How to catch ESC key press with WndProc?

Question

如何使用WndProc捕捉ESC KeyPress？

Answer 1

Another option (for forms):

protected override bool ProcessKeyPreview(ref System.Windows.Forms.Message m)
{
  int VK_ESCAPE = 27;
  if (m.Msg == Win32Constants.WM_KEYDOWN && (int)m.WParam == VK_ESCAPE)
  {
    // ...
  }
  return base.ProcessKeyPreview(ref m);
}

Answer 2

Why are you doing it this way? Why not set the PreviewKey property of the Form to true and set a global event handler for KeyUp and check it...

if (e.KeyCode == Keys.Esc){
   //...
}

Answer 3

您需要捕获WM_CHAR消息并检查WParam 。

Answer 4

（msg == WM_KEYDOWN）&&（wParam == VK_ESCAPE）...操作是c＃...抱歉，这是Win32 API方式