private void OnCollageWindowClosed(object sender, EventArgs e)
{
PhotoCollageWindow senderWindow = (PhotoCollageWindow)sender;
_photoCollageWindows.Remove(senderWindow.WindowId);
//HwndSource source = HwndSource.FromHwnd(new WindowInteropHelper((Window)sender).Handle);
//source.RemoveHook(new HwndSourceHook(WndProc));
}
private void NewCollageWindow_Click(object sender, RoutedEventArgs e)
{
PhotoCollageWindow collageWindow = new PhotoCollageWindow(_dialogExtender);
collageWindow.WindowId = GetNextWindowId();
_photoCollageWindows.Add(collageWindow.WindowId, collageWindow);
collageWindow.Closed += new EventHandler(OnCollageWindowClosed);
collageWindow.Loaded += new RoutedEventHandler(collageWindow_Loaded);
collageWindow.Show();
}
/*
* private void LaunchWindow_Click(object sender, RoutedEventArgs e)
* {
* if (_photoCollageWindow == null)
* {
* _photoCollageWindow = new PhotoCollageWindow();
* }
*
* _photoCollageWindow.Show();
* }
*
* private void SaveWindowAsPhoto_Click(object sender, RoutedEventArgs e)
* {
* if (_photoCollageWindow != null)
* {
* _photoCollageWindow.SaveCollage("SavedImage.png");
* }
* else
* {
* MessageBox.Show("Create the PhotoCollageWindow by clicking Launch Window");
* }
* }
*
* private void UndoLastCommand_Click(object sender, RoutedEventArgs e)
* {
* if (_photoCollageWindow != null)
* _photoCollageWindow.Undo();
* }
*
* private void DisplayAdornment_Click(object sender, RoutedEventArgs e)
* {
* if (_photoCollageWindow != null)
* _photoCollageWindow.AddAdornement();
* }
* */
protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
{
//Do this for all existing collage windows
while (_photoCollageWindows.Count > 0)
{
//Get the first window key
string windowKey = _photoCollageWindows.Keys.FirstOrDefault(x => true);
//Get the window
PhotoCollageWindow photoCollageWindow = _photoCollageWindows[windowKey];
//Try closing the window
photoCollageWindow.Close();
//If window exists in the collection that means it was not closed
//Cancel closing the application
//We are subscribing to the window closed event below where this
//key will be removed from the collection.
if (_photoCollageWindows.ContainsKey(windowKey))
{
e.Cancel = true;
break;
}
}
base.OnClosing(e);
}