/// <devdoc>
/// Creates a DeviceContext object wrapping a memory DC compatible with the specified device.
/// </devdoc>
public static DeviceContext FromCompatibleDC(IntPtr hdc)
{
// If hdc is null, the function creates a memory DC compatible with the application's current screen.
// In this case the thread that calls CreateCompatibleDC owns the HDC that is created. When this thread is destroyed,
// the HDC is no longer valid.
IntPtr compatibleDc = IntUnsafeNativeMethods.CreateCompatibleDC(new HandleRef(null, hdc));
return(new DeviceContext(compatibleDc, DeviceContextType.Memory));
}