//-----------------------------------------------------------------------------------------------------------------------
/// <summary>
/// Sets the wallpaper to the given <paramref name="fileName"/> for each monitor.
/// </summary>
///
/// <exception cref="COMException">Could not create or interact with the required COM object.</exception>
//-----------------------------------------------------------------------------------------------------------------------
public static void SetWallpaper(string fileName, DESKTOP_WALLPAPER_POSITION position)
{
if (mIDesktopWallpaper == null)
{
throw new COMException("Could not create IDesktopWallpaper COM object.");
}
try
{
// The first parameter indicates the monitor by its identifier (obtained with GetMonitorDevicePathAt) and the
// second a path to the wallpaper. If NULL is passed as the monitor identifier to SetWallpaper, then that
// wallpaper will be set for all monitors.
mIDesktopWallpaper.SetWallpaper(null, fileName);
mIDesktopWallpaper.SetPosition(position);
}
catch (COMException)
{
throw;
}
catch (Exception e)
{
throw new COMException("Could not interact with the IDesktopWallpaper COM object.", e);
}
}
internal static Fit ToFit(this DESKTOP_WALLPAPER_POSITION position)
{
return((Fit)position);
}
public HRESULT SetPosition(DESKTOP_WALLPAPER_POSITION position)
{
return(((delegate * unmanaged <IDesktopWallpaper *, DESKTOP_WALLPAPER_POSITION, int>)(lpVtbl[10]))((IDesktopWallpaper *)Unsafe.AsPointer(ref this), position));
}
