75 lines
2.5 KiB
Groff
75 lines
2.5 KiB
Groff
.\" Copyright 1993 X Consortium
|
|
.\"
|
|
.\" Permission is hereby granted, free of charge, to any person obtaining
|
|
.\" a copy of this software and associated documentation files (the
|
|
.\" "Software"), to deal in the Software without restriction, including
|
|
.\" without limitation the rights to use, copy, modify, merge, publish,
|
|
.\" distribute, sublicense, and/or sell copies of the Software, and to
|
|
.\" permit persons to whom the Software is furnished to do so, subject to
|
|
.\" the following conditions:
|
|
.\"
|
|
.\" The above copyright notice and this permission notice shall be
|
|
.\" included in all copies or substantial portions of the Software.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
.\" OTHER DEALINGS IN THE SOFTWARE.
|
|
.\"
|
|
.\" Except as contained in this notice, the name of the X Consortium shall
|
|
.\" not be used in advertising or otherwise to promote the sale, use or
|
|
.\" other dealings in this Software without prior written authorization
|
|
.\" from the X Consortium.
|
|
.\"
|
|
.ds tk X Toolkit
|
|
.ds xT X Toolkit Intrinsics \- C Language Interface
|
|
.ds xI Intrinsics
|
|
.ds xW X Toolkit Athena Widgets \- C Language Interface
|
|
.ds xL Xlib \- C Language X Interface
|
|
.ds xC Inter-Client Communication Conventions Manual
|
|
.ds Rn 3
|
|
.ds Vn 2.2
|
|
.hw XtAdd-Exposure-To-Region wid-get
|
|
.na
|
|
.TH XtAddExposureToRegion __libmansuffix__ __xorgversion__ "XT FUNCTIONS"
|
|
.SH NAME
|
|
XtAddExposureToRegion \- merge exposure events into a region
|
|
.SH SYNTAX
|
|
#include <X11/Intrinsic.h>
|
|
.HP
|
|
void XtAddExposureToRegion(XEvent *\fIevent\fP, Region \fIregion\fP);
|
|
.SH ARGUMENTS
|
|
.IP \fIevent\fP 1i
|
|
Specifies a pointer to the
|
|
.B Expose
|
|
or
|
|
.B GraphicsExpose
|
|
event.
|
|
.IP \fIregion\fP 1i
|
|
Specifies the region object (as defined in
|
|
.BR <X11/Xutil.h> ).
|
|
.SH DESCRIPTION
|
|
The
|
|
.B XtAddExposureToRegion
|
|
function computes the union of the rectangle defined by the exposure
|
|
event and the specified region.
|
|
Then, it stores the results back in region.
|
|
If the event argument is not an
|
|
.B Expose
|
|
or
|
|
.B GraphicsExpose
|
|
event,
|
|
.B XtAddExposureToRegion
|
|
returns without an error and without modifying region.
|
|
.LP
|
|
This function is used by the exposure compression mechanism
|
|
(see Section 7.9.3).
|
|
.SH "SEE ALSO"
|
|
.br
|
|
\fI\*(xT\fP
|
|
.br
|
|
\fI\*(xL\fP
|