gtk/docs/reference/gdk/tmpl/pixmaps.sgml

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Bitmaps and Pixmaps

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Offscreen drawables

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<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>

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<para>
</para>

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<!-- ##### STRUCT 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>

@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


<!-- ##### 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


<!-- ##### 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: 


<!-- ##### 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>