Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
XDrawRectangle(3)		 XLIB FUNCTIONS 	       XDrawRectangle(3)

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

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

     int XDrawRectangles(Display *display, Drawable d, GC gc, XRectangle rectan-
	    gles[], 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.

     rectanglesSpecifies 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 re-
     quest 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 rectangles intersect, the intersecting pixels  are
     drawn multiple times.

     Both  functions  use these GC components: function, plane-mask, line-width,
     line-style, cap-style, join-style, fill-style, subwindow-mode,  clip-x-ori-
     gin,  clip-y-origin,  and clip-mask.  They also use these GC mode-dependent
     components: foreground, background, tile,	stipple,  tile-stipple-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 coordi-
     nates 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.

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

X Version 11			  libX11 1.8.13 	       XDrawRectangle(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=XDrawRectangles&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

home | help