private void DoTheBlur()
{
if (!_blurValues.EnableBlur)
{
// Has blur been turned off ?
return;
}
_visualBlur = new VisualBlur(_blurValues);
Rectangle clientRectangle = CommonHelper.RealClientRectangle(_parentForm.Handle);
_visualBlur.SetTargetRect(_parentForm.DesktopLocation, clientRectangle);
Rectangle targetRect = _visualBlur.TargetRect;
Bitmap bmp = TakeSnapshot(targetRect);
_visualBlur.UpdateBlur(bmp);
PI.SetWindowPos(_visualBlur.Handle, PI.HWND_TOPMOST,
//PI.SetWindowPos(_visualBlur.Handle, _parentForm.Handle,
targetRect.X, targetRect.Y, targetRect.Width, targetRect.Height,
PI.SWP_.NOACTIVATE
| PI.SWP_.NOREDRAW
| PI.SWP_.SHOWWINDOW
| PI.SWP_.NOCOPYBITS
//| PI.SWP_.NOOWNERZORDER
);
_detectIsActiveTimer.Enabled = true;
}
private void RemoveBlur()
{
_detectIsActiveTimer.Enabled = false;
if (_visualBlur != null)
{
_visualBlur.Visible = false;
_visualBlur.Dispose();
_visualBlur = null;
}
}
internal void TakeSnapshot()
{
_currentFormDisplay?.Dispose();
if (!_blurValues.BlurWhenFocusLost ||
_parentForm.IsDisposed ||
_parentForm.Disposing
)
{
// Has blur been turned off ?
_currentFormDisplay = null;
return;
}
Rectangle clientRectangle = CommonHelper.RealClientRectangle(_parentForm.Handle);
_currentFormDisplay = TakeSnapshot(VisualBlur.GetTargetRectangle(_parentForm.DesktopLocation, clientRectangle));
}
private void RemoveBlur()
{
if (!_parentForm.IsDisposed &&
!_parentForm.Disposing &&
_parentBeforeOpacity.HasValue
)
{
_parentForm.Opacity = _parentBeforeOpacity.Value;
_parentBeforeOpacity = null;
}
_detectIsActiveTimer.Enabled = false;
if (_visualBlur != null)
{
_visualBlur.Visible = false;
_visualBlur.Dispose();
_visualBlur = null;
}
}
private void DoTheBlur()
{
if (!_blurValues.BlurWhenFocusLost ||
_parentForm.IsDisposed ||
_parentForm.Disposing
)
{
// Has blur been turned off ?
return;
}
_visualBlur = new VisualBlur(_blurValues);
Rectangle clientRectangle = CommonHelper.RealClientRectangle(_parentForm.Handle);
_visualBlur.SetTargetRect(_parentForm.DesktopLocation, clientRectangle);
Rectangle targetRect = _visualBlur.TargetRect;
_visualBlur.UpdateBlur(_currentFormDisplay);
// As UpdateBlur can take a few moments, then it is possible for the app to be closed before getting to the next line
if ((_visualBlur == null) ||
_parentForm.IsDisposed ||
_parentForm.Disposing
)
{
return;
}
PI.SetWindowPos(_visualBlur.Handle, PI.HWND_TOP, //.HWND_TOPMOST,
//PI.SetWindowPos(_visualBlur.Handle, _parentForm.Handle,
targetRect.X, targetRect.Y, targetRect.Width, targetRect.Height,
PI.SWP_.NOACTIVATE
| PI.SWP_.NOREDRAW
| PI.SWP_.SHOWWINDOW
| PI.SWP_.NOCOPYBITS
//| PI.SWP_.NOOWNERZORDER
);
// Set parent form opacity afterwards to prevent flicker
_parentBeforeOpacity ??= _parentForm.Opacity;
_parentForm.Opacity = _blurValues.Opacity / 100.0;
_detectIsActiveTimer.Enabled = true;
}