Exception when action.setEnabled(false) in IMenuListener

[yidabu]

this is an old problem I reported with dwt-win and dwtx, takes me a half day to found it.

class MyMenuListener: IMenuListener
{
     void menuAboutToShow(IMenuManager manager)
     {
     	action.setEnabled(false); // the gui not responsed
	action.setEnabled(true);  // no problem     
     }
}

tested with current dwt2(Windows), tango 0.99.8, build lib by Rake, build app by DMD 1.041

I removed all listeners, works now.








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