protected override void WndProc(ref Message m)
{
FormWindowState?newWindowState = null;
if (m.Msg == WinUserConstants.WmSysCommand)
{
int wParam = m.WParam.ToInt32() & 0xFFF0;
if (wParam == WinUserConstants.ScMinimize || wParam == WinUserConstants.ScMaximize || wParam == WinUserConstants.ScRestore)
{
newWindowState = TranslateWindowState(wParam);
}
}
if (newWindowState != null)
{
EventHandler <WindowStateChangingEventArgs>?eventHandler = WindowStateChanging;
if (eventHandler != null)
{
var args = new WindowStateChangingEventArgs(newWindowState.Value);
eventHandler(this, args);
if (args.Cancel)
{
return;
}
}
}
base.WndProc(ref m);
if (newWindowState != null)
{
WindowStateChanged?.Invoke(this, EventArgs.Empty);
}
}
protected override void WndProc(ref Message m)
{
FormWindowState? newWindowState = null;
if (m.Msg == WinUserConstants.WmSysCommand)
{
int wParam = m.WParam.ToInt32() & 0xFFF0;
if (wParam == WinUserConstants.ScMinimize || wParam == WinUserConstants.ScMaximize ||
wParam == WinUserConstants.ScRestore)
{
newWindowState = TranslateWindowState(wParam);
}
}
if (newWindowState != null)
{
EventHandler<WindowStateChangingEventArgs> eventHandler = WindowStateChanging;
if (eventHandler != null)
{
var args = new WindowStateChangingEventArgs(newWindowState.Value);
eventHandler(this, args);
if (args.Cancel)
{
return;
}
}
}
base.WndProc(ref m);
if (newWindowState != null)
{
WindowStateChanged?.Invoke(this, EventArgs.Empty);
}
}
