Simulate the tab key

Simulate the tab key (22:35:29) selectnext (activecontrol, true, true ); Block the Alt + F4 shutdown key (22:35:39) to start some programs. You can use the Alt + F4 key to quickly exit the program. However, if you are creating a screen saver, this convenience will become a stumbling block, so it is necessary to make the function key ineffective. Therefore, we use the form onkeydown event to detect the strike key:
ProcedureTform1.formkeydown (Sender: tobject;VaRKey: word; shift: tshiftstate );
Begin
If(SsaltInShift)And(Key = 115)Then 
Key: = 0;
End;


From Weizhi note (wiz)