xpolygonregion(3) [debian man page]

XPolygonRegion(3)						  XLIB FUNCTIONS						 XPolygonRegion(3)

NAME

       XPolygonRegion, XClipBox - generate regions

SYNTAX

       Region XPolygonRegion(XPoint points[], int n, int fill_rule);

       int XClipBox(Region r, XRectangle *rect_return);

ARGUMENTS

       fill_rule Specifies the fill-rule you want to set for the specified GC.	You can pass EvenOddRule or WindingRule.

       n	 Specifies the number of points in the polygon.

       points	 Specifies an array of points.

       r	 Specifies the region.

       rect_return
		 Returns the smallest enclosing rectangle.

DESCRIPTION

       The XPolygonRegion function returns a region for the polygon defined by the points array.  For an explanation of fill_rule, see XCreateGC.

       The XClipBox function returns the smallest rectangle enclosing the specified region.

SEE ALSO

       XCreateGC(3), XDrawPoint(3), XDrawRectangle(3)
       Xlib - C Language X Interface

X Version 11							   libX11 1.5.0 						 XPolygonRegion(3)

XIntersectRegion(3)						  XLIB FUNCTIONS					       XIntersectRegion(3)

NAME

       XIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion, XXorRegion, XOffsetRegion, XShrinkRegion - region arithmetic

SYNTAX

       int XIntersectRegion(Region sra, Region srb, Region dr_return);

       int XUnionRegion(Region sra, Region srb, Region dr_return);

       int XUnionRectWithRegion(XRectangle *rectangle, Region src_region, Region dest_region_return);

       int XSubtractRegion(Region sra, Region srb, Region dr_return);

       int XXorRegion(Region sra, Region srb, Region dr_return);

       int XOffsetRegion(Region r, int dx, int dy);

       int XShrinkRegion(Region r, int dx, int dy);

ARGUMENTS

       dest_region_return
		 Returns the destination region.

       dr_return Returns the result of the computation.  ds Dy move or shrink

       dx
       dy	 Specify the x and y coordinates, which define the amount you want to  the specified region.

       r	 Specifies the region.

       rectangle Specifies the rectangle.

       sra
       srb	 Specify the two regions with which you want to perform the computation.

       src_region
		 Specifies the source region to be used.

DESCRIPTION

       The XIntersectRegion function computes the intersection of two regions.

       The XUnionRegion function computes the union of two regions.

       The XUnionRectWithRegion function updates the destination region from a union of the specified rectangle and the specified source region.

       The XSubtractRegion function subtracts srb from sra and stores the results in dr_return.

       The XXorRegion function calculates the difference between the union and intersection of two regions.

       The XOffsetRegion function moves the specified region by a specified amount.

       The XShrinkRegion function reduces the specified region by a specified amount.  Positive values shrink the size of the region, and negative
       values expand the region.

SEE ALSO

       XCreateRegion(3), XDrawRectangle(3), XEmptyRegion(3)
       Xlib - C Language X Interface

X Version 11							   libX11 1.5.0 					       XIntersectRegion(3)