Inside Macintosh: OpenDoc Class Reference /

Part 1 - Classes and Methods / ODDispatcher

InvalidateFacetUnderMouse

Mac OS

The InvalidateFacetUnderMouse method sets the facet pointer, corresponding to the facet under the mouse, to kODNULL.

void InvalidateFacetUnderMouse ();

DISCUSSION

When a facet is removed, OpenDoc calls this method to set the facet pointer to kODNULL (that is, invalidate the cache) and the mouse region to an empty region. This method sets up the GetMouseRegion method (on its next call) to recompute which facet is under the mouse and send mouse-enter, mouse-within, or mouse-leave events, as required.

Your part can call this method to reset the mouse region to a 1-by-1 pixel area at the cursor position.

SEE ALSO

The ODDispatcher::GetMouseRegion method (page 118).
"Mouse-Up Tracking" on page 217 in OpenDoc Programmer's Guide.

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