XDrawPoint

XDrawPoint(3X11)		XLIB FUNCTIONS		     XDrawPoint(3X11)



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

SYNTAX
       int XDrawPoint(Display *display, Drawable d, GC gc, int x, int y);

       int XDrawPoints(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 compo-
       nents 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, fore-
       ground, 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 Win-
		 dow 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 speci-
		 fied for an argument, the full range defined by the argu-
		 ment’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



							     XDrawPoint(3X11)