public static void Fade(Form form, bool fadeIn)
{
if (fadeIn)
{
User32.AnimateWindow(form.Handle, 500, User32.AW_ACTIVATE | User32.AW_BLEND);
}
else
{
User32.AnimateWindow(form.Handle, 500, User32.AW_HIDE | User32.AW_BLEND);
}
//protected override void OnLoad(EventArgs e)
//{
// base.OnLoad(e);
// User32.AnimateWindow(this.Handle, 1000, AW_ACTIVATE | (_UseSlideAnimation ?
// AW_HOR_POSITIVE | AW_SLIDE : AW_BLEND));
//}
//protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
//{
// base.OnClosing(e);
// if (e.Cancel == false)
// {
// AnimateWindow(this.Handle, 1000, AW_HIDE | (_UseSlideAnimation ?
// AW_HOR_NEGATIVE | AW_SLIDE : AW_BLEND));
// }
//}
}
protected override void OnClosing(CancelEventArgs e)
{
if (this.hasFadeCompleted)
{
base.OnClosing(e);
return;
}
e.Cancel = true;
var hWnd = new WindowInteropHelper(this).Handle;
User32.AnimateWindow(hWnd, 1, AnimateWindowFlags.AW_BLEND | AnimateWindowFlags.AW_HIDE);
Task.Factory.StartNew(() =>
{
this.Dispatcher.Invoke(new Action(() =>
{
this.hasFadeCompleted = true;
this.Close();
}), DispatcherPriority.Normal);
});
}