XDrawPoint(3X11)    X Version 11 (Release 4)     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 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


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       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


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                 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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