winform禁用标题栏

protected override void WndProc(ref Message m)
{
if (m.Msg == 0x112)
{
switch ((int)m.WParam)
{
//禁止双击标题栏关闭窗体
case 0xF063:
case 0xF093:
m.WParam = IntPtr.Zero;
break;

//禁止拖拽标题栏还原窗体
case 0xF012:
case 0xF010:
m.WParam = IntPtr.Zero;
break;

//禁止双击标题栏
case 0xf122:
m.WParam = IntPtr.Zero;
break;

////禁止关闭按钮
//case 0xF060:
// m.WParam = IntPtr.Zero;
// break;

//禁止最大化按钮
case 0xf020:
m.WParam = IntPtr.Zero;
break;

//禁止最小化按钮
case 0xf030:
m.WParam = IntPtr.Zero;
break;

//禁止还原按钮
case 0xf120:
m.WParam = IntPtr.Zero;
break;
}
}
base.WndProc(ref m);
}