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XFillRectangle(3X11) XLIB FUNCTIONS XFillRectangle(3X11)
NAME
XFillRectangle, XFillRectangles, XFillPolygon, XFillArc, XFillArcs -
fill rectangles, polygons, or arcs
SYNTAX
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);
ARGUMENTS
angle1 Specifies the start of the arc relative to the three-o'clock
position from the center, in units of degrees * 64.
angle2 Specifies the path and extent of the arc relative to the
start of the arc, in units of degrees * 64.
arcs Specifies an array of arcs.
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.
narcs Specifies the number of arcs in the array.
npoints Specifies the number of points in the array.
nrectangles
Specifies the number of rectangles in the array.
points Specifies an array of points.
rectangles
Specifies an array of rectangles.
shape Specifies a shape that helps the server to improve perfor-
mance. You can pass Complex, Convex, or Nonconvex.
width
height Specify the width and height, which are the dimensions of the
rectangle to be filled or the major and minor axes of the
arc.
x
y Specify the x and y coordinates, which are relative to the
origin of the drawable and specify the upper-left corner of
the rectangle.
DESCRIPTION
The XFillRectangle and XFillRectangles functions fill the specified
rectangle or rectangles as if a four-point FillPolygon protocol request
were specified for each rectangle:
[x,y] [x+width,y] [x+width,y+height] [x,y+height]
Each function uses the x and y coordinates, width and height dimen-
sions, and GC you specify.
XFillRectangles fills the rectangles in the order listed in the array.
For any given rectangle, XFillRectangle and XFillRectangles do not draw
a pixel more than once. If rectangles intersect, the intersecting pix-
els 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, back-
ground, tile, stipple, tile-stipple-x-origin, and tile-stipple-y-ori-
gin.
XFillRectangle and XFillRectangles can generate BadDrawable, BadGC, and
BadMatch errors.
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. XFillPolygon does not draw a pixel of the region
more than once. CoordModeOrigin treats all coordinates as relative to
the origin, and CoordModePrevious treats all coordinates after the
first as relative to the previous point.
Depending on the specified shape, the following occurs:
· If shape is Complex, the path may self-intersect. Note that con-
tiguous coincident points in the path are not treated as self-
intersection.
· If shape is 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 Convex can improve performance.
If you specify Convex for a path that is not convex, the graphics
results are undefined.
· If shape is Nonconvex, the path does not self-intersect, but the
shape is not wholly convex. If known by the client, specifying
Nonconvex instead of Complex may improve performance. If you
specify Nonconvex for a self-intersecting path, the graphics
results are undefined.
The fill-rule of the GC controls the filling behavior of self-inter-
secting 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: fore-
ground, background, tile, stipple, tile-stipple-x-origin, and tile-
stipple-y-origin.
XFillPolygon can generate BadDrawable, BadGC, BadMatch, and BadValue
errors.
For each arc, XFillArc or 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 Arc-
Chord, the single line segment joining the endpoints of the arc is
used. For ArcPieSlice, the two line segments joining the endpoints of
the arc with the center point are used. XFillArcs fills the arcs in
the order listed in the array. For any given arc, XFillArc and XFil-
lArcs 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: fore-
ground, background, tile, stipple, tile-stipple-x-origin, and tile-
stipple-y-origin.
XFillArc and XFillArcs can generate BadDrawable, BadGC, and BadMatch
errors.
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 GCon-
text.
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 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.
SEE ALSO
XDrawArc(3X11), XDrawPoint(3X11), XDrawRectangle(3X11)
Xlib - C Language X Interface
X Version 11 libX11 1.0.3 XFillRectangle(3X11)
Man(1) output converted with
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This page was generated on Sat Sep 8 16:36:23 GMT 2007
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