Question

I need to detect OnMouseLeave event for TDateTimePicker component, but it doesn’t contain such event in events list. Is there a way to detect it manually?

Answer 1

You can unprotect CMMouseLeave procedure.

TDateTimePicker = class(ComCtrls.TDateTimePicker)   
   procedure CMMouseLeave(var Message: TMessage); message CM_MOUSELEAVE;  
 end;

 { TDateTimePicker }

 procedure TDateTimePicker.CMMouseLeave(var Message: TMessage);
 begin 
   {do something}; 
 end;