Manual Pages for UNIX Operating System command usage for man XtAddExposureToRegion

XT FUNCTIONS                           XtAddExposureToRegion(3xt)



NAME
     XtAddExposureToRegion - merge exposure events into a region

SYNTAX
     cc [ flag... ] file... -lXt [ library... ]

     void XtAddExposureToRegion(XEvent *event, Region region);

ARGUMENTS
     event     Specifies a pointer to the Expose or GraphicsEx-
               pose event.

     region    Specifies the region object (as defined in
               ).

DESCRIPTION
     The 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 Expose or GraphicsExpose event,
     XtAddExposureToRegion returns without an error and without
     modifying region.

     This function is used by the exposure compression mechanism
     (see Section 7.9.3).

SEE ALSO
     X Toolkit Intrinsics - C Language Interface
     Xlib - C Language X Interface


ATTRIBUTES
     See attributes(5) for descriptions of the following attri-
     butes:

     __________________________________________________________________
    |       ATTRIBUTE TYPE        |          ATTRIBUTE VALUE          |
    |_____________________________|___________________________________|
    | Availability                | x11/library/toolkit/libxt         |
    |_____________________________|___________________________________|
    | Interface Stability         | Committed                         |
    |_____________________________|___________________________________|
    | MT-Level                    | See XtToolkitThreadInitialize(3XT)|
    |_____________________________|___________________________________|











X Version 11        Last change: libXt 1.0.8                    1