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Numlock & Caps lock  (Easy)

Posted on 1998-08-08
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Last Modified: 2010-04-04

How can i check the state of Numlock & Caps lock keys?

Thanks!!
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Question by:dia050398
  • 2
3 Comments
 
LVL 8

Accepted Solution

by:
ZifNab earned 70 total points
ID: 1361742
Hi dia,

function LowOrderBitSet( Value: integer ): boolean;
begin
 Result := (Value and 1 > 0);
end;

function CapsLock : boolean;
begin
 if LowOrderBitSet(GetKeyState(VK_CAPITAL))then Result := True
 else Result := False;
end;

function InsertOn: boolean;
 { Returns the status of the Insert key.    }
begin
 if LowOrderBitSet(GetKeyState(VK_INSERT))then Result := True
  else Result := False;
end;

function NumLock : boolean;
begin
 if LowOrderBitSet(GetKeyState(VK_NUMLOCK))then Result := True
  else Result := False;
end;

function ScrollLock : boolean;
begin
 if LowOrderBitSet(GetKeyState(VK_SCROLL))then Result := True
 else Result := False;
end;

This is a way.

Regards, Zif.
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Author Comment

by:dia050398
ID: 1361743
Sometimes Numlock Doesn´t work
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1361744
weird... can you check when exactely?
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