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Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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Status XGetWindowAttributes\^(\^Display *display\^, Window w\^, XWindowAttributes *window_attributes_return\^);
Status XGetGeometry\^(\^Display *display\^, Drawable d\^, Window *root_return\^, int *x_return\^, int *y_return\^, unsigned int *width_return\^, unsigned int *height_return\^, unsigned int *border_width_return\^, unsigned int *depth_return\^);
.ns
.ns
XGetWindowAttributes can generate BadDrawable and BadWindow errors.
The XGetGeometry function returns the root window and the current geometry of the drawable. The geometry of the drawable includes the x and y coordinates, width and height, border width, and depth. These are described in the argument list. It is legal to pass to this function a window whose class is InputOnly . It returns a nonzero status on success; otherwise, it returns a zero status.
.EX typedef struct { int x, y; /* location of window */ int width, height; /* width and height of window */ int border_width; /* border width of window */ int depth; /* depth of window */ Visual *visual; /* the associated visual structure */ Window root; /* root of screen containing window */ int class; /* InputOutput, InputOnly*/ int bit_gravity; /* one of the bit gravity values */ int win_gravity; /* one of the window gravity values */ int backing_store; /* NotUseful, WhenMapped, Always */ unsigned long backing_planes; /* planes to be preserved if possible */ unsigned long backing_pixel; /* value to be used when restoring planes */ Bool save_under; /* boolean, should bits under be saved? */ Colormap colormap; /* color map to be associated with window */ Bool map_installed; /* boolean, is color map currently installed*/ int map_state; /* IsUnmapped, IsUnviewable, IsViewable */ long all_event_masks; /* set of events all people have interest in*/ long your_event_mask; /* my event mask */ long do_not_propagate_mask; /* set of events that should not propagate */ Bool override_redirect; /* boolean value for override-redirect */ Screen *screen; /* back pointer to correct screen */ } XWindowAttributes;
The x and y members are set to the upper-left outer corner relative to the parent window's origin. The width and height members are set to the inside size of the window, not including the border. The border_width member is set to the window's border width in pixels. The depth member is set to the depth of the window (that is, bits per pixel for the object). The visual member is a pointer to the screen's associated Visual structure. The root member is set to the root window of the screen containing the window. The class member is set to the window's class and can be either InputOutput or InputOnly .
The bit_gravity member is set to the window's bit gravity and can be one of the following:
| ForgetGravity T} T{
EastGravity T}
T{
NorthWestGravity T} T{
SouthWestGravity T}
T{
NorthGravity T} T{
SouthGravity T}
T{
NorthEastGravity T} T{
SouthEastGravity T}
T{
WestGravity T} T{
StaticGravity T}
CenterGravity .TE
The win_gravity member is set to the window's window gravity and can be one of the following:
|