X Version 11 (1 September 1988) XChangeWindowAttributes(XS)
NAME
XChangeWindowAttributes, XSetWindowBackground,
XSetWindowBackgroundPixmap, XSetWindowBorder,
XSetWindowBorderPixmap - change window attributes
SYNTAX
XChangeWindowAttributes(display, w, valuemask, attributes)
Display *display;
Window w;
unsigned long valuemask;
XSetWindowAttributes *attributes;
XSetWindowBackground(display, w, background_pixel)
Display *display;
Window w;
unsigned long background_pixel;
XSetWindowBackgroundPixmap(display, w, background_pixmap)
Display *display;
Window w;
Pixmap background_pixmap;
XSetWindowBorder(display, w, border_pixel)
Display *display;
Window w;
unsigned long border_pixel;
XSetWindowBorderPixmap(display, w, border_pixmap)
Display *display;
Window w;
Pixmap border_pixmap;
ARGUMENTS
attributes
Specifies the structure from which the values (as
specified by the value mask) are to be taken. The
value mask should have the appropriate bits set to
indicate which attributes have been set in the
structure.
background_pixel
Specifies the pixel that is to be used for the
background.
background_pixmap
Specifies the background pixmap, ParentRelative,
or None.
border_pixel
Specifies the entry in the colormap.
border_pixmap
Specifies the border pixmap or CopyFromParent.
display Specifies the connection to the X server.
valuemask Specifies which window attributes are defined in
the attributes argument. This mask is the bitwise
inclusive OR of the valid attribute mask bits. If
valuemask is zero, the attributes are ignored and
are not referenced.
w Specifies the window.
DESCRIPTION
Depending on the valuemask, the XChangeWindowAttributes
function uses the window attributes in the
XSetWindowAttributes structure to change the specified
window attributes. Changing the background does not cause
the window contents to be changed. To repaint the window
and its background, use XClearWindow. Setting the border or
changing the background such that the border tile origin
changes causes the border to be repainted. Changing the
background of a root window to None or ParentRelative
restores the default background pixmap. Changing the border
of a root window to CopyFromParent restores the default
border pixmap. Changing the win-gravity does not affect the
current position of the window. Changing the backing-store
of an obscured window to WhenMapped or Always, or changing
the backing-planes, backing-pixel, or save-under of a mapped
window may have no immediate effect. Changing the colormap
of a window (that is, defining a new map, not changing the
contents of the existing map) generates a ColormapNotify
event. Changing the colormap of a visible window may have
no immediate effect on the screen because the map may not be
installed (see XInstallColormap). Changing the cursor of a
root window to None restores the default cursor. Whenever
possible, you are encouraged to share colormaps.
Multiple clients can select input on the same window. Their
event masks are maintained separately. When an event is
generated, it is reported to all interested clients.
However, only one client at a time can select for
SubstructureRedirectMask, ResizeRedirectMask, and
ButtonPressMask. If a client attempts to select any of
these event masks and some other client has already selected
one, a BadAccess error results. There is only one do-not-
propagate-mask for a window, not one per client.
XChangeWindowAttributes can generate BadAccess, BadColor,
BadCursor, BadMatch, BadPixmap, BadValue, and BadWindow
errors.
The XSetWindowBackground function sets the background of the
window to the specified pixel value. Changing the
background does not cause the window contents to be changed.
XSetWindowBackground uses a pixmap of undefined size filled
with the pixel value you passed. If you try to change the
background of an InputOnly window, a BadMatch error results.
XSetWindowBackground can generate BadMatch and BadWindow
errors.
The XSetWindowBackgroundPixmap function sets the background
pixmap of the window to the specified pixmap. The
background pixmap can immediately be freed if no further
explicit references to it are to be made. If ParentRelative
is specified, the background pixmap of the window's parent
is used, or on the root window, the default background is
restored. If you try to change the background of an
InputOnly window, a BadMatch error results. If the
background is set to None, the window has no defined
background.
XSetWindowBackgroundPixmap can generate BadMatch, BadPixmap,
and BadWindow errors.
The XSetWindowBorder function sets the border of the window
to the pixel value you specify. If you attempt to perform
this on an InputOnly window, a BadMatch error results.
XSetWindowBorder can generate BadMatch and BadWindow errors.
The XSetWindowBorderPixmap function sets the border pixmap
of the window to the pixmap you specify. The border pixmap
can be freed immediately if no further explicit references
to it are to be made. If you specify CopyFromParent, a copy
of the parent window's border pixmap is used. If you
attempt to perform this on an InputOnly window, a BadMatch
error results.
XSetWindowBorderPixmap can generate BadMatch, BadPixmap, and
BadWindow errors.
DIAGNOSTICS
BadAccess A client attempted to free a color map entry that
it did not already allocate.
BadAccess A client attempted to store into a read-only color
map entry.
BadColor A value for a Colormap argument does not name a
defined Colormap.
BadCursor A value for a Cursor argument does not name a
defined Cursor.
BadMatch Some argument or pair of arguments has the correct
type and range but fails to match in some other
way required by the request.
BadMatch An InputOnly window locks this attribute.
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.
BadWindow A value for a Window argument does not name a
defined Window.
SEE ALSO
XConfigureWindow(XS), XCreateWindow(XS), XDestroyWindow(XS),
XMapWindow(XS), XRaiseWindow(XS), XUnmapWindow(XS)
Xlib - C Language X Interface
(printed 2/12/90) (1 September 1988)angeWindowAttributes(XS)