XChangeWindowAttributes(3X11) XChangeWindowAttributes(3X11)
NAME
XChangeWindowAttributes, XSetWindowBackground, XSetWin-
dowBackgroundPixmap, XSetWindowBorder, XSetWindowBorderPix-
map - 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
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XChangeWindowAttributes(3X11) XChangeWindowAttributes(3X11)
Specifies the border pixmap or CopyFromParent.
display Specifies the connection to the XWIN 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 XSetWindowAttri-
butes 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 back-
ground 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 back-
ground 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 win-
dow 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. How-
ever, only one client at a time can select for Substruc-
tureRedirectMask, 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.
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XChangeWindowAttributes(3X11) XChangeWindowAttributes(3X11)
The XSetWindowBackground function sets the background of the
window to the specified pixel value. Changing the back-
ground 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 back-
ground pixmap can immediately be freed if no further expli-
cit 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 Inpu-
tOnly 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.
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XChangeWindowAttributes(3X11) XChangeWindowAttributes(3X11)
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 gen-
erate this error.
BadWindow A value for a Window argument does not name a
defined Window.
SEE ALSO
XConfigureWindow(3X11),
XCreateWindow(3X11),
XDestroyWindow(3X11),
XMapWindow(3X11),
XRaiseWindow(3X11),
XUnmapWindow(3X11)
Xlib - C Language X Interface
XWIN 3.0 Last change: 9/1/88 .ie t
XChangeWindowAttributes(3X11) XChangeWindowAttributes(3X11)
XWIN 3.0 Last change: 9/1/88 .ie t