VCheckScaleEvents

 
Name
  VCheckScaleEvents - checks events in the multi-resolution scales.
 
Synopsis
  VCheckScaleEvents(event_waiting)
  int *event_waiting;                   /*RETURN*/
 
Description
  VCheckScaleEvents checks events in the multi-resolution scales. 
VCheckScaleEvents checks for the events in the event queue. The events 
checked are MotionNotify, or Left or Middle button presses; if these events 
are detected, VCheckScaleEvents returns 1 to *event_waiting else 0 to
*event_waiting. This indicates that a new value has been selected by the 
user and updating for the previous value should be aborted.
 
Return Value
  0 - work successfully.
 
Parameters
  event_waiting - returns 1 to indicate there is an event waiting, and 0
         for no event waiting.
 
Side Effects
  None.
 
Entry Conditions
  A call to VSelectScaleVlaue should be active. During a call to the 
update function passed to VSelectScaleValue, calls to VCheckScaleEvents may 
be made. If an event is waiting, return to VSelectScaleValue.
 
Related Functions