ガラスウィンドウ - Neroli

2011/04/07 00:18 Thu

ガラスウィンドウ

[StructLayout(LayoutKind.Sequential)]
public struct MARGINS
{
	/// <summary>
	/// 
	/// </summary>
	public int cxLeftWidth;      // width of left border that retains its size
	/// <summary>
	/// 
	/// </summary>
	public int cxRightWidth;     // width of right border that retains its size
	/// <summary>
	/// 
	/// </summary>
	public int cyTopHeight;      // height of top border that retains its size
	/// <summary>
	/// 
	/// </summary>
	public int cyBottomHeight;   // height of bottom border that retains its size
};
 
[DllImport("DwmApi.dll")]
public static extern int DwmExtendFrameIntoClientArea( IntPtr hwnd, ref MARGINS pMarInset);
 
/// <summary>
/// ガラスウィンドウ
/// </summary>
/// <param name="window"></param>
static	public	void	SetGlassWindowStyle( Window window )
{
	try
	{
		// Obtain the window handle for WPF application
		IntPtr mainWindowPtr = new WindowInteropHelper(window).Handle;
		HwndSource mainWindowSrc = HwndSource.FromHwnd(mainWindowPtr);
		mainWindowSrc.CompositionTarget.BackgroundColor = Color.FromArgb(0, 0, 0, 0);
 
		// Get System Dpi
		System.Drawing.Graphics desktop = System.Drawing.Graphics.FromHwnd(mainWindowPtr);
		float DesktopDpiX = desktop.DpiX;
		float DesktopDpiY = desktop.DpiY;
 
		// Set Margins
		WindowUtility.MARGINS margins = new WindowUtility.MARGINS();
 
		// Extend glass frame into client area
		// Note that the default desktop Dpi is 96dpi. The  margins are
		// adjusted for the system Dpi.
/*
		margins.cxLeftWidth		= Convert.ToInt32(15 * (DesktopDpiX / 96));
		margins.cxRightWidth	= Convert.ToInt32(35 * (DesktopDpiX / 96));
		margins.cyTopHeight		= Convert.ToInt32(((int)50 + 5) * (DesktopDpiX / 96));
		margins.cyBottomHeight	= Convert.ToInt32(5 * (DesktopDpiX / 96));
*/
		margins.cxLeftWidth		= -1;
		margins.cxRightWidth	= -1;
		margins.cyTopHeight		= -1;
		margins.cyBottomHeight	= -1;
 
 
		int hr = WindowUtility.DwmExtendFrameIntoClientArea(mainWindowSrc.Handle, ref margins);
		//
		if (hr < 0)
		{
			//DwmExtendFrameIntoClientArea Failed
		}
	}
	// If not Vista, paint background white.
	catch (DllNotFoundException)
	{
		System.Windows.Application.Current.MainWindow.Background = Brushes.White;
	}
}
 

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