XDrawPoint(3X11)              SDK X11 R4.11MU05             XDrawPoint(3X11)


NAME
       XDrawPoint, XDrawPoints, XPoint - draw points and points structure

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 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.
       XDrawPoints can generate BadDrawable, BadGC, BadMatch, and BadValue
       errors.

STRUCTURES
       The XPoint structure contains:

       typedef struct {
            short x, y;
       } XPoint;

       All x and y members are signed integers.  The width and height
       members are 16-bit unsigned integers.  You should be careful not to
       generate coordinates and sizes out of the 16-bit ranges, because the
       protocol only has 16-bit fields for these values.

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


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