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02.19.2008 at 09:51AM PST, ID: 23175094
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Getting Control Key State

Tags: Delphi 7
I am using RegisterHotKey to create hotkey shortcuts that will work across other applications.  This works fine and I can intercept hotkey presses in my application even when a different thread has the focus.

However I need to wait until control keys are released before I execute the code and therefore need to read the control key status even when my application doesnt have focus.

I have tried using
function CtrlDown : Boolean;
var
   State : TKeyboardState;
begin
   GetKeyboardState(State) ;
   Result := ((State[vk_Control] And 128) <> 0) ;
end;

However this doesnt work for me.  This only seems to work when my application has the focus.

Can anyone suggest how my application can read control key states where another application has the focus?
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Question Stats
Zone: Programming
Question Asked By: peterharris
Solution Provided By: jkr
Participating Experts: 1
Solution Grade: A
Views: 14
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02.19.2008 at 10:31AM PST, ID: 20931119

Rank: Genius

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02.19.2008 at 10:41AM PST, ID: 20931234

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02.19.2008 at 01:59PM PST, ID: 20933071

Rank: Genius

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02.19.2008 at 03:06PM PST, ID: 20933507

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02.19.2008 at 03:14PM PST, ID: 20933562

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