Disable Winform in C #

In winform, some key interfaces are often controlled and cannot be closed by users. How can this be better?

By default, the form close function cannot be disabled in the system. However, sometimes we need this function to block system problems caused by user "casually" or accidental close.

In fact, the method is very simple. You only need to add the following code to the form to disable the form.

 

Protected override void WndProc (ref Message m)
{
Const int WM_SYSCOMMAND = 0x0112;

Const int SC _CLOSE = 0xF060;

 

If (m. Msg = WM_SYSCOMMAND & (int) m. WParam = SC _CLOSE)
{
Return;
}
Base. WndProc (ref m );
}

This method makes the form close button still exist, but the mouse operation close button does not respond. This method ensures that nothing is lost.