Stack around the variable 'info' was corrupted.

codebm 2010-10-04 06:37:20

新建个WIN32项目（非空），把这段代码覆盖原有的WndProc函数

在DEBUG就会Stack around the variable 'info' was corrupted.

求解





LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

	int wmId, wmEvent;

	PAINTSTRUCT ps;

	HDC hdc;

 //static BITMAPINFO info;

	switch (message)

	{

	case WM_COMMAND:

		wmId    = LOWORD(wParam);

		wmEvent = HIWORD(wParam);

		// 分析菜单选择:

		switch (wmId)

		{

		case IDM_ABOUT:

			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);

			break;

		case IDM_EXIT:

			

			{

				//

				//HDC hdcScreen = CreateDC(_T("DISPLAY"), NULL, NULL, NULL); 

				HDC hdcScreen = GetDC(NULL); 

				

				HDC hdc = GetDC(hWnd);

				//一个memory dc和一个bitmap(ddb)

				HDC hCompatibleDC = CreateCompatibleDC(hdcScreen);

				HBITMAP hBitMap = CreateCompatibleBitmap(hdcScreen, GetDeviceCaps(hdcScreen, HORZRES), GetDeviceCaps(hdcScreen, VERTRES));

				::SelectObject(hCompatibleDC, hBitMap);



				//拷贝surface的数据到bitmap里

				::BitBlt(hCompatibleDC, 0, 0, GetDeviceCaps(hdcScreen, HORZRES), GetDeviceCaps(hdcScreen, VERTRES), hdcScreen, 0, 0, SRCCOPY);

			



			

				//ddb->dib

				BITMAPINFO info;

				::memset(&info, 0, sizeof(info));

				info.bmiHeader.biBitCount = 4;

				info.bmiHeader.biSize = sizeof(info.bmiHeader);

				info.bmiHeader.biPlanes = 1;

				info.bmiHeader.biCompression = BI_RGB;

			

				info.bmiHeader.biWidth = GetDeviceCaps(hdcScreen, HORZRES);

				info.bmiHeader.biHeight = GetDeviceCaps(hdcScreen, VERTRES);

				char *buff = new char[GetDeviceCaps(hdcScreen, HORZRES) * GetDeviceCaps(hdcScreen, VERTRES) * 3];

				if(!GetDIBits(hCompatibleDC, hBitMap, 0, GetDeviceCaps(hdcScreen, VERTRES), buff, &info, DIB_PAL_COLORS))

					::MessageBox(hWnd, NULL, NULL, MB_OK);;

		

				//dib->surface



				SetDIBitsToDevice(hdc, 0, 0, GetDeviceCaps(hdcScreen, HORZRES), GetDeviceCaps(hdcScreen, VERTRES), 0, 0, 0, GetDeviceCaps(hdcScreen, VERTRES), buff, &info, DIB_PAL_COLORS);

/*	*/			

				//释放

				delete []buff;

				buff = 0;

				::DeleteDC(hCompatibleDC);

				::DeleteObject(hBitMap);

				ReleaseDC(hWnd, hdc);

				ReleaseDC(NULL, hdcScreen);



				//DeleteDC(hdcScreen);

			}//DestroyWindow(hWnd);





			break;

		default:

			return DefWindowProc(hWnd, message, wParam, lParam);

		}

		break;

	case WM_PAINT:

		hdc = BeginPaint(hWnd, &ps);

		// TODO: 在此添加任意绘图代码...

		EndPaint(hWnd, &ps);

		break;

	case WM_DESTROY:

		PostQuitMessage(0);

		break;

	default:

		return DefWindowProc(hWnd, message, wParam, lParam);

	}

	return 0;

}