XChangeWindowAttributes(3X11)XChangeWindowAttributes(3X11)NAME
XChangeWindowAttributes, XSetWindowBackground, XSetWindowBackground‐
Pixmap, XSetWindowBorder, XSetWindowBorderPixmap, XSetWindowColormap -
change window attributes
SYNOPSIS
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;
XSetWindowColormap(display, w, colormap)
Display *display;
Window w;
Colormap colormap;
ARGUMENTS
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.
Specifies the pixel that is to be used for the background. Specifies
the background pixmap, ParentRelative, or None. Specifies the entry in
the colormap. Specifies the border pixmap or CopyFromParent. Speci‐
fies the connection to the X server. Specifies which window attributes
are defined in the attributes argument. This mask is the bitwise inclu‐
sive OR of the valid attribute mask bits. If valuemask is zero, the
attributes are ignored and are not referenced. Specifies the window.
Specifies the colormap.
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 back‐
ground, 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 Paren‐
tRelative 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 col‐
ormap 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. When‐
ever 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 Button‐
PressMask. 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 immedi‐
ately 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 Bad‐
Window 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 win‐
dow to the pixmap you specify. The border pixmap can be freed immedi‐
ately 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.
The XSetWindowColormap function sets the specified colormap of the
specified window. The colormap must have the same visual type as the
window, or a BadMatch error results.
XSetWindowColormap can generate BadColor, BadMatch, and BadWindow
errors.
DIAGNOSTICS
A client attempted to free a color map entry that it did not already
allocate. A client attempted to store into a read-only color map
entry. A value for a Colormap argument does not name a defined Col‐
ormap. A value for a Cursor argument does not name a defined Cursor.
Some argument or pair of arguments has the correct type and range but
fails to match in some other way required by the request. An InputOnly
window locks this attribute. A value for a Pixmap argument does not
name a defined Pixmap. 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. A value for a Window argument does not name a defined Win‐
dow.
SEE ALSOXConfigureWindow(3X11), XCreateWindow(3X11), XDestroyWindow(3X11), XIn‐
stallColormap(3X11), XMapWindow(3X11), XRaiseWindow(3X11), XUnmapWin‐
dow(3X11)
Xlib -- C Language X Interface
XChangeWindowAttributes(3X11)
