delphi - Form OnDeactivate - need to determine which is the new Activated control -

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i have code shows search form specific dbgrid placed in another form (the caller form of tsearchgridform):

procedure tsearchgridform.formdeactivate(sender: tobject); begin   // pseudo   if newactivecontrol <> callerform.dbgrid     close; end;

the tsearchgridform activated caller form .show (not modal) , when deactivated want close/hide if new active control <> callerform.dbgrid.

only if user clicked on dbgrid on caller form search form should remain visible, otherwise need close it.

how can this?

delphi's tscreen object has events onactivecontrolchange , onactiveformchange. can set event handlers these monitor changes , react them.

see d7 online more info. there delphi vcl code examples of using both events.


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