Question

C# 禁用Alt+tab组合键和window那些组合键

private void Form1_KeyDown(object sender, KeyEventArgs e)
{ if ((e.Alt) && (e.KeyCode == Keys.F4))
{
//用这个判断可以， }
if ((Control.ModifierKeys & Keys.Alt) != 0 && e.KeyCode == Keys.Tab)
{
//但是这个不行， } }

Answer 1

private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if ((e.KeyCode == Keys.Control) && (e.KeyCode == Keys.F4))
{
e.Handled = true;
}
}