event handler
can choose to veto the event, preventing the stream from actually
stopping.
-
Example:
-
+
When wxMediaCtrl stops, either by the EVT_MEDIA_STOP not being
vetoed, or by manually calling
Stop(), where it actually
because some streams are not seekable, and when stop is called
on them they return to the beginning, thus wxMediaCtrl tries
to keep consistant for all types of media.
-
Note that when changing the state of the media through Play()
and other methods, the media may not actually be in the
wxMEDIASTATE_PLAYING, for example. If you are relying on the
since it relies on native system calls that may not technically
have mp3 decoding available, for example, it falls outside the
realm of licensing restrictions).
-
For general operation, all you need to do is call
Load() to load the file
you want to render, catch the EVT_MEDIA_LOADED event,
and then call Play()
to show the video/audio of the media in that event.
-
More complex operations are generally more heavily dependant on the
capabilities of the backend. For example, QuickTime cannot set
the playback rate of certain streaming media - while DirectShow is
calling the function with default parameters tells wxMediaCtrl to use the
default controls provided by the toolkit. The function takes a
@c wxMediaCtrlPlayerControls enumeration as follows:
-
-
+
@b wxMEDIACTRLPLAYERCONTROLS_NONE
-
-
+
No controls. return wxMediaCtrl to it's default state.
-
+
@b wxMEDIACTRLPLAYERCONTROLS_STEP
-
-
+
Step controls like fastfoward, step one frame etc.
-
+
@b wxMEDIACTRLPLAYERCONTROLS_VOLUME
-
-
+
Volume controls like the speaker icon, volume slider, etc.
-
+
@b wxMEDIACTRLPLAYERCONTROLS_DEFAULT
-
-
+
Default controls for the toolkit. Currently a typedef for
wxMEDIACTRLPLAYERCONTROLS_STEP and wxMEDIACTRLPLAYERCONTROLS_VOLUME.
-
+
For more see @ref overview_playercontrolswxmediactrl "Player controls".
Currently
only implemented on the QuickTime and DirectShow backends. The function
/**
Stops the media.
-
- See Operation for an overview of how
+ See Operation() for an overview of how
stopping works.
*/
bool Stop();
In addition, the backend may modify GetBestSize() to include the
size of the extra controls - so if you want the real size of the
video just disable ShowPlayerControls().
-
The idea with setting GetBestSize to the size of the video is
that GetBestSize is a wxWindow-derived function that is called
when sizers on a window recalculate. What this means is that
original size without any extra assistance needed from the user.
*/
};
+
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