Amiga Unix — 68040 · 68060

Manual pages › X Window and screen libraries (3X)

XDrRect(3X)

draw rectangles

From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.

NAME

XDrawRectangle, XDrawRectangles - draw rectangles

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 XWIN server.

gc        Specifies the GC.

nrectangles

Specifies the number of rectangles in the array.

rectangles

Specifies a pointer to 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 rectan-
     gles intersect, the intersecting pixels are drawn multiple
     times.

XWIN 3.0               Last change: 9/1/88                 .ie t

     Both functions use these GC components: function, plane-
     mask, line-width, line-style, join-style, fill-style,
     subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask.
     They also use these GC mode-dependent components: fore-
     ground, 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.

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

XWIN 3.0               Last change: 9/1/88                 .ie t

XWIN 3.0               Last change: 9/1/88                 .ie t