我如何关掉Caps Lock键 [英] How do i Turn OFF the Caps lock key

问题描述

如何我关掉大写锁定在文本框键。我使用WPF的形​​式。

How do i Turn OFF the Caps lock key in textbox. I am using WPF forms.

在文本框的重点是我要关闭大写锁定。

When textbox is focused I want to turn off caps lock.

感谢

推荐答案

它很容易，首先添加命名空间

Its easy , Firstly add namespace

using System.Runtime.InteropServices;

然后在类中声明该

then declare this in the class

[DllImport("user32.dll")]
static extern void keybd_event(byte bVk, byte bScan, uint dwFlags,
UIntPtr dwExtraInfo);

最后，在textBox_Enter事件中添加以下代码

Finally , at textBox_Enter event add this code

private void textBox1_Enter(object sender, EventArgs e)
    {
        if (Control.IsKeyLocked(Keys.CapsLock)) // Checks Capslock is on
        {
            const int KEYEVENTF_EXTENDEDKEY = 0x1;
            const int KEYEVENTF_KEYUP = 0x2;
            keybd_event(0x14, 0x45, KEYEVENTF_EXTENDEDKEY, (UIntPtr)0);
            keybd_event(0x14, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,
            (UIntPtr)0);
        }
    }

此代码将关闭大写锁定..我有用它在输入事件时，可以根据您的要求添加！

this code will turn off the Capslock .. I have used it at the enter event you can add it according to your requirement!

结帐这个链接的这里

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