XDrawPoint(3X11) BSD XDrawPoint(3X11)
NAME
XDrawPoint, XDrawPoints - draw points
SYNTAX
XDrawPoint(display, d, gc, x, y)
Display *display;
Drawable d;
GC gc;
int x, y;
XDrawPoints(display, d, gc, points, npoints, mode)
Display *display;
Drawable d;
GC gc;
XPoint *points;
int npoints;
int mode;
ARGUMENTS
d Specifies the drawable.
display Specifies the connection to the X server.
gc Specifies the GC.
mode Specifies the coordinate mode. You can pass CoordModeOrigin or
CoordModePrevious.
npoints Specifies the number of points in the array.
points Specifies a pointer to an array of points.
x
y Specify the x and y coordinates where you want the point drawn.
DESCRIPTION
The XDrawPoint function uses the foreground pixel and function components
of the GC to draw a single point into the specified drawable; XDrawPoints
draws multiple points this way. CoordModeOrigin treats all coordinates
as relative to the origin, and CoordModePrevious treats all coordinates
after the first as relative to the previous point. XDrawPoints draws the
points in the order listed in the array.
Both functions use these GC components: function, plane-mask, foreground,
subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask.
XDrawPoint can generate BadDrawable, BadGC, and BadMatch errors.
XDrawPoint can generate BadDrawable, BadGC, BadMatch, and BadValue
errors.
DIAGNOSTICS
BadDrawable
A value for a Drawable argument does not name a defined Window
or Pixmap.
BadGC A value for a GContext argument does not name a defined
GContext.
BadMatch An InputOnly window is used as a Drawable.
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.
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.
SEE ALSO
XDrawArc(3X11), XDrawLine(3X11), XDrawRectangle(3X11)
Xlib - C Language X Interface