XDrawRectangles man page on BSDOS

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XDrawRectangle(3X11)	XLIB FUNCTIONS	   XDrawRectangle(3X11)

NAME
       XDrawRectangle, XDrawRectangles, XRectangle - draw rectan-
       gles and rectangles structure

SYNTAX
       XDrawRectangle(display, d, gc, x, y, width, height)
	     Display *display;
	     Drawable d;
	     GC gc;
	     int x, y;
	     unsigned int width, height;

       XDrawRectangles(display, d, gc, rectangles, nrectangles)
	     Display *display;
	     Drawable d;
	     GC gc;
	     XRectangle rectangles[];
	     int nrectangles;

ARGUMENTS
       d	 Specifies the drawable.

       display	Specifies the connection to the X server.

       gc	Specifies the GC.

       nrectangles
		 Specifies the number of rectangles in the array.

       rectangles
		 Specifies an array of rectangles.

       width
       height	Specify the width and height, which specify the
		 dimensions of the rectangle.

       x
       y	 Specify the x and y coordinates, which specify
		 the upper-left corner of the rectangle.

DESCRIPTION
       The XDrawRectangle and XDrawRectangles functions draw the
       outlines of the specified rectangle or rectangles as if a
       five-point PolyLine protocol request were specified for
       each rectangle:

	      [x,y] [x+width,y] [x+width,y+height] [x,y+height]
	      [x,y]

       For the specified rectangle or rectangles, these functions
       do not draw a pixel more than once.  XDrawRectangles draws
       the rectangles in the order listed in the array. If rect-
       angles intersect, the intersecting pixels are drawn multi-
       ple times.

X Version 11		Release 6.4				1

XDrawRectangle(3X11)	XLIB FUNCTIONS	   XDrawRectangle(3X11)

       Both functions use these GC components: function, plane-
       mask, line-width, line-style, cap-style, join-style, fill-
       style, subwindow-mode, clip-x-origin, clip-y-origin, and
       clip-mask.  They also use these GC mode-dependent compo-
       nents: foreground, background, tile, stipple, tile-stip-
       ple-x-origin, tile-stipple-y-origin, dash-offset, and
       dash-list.

       XDrawRectangle and XDrawRectangles can generate
       BadDrawable, BadGC, and BadMatch errors.

STRUCTURES
       The XRectangle structure contains:

       typedef struct {
	    short x, y;
	    unsigned short width, height;
       } XRectangle;

       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 cor-
		 rect type and range but fails to match in some
		 other way required by the request.

SEE ALSO
       XDrawArc(3X11), XDrawLine(3X11), XDrawPoint(3X11)
       Xlib - C Language X Interface

X Version 11		Release 6.4				2

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