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<!-- ##### SECTION Title ##### -->
Bitmaps and Pixmaps
<!-- ##### SECTION Short_Description ##### -->
Offscreen drawables
<!-- ##### SECTION Long_Description ##### -->
<para>
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).
</para>
<para>
GTK 3 will remove #GdkPixmap and #GdkBitmap. You should use cairo
surfaces instead. However, because a lot of functions still use these
types, they are not deprecated.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### SECTION Image ##### -->
<!-- ##### TYPEDEF GdkPixmap ##### -->
<para>
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.
</para>
<!-- ##### FUNCTION gdk_pixmap_new ##### -->
<para>
Create a new pixmap with a given size and depth.
</para>
<para>
Please use gdk_window_create_similar_surface() instead of this
function if you're not forced to use a #GdkPixmap. It is intended
as the replacement function for this function in GTK 3.
</para>
@drawable: A #GdkDrawable, 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 @drawable is not %NULL, the depth of the new
pixmap will be equal to that of @drawable.
@Returns: the #GdkPixmap
<!-- ##### FUNCTION gdk_bitmap_create_from_data ##### -->
<para>
Creates a new bitmap from data in XBM format.
</para>
@drawable: a #GdkDrawable, 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
@Deprecated: 2.22: You can create a Cairo image surface using
cairo_image_surface_create_for_data() instead. Specify
%CAIRO_FORMAT_A1 as the format to get a bitmap. Keep in mind that
Cairo images must have a rowstride of 4 bytes, so you will need
to align your data properly. If you must use a pixmap, use
gdk_pixmap_new() with a depth of 1 to create a bitmap and then use
gdk_cairo_create(), cairo_set_source_surface() and cairo_paint()
to draw the image surface to the bitmap.
<!-- ##### FUNCTION gdk_pixmap_create_from_data ##### -->
<para>
Create a two-color pixmap from data in XBM data.
</para>
@drawable: a #GdkDrawable, 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
@Deprecated: 2.22: If you must replicate the functionality of this
function, create a pixmap using gdk_pixmap_new(), cairo_paint() it
with the background color and then create a Cairo image surface as
pointed out in the docs to gdk_bitmap_create_from_data() and use
this surface with cairo_mask_surface() to paint the foreground color.
<!-- ##### FUNCTION gdk_pixmap_create_from_xpm ##### -->
@drawable:
@mask:
@transparent_color:
@filename:
@Returns:
<!-- ##### FUNCTION gdk_pixmap_colormap_create_from_xpm ##### -->
@drawable:
@colormap:
@mask:
@transparent_color:
@filename:
@Returns:
<!-- ##### FUNCTION gdk_pixmap_create_from_xpm_d ##### -->
@drawable:
@mask:
@transparent_color:
@data:
@Returns:
<!-- ##### FUNCTION gdk_pixmap_colormap_create_from_xpm_d ##### -->
@drawable:
@colormap:
@mask:
@transparent_color:
@data:
@Returns:
<!-- ##### FUNCTION gdk_pixmap_get_size ##### -->
<para>
</para>
@pixmap:
@width:
@height:
<!-- ##### MACRO gdk_pixmap_ref ##### -->
<para>
Deprecated equivalent of g_object_ref().
</para>
@Returns: @pixmap
<!-- ##### MACRO gdk_pixmap_unref ##### -->
<para>
Deprecated equivalent of g_object_unref().
</para>
<!-- ##### TYPEDEF GdkBitmap ##### -->
<para>
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.
</para>
<!-- ##### MACRO gdk_bitmap_ref ##### -->
<para>
Deprecated equivalent of g_object_ref().
</para>
@Returns: @pixmap
<!-- ##### MACRO gdk_bitmap_unref ##### -->
<para>
Deprecated equivalent of g_object_unref().
</para>
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