Intelligent Screen Saver

namespace dshow.Core
{
	using System;
	using System.Runtime.InteropServices;

	// IVideoWindow interface
	//
	// The IVideoWindow interface sets properties on the video window.
	// Applications can use it to set the window owner, the position
	// and dimensions of the window, and other properties.
	//
	[ComImport,
	Guid("56A868B4-0AD4-11CE-B03A-0020AF0BA770"),
	InterfaceType(ComInterfaceType.InterfaceIsDual)]
	internal interface IVideoWindow
	{
		// Sets the text caption on the playback window
		[PreserveSig]
		int put_Caption(
			string caption);
		// Retrieves the text caption on the playback window
		[PreserveSig]
		int get_Caption(
			[Out] out string caption);

		// Sets the playback window style
		[PreserveSig]
		int put_WindowStyle(
			int windowStyle);
		// Retrieves the window style of the video window
		[PreserveSig]
		int get_WindowStyle(
			out int windowStyle);

		// Sets the style of the control window
		[PreserveSig]
		int put_WindowStyleEx(
			int windowStyleEx);
		// Retrieves the extended style of the video window
		[PreserveSig]
		int get_WindowStyleEx(
			out int windowStyleEx);

        // Specifies if the window will be automatically shown on
		// the first state change
		[PreserveSig]
		int put_AutoShow(
			[In, MarshalAs(UnmanagedType.Bool)] bool autoShow);
		// Retrieves information about whether the window
		// will be automatically shown
		[PreserveSig]
		int get_AutoShow(
			[Out, MarshalAs(UnmanagedType.Bool)] out bool autoShow);
        
		// Sets the current window state (such as visible or minimized)
		[PreserveSig]
		int put_WindowState(
			int windowState);
		// Retrieves the current window state (such as visible or minimized)
		[PreserveSig]
		int get_WindowState(
			out int windowState);

		// Informs the renderer to realize its palette in the background
		[PreserveSig]
		int put_BackgroundPalette(
			int backgroundPalette);
		// Retrieves information about whether any palette required
		// will be realized in the background
		[PreserveSig]
		int get_BackgroundPalette(
			out int backgroundPalette);
        
		// Sets the visibility of the window
		[PreserveSig]
		int put_Visible(
			[In, MarshalAs(UnmanagedType.Bool)] bool visible);
		// Retrieves the visibility of the window
		[PreserveSig]
		int get_Visible(
			[Out, MarshalAs(UnmanagedType.Bool)] out bool visible);

        // Sets the x-axis coordinate for the video window
		[PreserveSig]
		int put_Left(
			int left);
		// Retrieves the x-axis coordinate for the video window
		[PreserveSig]
		int get_Left(
			out int left);

        // Sets the width of the video window
		[PreserveSig]
		int put_Width(
			int width);
		// Retrieves the width of the video window
		[PreserveSig]
		int get_Width(
			out int width);
        
		// Sets the y-axis coordinates for the video window
		[PreserveSig]
		int put_Top(
			int top);
		// Retrieves the y-axis coordinates for the video window
		[PreserveSig]
		int get_Top(
			out int top);
        
		// Sets the height of the video window
		[PreserveSig]
		int put_Height(
			int height);
		// Retrieves the height of the video window
		[PreserveSig]
		int get_Height(
			out int height);
        
		// Sets the owning parent window for the video playback window
		[PreserveSig]
		int put_Owner(
			IntPtr owner);
		// Retrieves the owning parent window for the video playback window
		[PreserveSig]
		int get_Owner(
			out IntPtr owner);
        
		// Specifies a window to which the video window will post messages
		[PreserveSig]
		int put_MessageDrain(
			IntPtr drain);
		// Retrieves the window set to receive messages from the video window
		[PreserveSig]
		int get_MessageDrain(
			out IntPtr drain);
        
		// Retrieves the border color for the video window
		[PreserveSig]
		int get_BorderColor(
			out int color);
		// Sets the border color for the video window
		[PreserveSig]
		int put_BorderColor(
			int color);
        
		// Retrieves the full-screen rendering mode of the video
		// renderer filter supporting this interface
		[PreserveSig]
		int get_FullScreenMode(
			[Out, MarshalAs(UnmanagedType.Bool)] out bool fullScreenMode);
		// Sets the full-screen mode for the video renderer
		// filter supporting this interface
		[PreserveSig]
		int put_FullScreenMode(
			[In, MarshalAs(UnmanagedType.Bool)] bool fullScreenMode);
        
		// Tells the renderer filter to become the foreground window
		[PreserveSig]
		int SetWindowForeground( int focus );
        
		// Forwards messages that have been received by a
		// parent window to a child window owned by a filter
		[PreserveSig]
		int NotifyOwnerMessage(
			IntPtr hwnd,
			int msg,
			IntPtr wParam,
			IntPtr lParam);
        
		// Sets the video window position on the display
		[PreserveSig]
		int SetWindowPosition(
			int left,
			int top,
			int width,
			int height);
        
		// Retrieves the video window position
		[PreserveSig]
		int GetWindowPosition(
			out int left,
			out int top,
			out int width,
			out int height);
        
		// Retrieves the ideal minimum image size for the
		// video image playback (client) area
		[PreserveSig]
		int GetMinIdealImageSize(
			out int width,
			out int height);
        
		// Retrieves the ideal maximum image size for the
		// video image playback (client) area
		[PreserveSig]
		int GetMaxIdealImageSize(
			out int width,
			out int height);
        
		// Retrieves the normal restored window dimensions
		[PreserveSig]
		int GetRestorePosition(
			out int left,
			out int top,
			out int width,
			out int height);
        
		// Hides the cursor
		[PreserveSig]
		int HideCursor(
			[In, MarshalAs(UnmanagedType.Bool)] bool hideCursor);
        
		// Determines if the cursor is hidden or showing
		[PreserveSig]
		int IsCursorHidden(
			[Out, MarshalAs(UnmanagedType.Bool)] out bool hideCursor);
	}
}