| 123456789101112131415161718192021 |
- Pixmaps provide storage for rectangular regions of pixels.
- You can create a new pixmap using the #CreatePixmap command, or load a pixmap
- using #LoadPixmap.
- Pixmaps have 5 properties: width, height, a byte pointer to the pixmap's pixels, pitch and
- format.
- You can retrieve a pointer to a pixmap's pixels using the #PixmapPixelPtr command.
- A pixmap's pitch refers to the number of bytes between one row of pixels in the pixmap
- and the next. To retrieve a pixmap's pitch, use the #PixmapPitch command.
- A pixmap's pixel format determines how the pixels within a pixmap are stored in memory. This
- must be taken into account if you want to access pixels directly via a pixmap's pixel pointer.
- You can retrieve the format of a pixmap using the #PixmapFormat command, and convert pixmaps
- from one format to another using #ConvertPixmap.
- You can also use #ResizePixmap to resize a pixmap and flip a pixmap horizontally or vertically
- with #XFlipPixmap and #YFlipPixmap.
|
