限制按键事件 [英] Restrict Keydown Events

问题描述

大家好，

我已使用按键按下事件来修复某些事件的快捷方式.

其实我有F4的固定代码.但是当我按Ctrl + F4的时候，Shift + F4的时间
也可以执行F4代码.

如何限制呢?

谢谢&Regards，
Pal

Hi All,

I have used key down event to fix shortcut for some events.

Actually I have Fixed code for F4. But when I press Ctrl+F4,Shift +F4 that time
also that F4 code gets executed.

How to restrict this?

Thanks &Regards ,
Pal

推荐答案

嗨palraj001，

我认为这可能对您有帮助:

Hi palraj001,

I think this may help you:

private void textBox1_KeyDown(object sender, KeyEventArgs e)
        {

            if (e.KeyCode == Keys.F4 || (e.KeyCode == Keys.F4 && Control.ModifierKeys == Keys.Control) || (e.KeyCode == Keys.F4 && Control.ModifierKeys == Keys.Alt) || (e.KeyCode == Keys.F4 && Control.ModifierKeys == Keys.Control && Control.ModifierKeys == Keys.Alt))
            {
                //doNothing();
            }
            else
            {
                //DoStuff();
            }

        }

上面的示例在与修饰符的每种组合中都限制了F4键.

快乐编码:)

The example above restricts F4 key in every combination with modifiers.

Happy Coding :)

这篇关于限制按键事件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！