If you wish to extend the capabilities of wxBitmap, derive a class from
wxBitmapHandler and add the handler using wxBitmap::AddHandler() in your
- application initialisation.
+ application initialization.
Note that all wxBitmapHandlers provided by wxWidgets are part of the
@ref page_libs_wxcore library.
wxBitmap class documentation.
@library{wxcore}
- @category{misc}
+ @category{gdi}
@see @ref overview_bitmap, wxBitmap, wxIcon, wxCursor
*/
class (either wxNativePixelData for RGB bitmaps or wxAlphaPixelData
for bitmaps with an additionaly alpha channel).
- @note
- Many wxBitmap functions take a @e type parameter, which is a value of the
- ::wxBitmapType enumeration.
+ Note that many wxBitmap functions take a @e type parameter, which is a
+ value of the ::wxBitmapType enumeration.
The validity of those values depends however on the platform where your program
is running and from the wxWidgets configuration.
- If all possible wxWidgets settings are used, the Windows platform supports BMP file,
- BMP resource, XPM data, and XPM.
- Under wxGTK, the available formats are BMP file, XPM data, XPM file, and PNG file.
- Under wxMotif, the available formats are XBM data, XBM file, XPM data, XPM file.
- In addition, wxBitmap can load and save all formats that wxImage; see wxImage for
- more info. Of course, you must have wxImage handlers loaded.
+ If all possible wxWidgets settings are used:
+ - wxMSW supports BMP and ICO files, BMP and ICO resources;
+ - wxGTK supports XPM files;
+ - wxMac supports PICT resources;
+ - wxX11 supports XPM files, XPM data, XBM data;
+
+ In addition, wxBitmap can load and save all formats that wxImage can; see wxImage
+ for more info. Of course, you must have loaded the wxImage handlers
+ (see ::wxInitAllImageHandlers() and wxImage::AddHandler).
+ Note that all available wxBitmapHandlers for a given wxWidgets port are
+ automatically loaded at startup so you won't need to use wxBitmap::AddHandler.
@library{wxcore}
@category{gdi}
A depth of 32 including an alpha channel is supported under MSW, Mac and GTK+.
*/
wxBitmap(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+
+ /**
+ @overload
+ */
+ wxBitmap(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH);
/**
Creates a bitmap from XPM data.
@param handler
A new bitmap format handler object. There is usually only one instance
of a given handler class in an application session.
+
+ Note that unlike wxImage::AddHandler, there's no documented list of
+ the wxBitmapHandlers available in wxWidgets.
+ This is because they are platform-specific and most important, they are
+ all automatically loaded at startup.
+
+ If you want to be sure that wxBitmap can load a certain type of image,
+ you'd better use wxImage::AddHandler.
@see wxBitmapHandler
*/
/**
Creates a fresh bitmap.
If the final argument is omitted, the display depth of the screen is used.
-
- This overload works on all platforms.
+
+ @return @true if the creation was successful.
*/
virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+
+ /**
+ @overload
+ */
+ virtual bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH);
/*
Creates a bitmap from the given data, which can be of arbitrary type.