Question

是否可以让我的覆盖优先于系统范围，所以即使在运行Web浏览器，文字编辑器或绘图程序时（我的应用程序仍然会在后台运行或显然作为服务运行）

使用Visual C＃2010

我如何覆盖我的代码的示例：

protected override bool ProcessCmdKey(ref Message msg, Keys keyData) 
{
    if((keyData == (Keys.Control | Keys.C))
    {
         //your implementation
         return true;
    } 
    else if((keyData == (Keys.Control | Keys.V))
    {
         //your implementation
         return true;
    } 
    else 
    {
        return base.ProcessCmdKey(ref msg, keyData);
    }
}

Answer 1

你应该使用Global Hooks，Global Mouse and Keyboard Hook是一个很好的库，可以简化这个过程。这是一个基于你的问题的例子。

internal class KeyboardHook : IDisposable
{
    private readonly KeyboardHookListener _hook = new KeyboardHookListener(new GlobalHooker());

    public KeyboardHook()
    {
        _hook.KeyDown += hook_KeyDown;
        _hook.Enabled = true;
    }

    private void hook_KeyDown(object sender, KeyEventArgs e)
    {

        if (e.KeyCode ==  Keys.C && e.Control)
        {
            //your implementation
            e.SuppressKeyPress = true; //other apps won't receive the key
        }
        else if (e.KeyCode ==  Keys.V && e.Control)
        {
            //your implementation
            e.SuppressKeyPress = true; //other apps won't receive the key
        }
    }

    public void Dispose()
    {
        _hook.Enabled = false;
        _hook.Dispose();
    }
}

使用示例：

internal static class Program
{
    private static void Main()
    {
        using (new KeyboardHook())
            Application.Run();
    }
}

替换所有程序的Windows快捷方式

1 个答案: