在窗体最小化时检测按键。

问题描述

我创建了一个Windows窗体按键应用程序。我正在使用F3，F4，F5按键进行某些操作。但是当表单最小化时，按键不起作用。它应该在表单最小化时工作。如何在C＃中解决这个问题。

I created one windows form keypress application.And I am using F3,F4,F5 keypress for some operation. But keypress is not working while form is minimised. It should work when form is minimised.How to fix this problem in C#.

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
       {
               this.WindowState = FormWindowState.Minimized;

               oWord.Visible = true;
               if (keyData == Keys.F3)
               {
                   this.WindowState = FormWindowState.Minimized;
                   CaptureWithTaskBar();
                   this.WindowState = FormWindowState.Normal;
               }
               else if (keyData == Keys.F4)
               {
                   this.WindowState = FormWindowState.Minimized;
                   CaptureWithoutTaskBar();
                   this.WindowState = FormWindowState.Normal;
               }
               else if (keyData == Keys.F5)
               {
                   SaveDocument();
               }
}

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