// Create compatible device contexts HDC hdcSrc = CreateCompatibleDC(NULL); HDC hdcDst = CreateCompatibleDC(NULL); // Load bitmap into source DC HBITMAP hBitmap = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_BITMAP)); SelectObject(hdcSrc, hBitmap); // Get dimensions of bitmap BITMAP bmp; GetObject(hBitmap, sizeof(BITMAP), &bmp); // Perform BitBlt transfer BitBlt(hdcDst, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcSrc, 0, 0, SRCCOPY); // Cleanup DeleteDC(hdcSrc); DeleteDC(hdcDst);In this example, we create two compatible device contexts, load a bitmap into the source context, get the dimensions of the bitmap, and transfer the bitmap data from the source context to the destination context using BitBlt. The library used in this code is the Win32 API. Overall, CDC BitBlt is a powerful function that allows developers to manipulate graphical data and create various visual effects in their applications.