XmDropSiteStartUpdate is used in conjunction with XmDropSiteEndUpdate to process updates to multiple drop sites within the same shell widget. XmDropSiteStartUpdate and XmDropSiteEndUpdate signal the beginning and the end respectively of a series of calls to XmDropSiteUpdate. Calls to XmDropSiteStartUpdate and XmDropSiteEndUpdate can be recursively stacked. Using these routines optimizes the processing of update information.
- Specifies the ID of any widget within a given hierarchy. The function uses this widget to identify the shell that contains the drop sites.
For a complete definition of DropSite and its associated resources, see XmDropSite(3).