Table of Contents
XCreatePixmap, XFreePixmap
- create or destroy pixmaps
- Pixmap XCreatePixmap(Display *display,
Drawable d,
- unsigned int width, unsigned int height, unsigned int depth);
- int XFreePixmap(Display *display, Pixmap pixmap);
- d
- Specifies
which screen the pixmap is created on.
- depth
- Specifies the depth of the
pixmap.
- display
- Specifies the connection to the X server.
- pixmap
- Specifies
the pixmap.
- width
- height
- Specify the width and height, which define the dimensions of the
pixmap.
The XCreatePixmap function creates a pixmap of the
width, height, and depth you specified and returns a pixmap ID that identifies
it. It is valid to pass an InputOnly window to the drawable argument.
The width and height arguments must be nonzero, or a BadValue error
results. The depth argument must be one of the depths supported by the screen
of the specified drawable, or a BadValue error results.
The server uses
the specified drawable to determine on which screen to create the pixmap.
The pixmap can be used only on this screen and only with other drawables
of the same depth (see XCopyPlane for an exception to this rule). The
initial contents of the pixmap are undefined.
XCreatePixmap can generate
BadAlloc, BadDrawable, and BadValue errors.
The XFreePixmap function
first deletes the association between the pixmap ID and the pixmap. Then,
the X server frees the pixmap storage when there are no references to it.
The pixmap should never be referenced again.
XFreePixmap can generate
a BadPixmap error.
- BadAlloc
- The server failed to allocate
the requested resource or server memory.
- BadDrawable
- A value for a Drawable
argument does not name a defined Window or Pixmap.
- BadPixmap
- A value for
a Pixmap argument does not name a defined Pixmap.
- BadValue
- Some numeric
value falls outside the range of values accepted by the request. Unless
a specific range is specified for an argument, the full range defined by
the argument's type is accepted. Any argument defined as a set of alternatives
can generate this error.
XCopyArea(3)
Xlib - C Language X Interface
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