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Codebyte:
Alright so here it goes... I've been experimenting with creating macros based on pixel color changes... I'm not understanding why GetPixel() is returning 0 constantly when I have the target game open... I can see the cursor coordinates, but not the color value... What am I doing wrong? I need to find the color of the pixel underneath the cursor while in a full screen game window.

Here is my example I wrote in a couple minutes to output coordinates and color:


--- Code: C ---//------------------------------------------------------------------------------#include <windows.h>#include <iostream>//------------------------------------------------------------------------------using namespace std;//------------------------------------------------------------------------------int main(void){        HWND wowHandle = FindWindow(NULL, "World of Warcraft");        if(!wowHandle)        {                cout << "WoW is not open atm..." << endl;                system("pause");                return 0;        }        else        {                cout << "WoW is OPEN..." << endl;                ShowWindow(wowHandle, SW_SHOWNORMAL);                SetForegroundWindow(wowHandle);                                 while(1)                {                        POINT cursorPoint;                        GetCursorPos(&cursorPoint);                        COLORREF color = GetPixel(GetDC(wowHandle), cursorPoint.x, cursorPoint.y);                        system("cls");                        cout << "(" << cursorPoint.x << ", " << cursorPoint.y << ")" << endl;                        cout << "COLOR: " << color;                }               }        }//------------------------------------------------------------------------------
it's probably sloppy... don't hate on the 5 minute "im at work and in a hurry on my break" coding...

Codebyte:
nevermind... after doing some research I figured out that gameguard blocks the API calls and filters what is returned... this would make sense as to why its returning 0 for a color call...

f0dder:
nevermind... after doing some research I figured out that gameguard blocks the API calls and filters what is returned... this would make sense as to why its returning 0 for a color call...-Codebyte (February 12, 2010, 08:53 PM)
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I'd be a bit surprised if GetPixel worked, GameGuard/whatever or not, as soon as you're dealing with Direct3D (and possibly even DirectDraw) accelerated games.

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