how to capture a part of the screen from second monitor

[SlimGradey]

hello all,
i made an app to save part of my screen to a jpeg... it works great on single monitor... but if i pass a rect thats not within the main monitor the image will be black... anyone know they easy way to get part of the screen on any monitor... thx...

[PumpoBee]

So how do you get the second monitor screen ?

[SlimGradey]

this the code i use to take snap shot of my screen and crop it to the rect i want.. then save as jpeg...
works fine on single monitor... how can i change this to work on dual monitors...

	HDC WinDC;
	HDC CopyDC;
	HBITMAP hBitmap;
	ULONG bWidth,bHeight;
	WinDC = ::GetDC(NULL);
	CopyDC = CreateCompatibleDC(WinDC);

	bWidth =  GetDeviceCaps(WinDC, HORZRES);
	bHeight = GetDeviceCaps(WinDC, VERTRES);

	hBitmap = CreateCompatibleBitmap(WinDC,bWidth,bHeight);

	SelectObject(CopyDC,hBitmap);

	BitBlt(CopyDC,0,0,bWidth,bHeight,WinDC,0,0,SRCCOPY);

	::ReleaseDC(NULL,WinDC);
	DeleteDC(CopyDC);


	HDC hSrc = CreateCompatibleDC(NULL);
	SelectObject(hSrc,hBitmap);
	HDC hNew = CreateCompatibleDC(hSrc);
	HBITMAP hBmp = CreateCompatibleBitmap(hSrc,width,height);
	HBITMAP hOld = (HBITMAP)SelectObject(hNew,hBmp);
	BitBlt(hNew,0,0,width,height,hSrc,left,top, SRCCOPY);
	SelectObject(hNew,hOld);

       //code to save jpeg here....

	DeleteDC(hSrc);
	DeleteDC(hNew);
	DeleteObject(hOld);
	DeleteObject(hBmp);
	DeleteObject(hBitmap);

[SlimGradey]

i still need help with this...
trying find way to get bitmap of the second monitor...
and make it work in the code above...
thx...

[koan]

Explanation of microsoft about multiple monitors