private static extern int GetWindowRect(IntPtr hwnd,
ref RECT lpRect);
/// <summary>
/// プレビュー画面を表示する
/// </summary>
private void startPreview(IntPtr pPreviewHnd)
{
RECT lpRect = new RECT();
bool bGetRect = Win32API.GetClientRect(pPreviewHnd, ref lpRect);
HwndSourceParameters sourceParams = new HwndSourceParameters("sourceParams");
sourceParams.PositionX = 0;
sourceParams.PositionY = 0;
sourceParams.Height = lpRect.Bottom - lpRect.Top;
sourceParams.Width = lpRect.Right - lpRect.Left;
sourceParams.ParentWindow = pPreviewHnd;
sourceParams.WindowStyle = (int)(WindowStyles.WS_VISIBLE | WindowStyles.WS_CHILD | WindowStyles.WS_CLIPCHILDREN);
// プレビュー画面では静音にする
MainPanel previewPanel = new MainPanel(true);
HwndSource winWPFContent = new HwndSource(sourceParams);
winWPFContent.Disposed += (s, e) =>
{
if (previewPanel != null)
previewPanel.PanelExit();
};
Canvas canvas = new Canvas();
canvas.Background = System.Windows.Media.Brushes.AliceBlue;
canvas.Width = sourceParams.Width;
canvas.Height = sourceParams.Height;
// capture desktop
Image img = new Image();
img.Source = Win32API.CaptureScreen();
Canvas.SetTop(img, 0);
Canvas.SetLeft(img, 0);
img.Width = sourceParams.Width; img.Height = sourceParams.Height;
canvas.Children.Add(img);
// movie panel
Canvas.SetTop(previewPanel, 0);
Canvas.SetLeft(previewPanel, 0);
previewPanel.Width = sourceParams.Width;
previewPanel.Height = sourceParams.Height;
canvas.Children.Add(previewPanel);
winWPFContent.RootVisual = canvas;
}
public static extern bool GetClientRect(IntPtr hWnd, ref RECT lpRect);
