212 lines
4.8 KiB
Plaintext
212 lines
4.8 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.TH XIntersectRegion 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion, XXorRegion, XOffsetRegion, XShrinkRegion \- region arithmetic
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.SH SYNTAX
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.\" $Header: XInterReg.f,v 1.2 88/04/07 17:02:01 mento Exp $
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XIntersectRegion\^(\^\fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^)
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.br
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Region \fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^;
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.LP
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.\" $Header: XUnionRegion.f,v 1.2 88/04/07 17:03:24 mento Exp $
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XUnionRegion\^(\^\fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^)
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.br
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Region \fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^;
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.LP
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XUnionRectWithRegion\^(\^\fIrectangle\fP, \fIsrc_region\fP, \
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\fIdest_region_return\fP\^)
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.br
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XRectangle *\fIrectangle\fP\^;
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.br
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Region \fIsrc_region\fP\^;
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.br
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Region \fIdest_region_return\fP\^;
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.LP
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.\" $Header: XSubtractReg.f,v 1.2 88/04/07 17:07:58 mento Exp $
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XSubtractRegion\^(\^\fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^)
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.br
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Region \fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^;
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.LP
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.\" $Header: XXorRegion.f,v 1.2 88/04/07 17:09:05 mento Exp $
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XXorRegion\^(\^\fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^)
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.br
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Region \fIsra\fP\^, \fIsrb\fP\^, \fIdr_return\fP\^;
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.LP
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.\" $Header: XOffsetReg.f,v 1.1 88/02/26 10:01:40 mento Exp $
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XOffsetRegion\^(\^\fIr\fP\^, \fIdx\fP\^, \fIdy\fP\^)
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.br
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Region \fIr\fP\^;
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.br
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int \fIdx\fP\^, \fIdy\fP\^;
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.LP
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.\" $Header: XShrinkReg.f,v 1.1 88/02/26 10:03:47 mento Exp $
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XShrinkRegion\^(\^\fIr\fP\^, \fIdx\fP\^, \fIdy\fP\^)
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.br
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Region \fIr\fP\^;
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.br
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int \fIdx\fP\^, \fIdy\fP\^;
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.SH ARGUMENTS
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.IP \fIdest_region_return\fP 1i
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Returns the destination region.
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.\" $Header: dr.a,v 1.2 88/04/07 17:02:49 mento Exp $
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.IP \fIdr_return\fP 1i
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Returns the result of the computation.
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ds Dy move or shrink
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.\" $Header: dxdy.a,v 1.3 88/08/04 11:11:24 mento Exp $
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.IP \fIdx\fP 1i
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.br
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.ns
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.IP \fIdy\fP 1i
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Specify the x and y coordinates,
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which define the amount you want to \*(Dy the specified region.
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.\" $Header: r.a,v 1.1 88/02/26 10:29:50 mento Exp $
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.IP \fIr\fP 1i
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Specifies the region.
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.IP \fIrectangle\fP 1i
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Specifies the rectangle.
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.\" $Header: srasrb.a,v 1.1 88/02/26 10:31:19 mento Exp $
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.IP \fIsra\fP 1i
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.br
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.ns
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.IP \fIsrb\fP 1i
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Specify the two regions with which you want to perform the computation.
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.IP \fIsrc_region\fP 1i
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Specifies the source region to be used.
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.SH DESCRIPTION
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.\" $Header: XInterReg.d,v 1.1 88/02/26 10:48:58 mento Exp $
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The
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.ZN XIntersectRegion
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function computes the intersection of two regions.
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.LP
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.\" $Header: XUnionRegion.d,v 1.1 88/02/26 10:51:31 mento Exp $
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The
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.ZN XUnionRegion
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function computes the union of two regions.
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.LP
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The
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.ZN XUnionRectWithRegion
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function updates the destination region from a union of the specified rectangle
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and the specified source region.
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.LP
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.\" $Header: XSubtractReg.d,v 1.3 88/08/20 10:20:59 mento Exp $
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The
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.ZN XSubtractRegion
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function subtracts srb from sra and stores the results in dr_return.
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.LP
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.\" $Header: XXorRegion.d,v 1.1 88/02/26 10:51:39 mento Exp $
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The
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.ZN XXorRegion
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function calculates the difference between the union and intersection
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of two regions.
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.LP
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.\" $Header: XOffsetReg.d,v 1.1 88/02/26 10:49:23 mento Exp $
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The
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.ZN XOffsetRegion
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function moves the specified region by a specified amount.
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.LP
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.\" $Header: XShrinkReg.d,v 1.2 88/06/11 07:53:39 mento Exp $
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The
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.ZN XShrinkRegion
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function reduces the specified region by a specified amount.
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Positive values shrink the size of the region,
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and negative values expand the region.
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.SH "SEE ALSO"
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XCreateRegion(3X11),
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XDrawRectangle(3X11),
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XEmptyRegion(3X11)
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.br
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\fI\*(xL\fP
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