DC for another program

Sorry --- I'm new to programming and I teach myself everything.....

How do you get the DC for another application's client area?

Code:

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HANDLE hProgman, hDesktop, hDesktopListView;

//Get Window Handle
hProgman = FindWindow("Progman", 0);
hDesktop = FindWindowEx(hProgman, 0, "SHELLDLL_DefView", 0);
hDesktopListView = FindWindowEx(hDesktop, 0, "SysListView32", 0);

HDC hDC;
//Get DC From selected Window Handle
hDC = GetDC(hDesktopListView);

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i hope this helps.

Don't forget to release the DC after you have used it.

Oh thank you guys so much. I really appreciate your comments and help. ;) ---- I can see that this is a good site already