using (var dc = new DeviceContext()) { // use the device context here } // the Dispose method will be called automatically at the end of the using block
var dc = new DeviceContext(); // use the device context here dc.Dispose(); // release the resources used by the device context
var hwnd = new IntPtr(hWnd); // hWnd is a window handle obtained from somewhere var hdc = Win32.GetDC(hwnd); // Win32 is a package/library that provides access to Windows API functions using (var dc = DeviceContext.FromHdc(hdc)) { // use the device context here } // the Dispose method will be called automatically at the end of the using block Win32.ReleaseDC(hwnd, hdc);In this example, we obtain a device context from a window handle using the Win32.GetDC function and create a DeviceContext object from it. After using the device context, we call its Dispose method and release the handle using the Win32.ReleaseDC function. The Win32 package/library is used to access Windows API functions that are not available in the .NET framework.