在C＃中切换状态 - WPF [英] Toggle state in C# - WPF

问题描述

你好，

当我按一个键时，我想让一个功能工作在切换（切换）模式，我真的无法想象如何做到这一点。我尝试了很多方法，只有RegisterHotKey方法才能正常工作。但是RegisterHotKey正在覆盖游戏中的映射键，这不是我需要的。所以我正在尝试使用GetKeyState。无论我改变什么，它下面的代码只适用于一个位置......：

Hello,
I want to make a function to work in toggle(switch) mode when i press a key and i really can't figure how to do it. I tried lots of ways and only the "RegisterHotKey" method is working fine. But "RegisterHotKey" is overwriting the mapped key from the game and this is not what i need. So i'm trying to use "GetKeyState". The code below it's only working for one position no matter what i change...:

private void mw_KeyDown(object sender, KeyEventArgs e)
{
    bool toggle = true;

    bool sw = (toggle = !toggle);

    int tog = (GetKeyState(Key.Tab)); 

    if ((tog & 1) == 1)
    {
        if (sw)
        {
            System.Windows.MessageBox.Show("go to second position...!");
        }
    }
    else
    {
        System.Windows.MessageBox.Show("go to first position...!");
    }
}

任何想法或建议我该怎么做？



编辑：在使用MessageBox进行测试时，它运行正常...但是使用我的真实代码，它总是跳到第二部分并退出...：

Any idea or suggestion how can i do this ?

edit: On testing with MessageBox it's working fine...but with my real piece of code it's always jumping to the second part and exit...:

private void mw_KeyDown(object sender, EventArgs e)
{
    if (toggle)
    {
        byte[] byt = { 0xC7, 0x83, 0x1A, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        for (int i = 6; i < 10; ++i) { byt[i] = (byte)(atkSpd & 0xFF); atkSpd = atkSpd >> 8; }
        Write(vMemory + 8, byt, 10);
    }
    else
    {
        byte[] byt = { 0xC7, 0x83, 0x1A, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        for (int i = 6; i < 10; ++i) { byt[i] = (byte)(wepSpd & 0xFF); wepSpd = wepSpd >> 8; }
        Write(vMemory + 8, byt, 10);
    }
}

不执行循环的原因是什么？

谢谢，

What could be the reason for not executing the loop ?
Thank you,

推荐答案

你不应该检查关键状态（为什么？），你应该在某个控件或窗口上处理键盘事件。



例如：

You should not check the key state (why?), you should handle keyboard event on some control or window.

For example:

bool toggle;

//...

MyIUElement.KeyDown += (sender, eventArgs) => {
    if (eventArgs.Key == Key.Return) { // you can also check up eventArgs.KeyStates
    // or some other key: if (eventArgs.Key == SomeKeyOfYourChoice) ...
       toggle = !toggle;
       // depending on toggle, show it on UI
    } //if
}; //MyIUElement.KeyDown

您可以使用其他活动，不同的UI元素，不同的处理程序等。



请参阅：

http://msdn.microsoft.com/en-us/library/system.windows。 uielement.keydown.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system.windows.input.keyeventargs.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system .windows.uielement_events.aspx [ ^ ]。

-SA

You can use other events, different UI elements, different handlers, etc.

Please see:
http://msdn.microsoft.com/en-us/library/system.windows.uielement.keydown.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.input.keyeventargs.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.uielement_events.aspx[^].

—SA

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