Bitmaps and Pixmaps
Offscreen drawables.
Pixmaps are offscreen drawables. They can be drawn upon with the
standard drawing primitives, then copied to another drawable (such as
a #GdkWindow) with gdk_pixmap_draw(). The depth of a pixmap
is the number of bits per pixels. Bitmaps are simply pixmaps
with a depth of 1. (That is, they are monochrome bitmaps - each
pixel can be either on or off).
An opaque structure representing an offscreen drawable.
Pointers to structures of type #GdkPixmap, #GdkBitmap,
and #GdkWindow, can often be used interchangeably.
The type #GdkDrawable refers generically to any of
these types.
@user_data:
Create a new pixmap with a given size and depth.
@window: a #GdkWindow, used to determine default values for the
new pixmap. Can be %NULL if @depth is specified,
@width: The width of the new pixmap in pixels.
@height: The height of the new pixmap in pixels.
@depth: The depth (number of bits per pixel) of the new pixmap.
If -1, and @window is not %NULL, the depth of the new
pixmap will be equal to that of @window.
@Returns: the #GdkPixmap
Creates a new bitmap from data in XBM format.
@window: a #GdkWindow, used to determine default values for the
new pixmap. Can be %NULL, in which case the root window is
used.
@data: a pointer to the XBM data.
@width: the width of the new pixmap in pixels.
@height: the height of the new pixmap in pixels.
@Returns: the #GdkBitmap
Create a two-color pixmap from data in XBM data.
@window: a #GdkWindow, used to determine default values for the
new pixmap. Can be %NULL, if the depth is given.
@data: a pointer to the data.
@width: the width of the new pixmap in pixels.
@height: the height of the new pixmap in pixels.
@depth: the depth (number of bits per pixel) of the new pixmap.
@fg: the foreground color.
@bg: the background color.
@Returns: the #GdkPixmap
Create a pixmap from a XPM file.
@window: a #GdkWindow, used to determine default values for the
new pixmap.
@mask: a pointer to a place to store a bitmap representing
the transparency mask of the XPM file. Can be %NULL,
in which case transparency will be ignored.
@transparent_color: the color to be used for the pixels
that are transparent in the input file. Can be %NULL,
in which case a default color will be used.
@filename: the filename of a file containing XPM data.
@Returns: the #GdkPixmap
Create a pixmap from a XPM file using a particular colormap.
@window: a #GdkWindow, used to determine default values for the
new pixmap. Can be %NULL if @colormap is given.
@colormap: the #GdkColormap that the new pixmap will be use.
If omitted, the colormap for @window will be used.
@mask: a pointer to a place to store a bitmap representing
the transparency mask of the XPM file. Can be %NULL,
in which case transparency will be ignored.
@transparent_color: the color to be used for the pixels
that are transparent in the input file. Can be %NULL,
in which case a default color will be used.
@filename: the filename of a file containing XPM data.
@Returns: the #GdkPixmap.
Create a pixmap from data in XPM format.
@window: a #GdkWindow, used to determine default values for the
new pixmap.
@mask: Pointer to a place to store a bitmap representing
the transparency mask of the XPM file. Can be %NULL,
in which case transparency will be ignored.
@transparent_color: This color will be used for the pixels
that are transparent in the input file. Can be %NULL
in which case a default color will be used.
@data: Pointer to a string containing the XPM data.
@Returns: the #GdkPixmap
Create a pixmap from data in XPM format using a particular
colormap.
@window: a #GdkWindow, used to determine default values for the
new pixmap. Can be %NULL if @colormap is given.
@colormap: the #GdkColormap that the new pixmap will be use.
If omitted, the colormap for @window will be used.
@mask: a pointer to a place to store a bitmap representing
the transparency mask of the XPM file. Can be %NULL,
in which case transparency will be ignored.
@transparent_color: the color to be used for the pixels
that are transparent in the input file. Can be %NULL,
in which case a default color will be used.
@data: Pointer to a string containing the XPM data.
@Returns: the #GdkPixmap.
Increase the reference count of a pixmap.
@pixmap: a #GdkPixmap
@Returns: @pixmap
Decrease the reference count of a pixmap. If the resulting
reference count is zero, destroy the pixmap.
@pixmap: a #GdkPixmap
An opaque structure representing an offscreen drawable of depth
1. Pointers to structures of type #GdkPixmap, #GdkBitmap, and
#GdkWindow, can often be used interchangeably. The type #GdkDrawable
refers generically to any of these types.
@user_data:
Increase the reference count of a bitmap. An alias
for gdk_pixmap_ref().
@Returns: @pixmap
@pixmap: a #GdkBitmap
Decrease the reference count of a bitmap. An alias
for gdk_pixmap_unref().
@pixmap: a #GdkBitmap