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.
+ For details about the default handlers, please see the note in the
+ 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}
@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
*/
@see wxBitmapHandler
*/
- static wxList GetHandlers();
+ static wxList& GetHandlers();
/**
Gets the height of the bitmap in pixels.
+
+ @see GetWidth(), GetSize()
*/
virtual int GetHeight() const;
*/
virtual wxBitmap GetSubBitmap(const wxRect& rect) const;
+ /**
+ Returns the size of the bitmap in pixels.
+
+ @since 2.9.0
+
+ @see GetHeight(), GetWidth()
+ */
+ wxSize GetSize() const;
+
/**
Gets the width of the bitmap in pixels.
- @see GetHeight()
+ @see GetHeight(), GetSize()
*/
virtual int GetWidth() const;
/**
Returns @true if bitmap data is present.
*/
- bool IsOk() const;
+ virtual bool IsOk() const;
/**
Loads a bitmap from a file or resource.