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[Delphi] GetDC problem

Cheat Engine Forum Index -> General programming

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Reak
I post too much

Reputation: 0

Joined: 15 May 2007
Posts: 3496

Posted: Sat Oct 20, 2007 1:17 pm Post subject: [Delphi] GetDC problem

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hello guYsSssS,

I got a problem with GetDC, I wanna check some colors, here's an example:

Code:

procedure TForm1.Timer1Timer(Sender: TObject);
var
DCanvas: TCanvas;
DHandle: HDC;
begin
DHandle:=GetDC(0);
if DHandle<>0 then
begin
try
DCanvas:=TCanvas.Create;
try
DCanvas.Handle:=DHandle;
if DCanvas.Pixels[293, 335] = RGB(239, 239, 239 )
then
begin
Timer1.Enabled := false;
Timer2.Enabled := false;

Label4.Caption := inicurrent;
Label4.Visible := true;
Label5.Visible := true;

if Checkbox1.Checked = true then
PlaySound(PChar('sound_001.wav'),0,SND_ASYNC or SND_LOOP);

ShowMessage (inicurrent);
PlaySound(nil,0,0);
end
finally
DCanvas.Free;
end;
finally
if ReleaseDc(0, DHandle)<>1 then
RaiseLastOSError;
end;
end
else
RaiseLastOSError;
end;

[For those who don't understand what this does: it can check colors on the entire screen.]

Well it does it on the entire screen cuz I seted GetDc's value to NULL/0.
But for example I wanna do that it's just checking in MapleStory. So:

Code:

procedure TForm1.Timer1Timer(Sender: TObject);
var
DCanvas: TCanvas;
DHandle: HDC;
damn: HWND;
begin
damn := FindWindow(NIL, 'MapleStory');
DHandle:=GetDC(damn);
if DHandle<>0 then
begin
try
DCanvas:=TCanvas.Create;
try
DCanvas.Handle:=DHandle;
if DCanvas.Pixels[293, 335] = RGB(239, 239, 239 )
then
begin
Timer1.Enabled := false;
Timer2.Enabled := false;

Label4.Caption := inicurrent;
Label4.Visible := true;
Label5.Visible := true;

if Checkbox1.Checked = true then
PlaySound(PChar('sound_001.wav'),0,SND_ASYNC or SND_LOOP);

ShowMessage (inicurrent);
PlaySound(nil,0,0);
end
finally
DCanvas.Free;
end;
finally
if ReleaseDc(0, DHandle)<>1 then
RaiseLastOSError;
end;
end
else
RaiseLastOSError;
end;

But why does it still dedect (the color) on my DESKTOP ?

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HolyBlah
Master Cheater

Reputation: 2

Joined: 24 Aug 2007
Posts: 446

Posted: Sat Oct 20, 2007 1:39 pm Post subject:

gameguard block you

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Reak
I post too much

Reputation: 0

Joined: 15 May 2007
Posts: 3496

Posted: Sat Oct 20, 2007 1:41 pm Post subject:

no, thats not the problem, if I use GetDc with maplestorys window so it should't check the colors on the desktop, but it does still.

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