Widget Creation Library Standard Action Routines
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All of the standard callback functions have action routine
counterparts.  Actions can be invoked via the translation manager,
which provides a powerful and flexible mechanism for invoking functions
from the user interface.

Below is the complete list of standard action routines, and their
mapping to the standard Wc callback routines.  See the section
on `Widget Creation Library Standard Callbacks' for details on
the behaviors of the appropriate functions.

    WcCreateChildrenACT		WcCreateChildrenCB
    WcManageACT			WcManageCB
    WcUnmanageACT		WcUnmanageCB
    WcManageChildrenACT		WcManageChildrenCB
    WcUnmanageChildrenACT	WcUnmanageChildrenCB
    WcDestroyACT		WcDestroyCB
    WcSetValueACT		WcSetValueCB
    WcSetSensitiveACT		WcSetSensitiveCB
    WcSetInsensitiveACT		WcSetInsensitiveCB
    WcLoadResourceFileACT	WcLoadResourceFileCB
    WcTraceACT			WcTraceCB
    WcPopupACT			WcPopupCB
    WcPopupGrabACT		WcPopupGrabCB
    WcPopdownACT		WcPopdownCB
    WcMapACT			WcMapCB
    WcUnmapACT			WcUnamapCB
    WcSystemACT			WcSystemCB
    WcExitACT			WcExitCB

All the standard action routines are registered with the translation
manager by the WcRegisterWcActions function.  This function is called
from WcWidgetCreation(), so applications usually never need to call
WcRegisterWcActions.

The file WcActions.c contains the implementations of all the action
routines along with the function WcRegisterWcActions.  If your
application wants to register mode actions, you should either use
WcRegisterAction(), or better yet, copy WcRegisterWcActions and modify
to register your applications functions.  Register your action
functions before calling WcWidgetCreation.
