Man page 3 : XFillRectangle

XFillRectangle, XFillRectangles, XFillPolygon, XFillArc, XFillArcs - fill rectangles, polygons, or arcs

int XFillRectangle(Display *display, Drawable d, GC gc, int x, int y, unsigned int width, unsigned int height); int XFillRectangles(Display *display, Drawable d, GC gc, XRectangle *rectangles, int nrectangles); int XFillPolygon(Display *display, Drawable d, GC gc, XPoint *points, int npoints, int shape, int mode); int XFillArc(Display *display, Drawable d, GC gc, int x, int y, unsigned int width, unsigned int height, int angle1, int angle2); int XFillArcs(Display *display, Drawable d, GC gc, XArc *arcs, int narcs);

angle1 1i Specifies the start of the arc relative to the three-o'clock position from the center, in units of degrees * 64.

angle2 1i Specifies the path and extent of the arc relative to the start of the arc, in units of degrees * 64.

arcs 1i Specifies an array of arcs.

d 1i Specifies the drawable.

display 1i Specifies the connection to the X server.

gc 1i Specifies the GC.

mode 1i Specifies the coordinate mode. You can pass .ZN CoordModeOrigin or .ZN CoordModePrevious .

narcs 1i Specifies the number of arcs in the array.

npoints 1i Specifies the number of points in the array.

nrectangles 1i Specifies the number of rectangles in the array.

points 1i Specifies an array of points.

rectangles 1i Specifies an array of rectangles.

shape 1i Specifies a shape that helps the server to improve performance. You can pass .ZN Complex , .ZN Convex , or .ZN Nonconvex .

width 1i

height 1i Specify the width and height\*(Wh.

x 1i

y 1i Specify the x and y coordinates\*(Xy.

The .ZN XFillRectangle and .ZN XFillRectangles functions fill the specified rectangle or rectangles as if a four-point .ZN FillPolygon protocol request were specified for each rectangle:

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

Each function uses the x and y coordinates, width and height dimensions, and GC you specify.

.ZN XFillRectangles fills the rectangles in the order listed in the array. For any given rectangle, .ZN XFillRectangle and .ZN XFillRectangles do not draw a pixel more than once. If rectangles intersect, the intersecting pixels are drawn multiple times.

Both functions use these GC components: function, plane-mask, fill-style, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask. They also use these GC mode-dependent components: foreground, background, tile, stipple, tile-stipple-x-origin, and tile-stipple-y-origin.

.ZN XFillRectangle and .ZN XFillRectangles can generate .ZN BadDrawable , .ZN BadGC , and .ZN BadMatch errors.

.ZN XFillPolygon fills the region closed by the specified path. The path is closed automatically if the last point in the list does not coincide with the first point. .ZN XFillPolygon does not draw a pixel of the region more than once. .ZN CoordModeOrigin treats all coordinates as relative to the origin, and .ZN CoordModePrevious treats all coordinates after the first as relative to the previous point.

Depending on the specified shape, the following occurs:

5 If shape is .ZN Complex , the path may self-intersect. Note that contiguous coincident points in the path are not treated as self-intersection.

5 If shape is .ZN Convex , for every pair of points inside the polygon, the line segment connecting them does not intersect the path. If known by the client, specifying .ZN Convex can improve performance. If you specify .ZN Convex for a path that is not convex, the graphics results are undefined.

5 If shape is .ZN Nonconvex , the path does not self-intersect, but the shape is not wholly convex. If known by the client, specifying .ZN Nonconvex instead of .ZN Complex may improve performance. If you specify .ZN Nonconvex for a self-intersecting path, the graphics results are undefined.

The fill-rule of the GC controls the filling behavior of self-intersecting polygons.

This function uses these GC components: function, plane-mask, fill-style, fill-rule, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask. It also uses these GC mode-dependent components: foreground, background, tile, stipple, tile-stipple-x-origin, and tile-stipple-y-origin.

.ZN XFillPolygon can generate .ZN BadDrawable , .ZN BadGC , .ZN BadMatch , and .ZN BadValue errors.

For each arc, .ZN XFillArc or .ZN XFillArcs fills the region closed by the infinitely thin path described by the specified arc and, depending on the arc-mode specified in the GC, one or two line segments. For .ZN ArcChord , the single line segment joining the endpoints of the arc is used. For .ZN ArcPieSlice , the two line segments joining the endpoints of the arc with the center point are used. .ZN XFillArcs fills the arcs in the order listed in the array. For any given arc, .ZN XFillArc and .ZN XFillArcs do not draw a pixel more than once. If regions intersect, the intersecting pixels are drawn multiple times.

Both functions use these GC components: function, plane-mask, fill-style, arc-mode, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask. They also use these GC mode-dependent components: foreground, background, tile, stipple, tile-stipple-x-origin, and tile-stipple-y-origin.

.ZN XFillArc and .ZN XFillArcs can generate .ZN BadDrawable , .ZN BadGC , and .ZN BadMatch errors.

• .ZN BadDrawable
   A value for a Drawable argument does not name a defined Window or Pixmap.
• .ZN BadGC
   A value for a GContext argument does not name a defined GContext.
• .ZN BadMatch
   An .ZN InputOnly window is used as a Drawable.
• .ZN 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.
• .ZN 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.

XDrawArc(3), XDrawPoint(3), XDrawRectangle(3)
\*(xL