C# winfrom 修改系统快捷键 提高效率 把难按的快捷 换成容易按的快捷键 减轻工作难度

提高效率 把难按的快捷 换成容易按的快捷键 减轻工作难度 

修改系统快捷键 

把复制 换成 F1

粘贴  F2 

系统的win Shift +S 截图 换成 F4   其他的截图软软件 收费 一般大公司不让用

保存F5

F1+1 取消 关闭快捷键

      // 导入 Windows API 函数
[DllImport("user32.dll")]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);
[DllImport("user32.dll")]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
[DllImport("user32.dll")]
private static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);

// 定义快捷键的标识符
private const int HOTKEY_F1_ID = 0; // 新增 F1 的标识符
private const int HOTKEY_F5_ID = 1; // 修改为 F5 的标识符
private const int HOTKEY_F2_ID = 2;
private const int HOTKEY_F3_ID = 3;
private const int HOTKEY_F4_ID = 4;

// 定义 F1、F2、F3 和 F4 键的虚拟键码
private const uint VK_F1 = 0x70; // 新增 F1 的虚拟键码
 private const uint VK_1 = 0x31; // 1 键的虚拟键码
private const uint VK_F5 = 0x74; // 修改为 F5 的虚拟键码
private const uint VK_F2 = 0x71;
private const uint VK_F3 = 0x72;
private const uint VK_F4 = 0x73;

// 定义虚拟键码
private const byte VK_LWIN = 0x5B; // 左 Win 键的虚拟键码
private const byte VK_SHIFT = 0x10; // Shift 键的虚拟键码
private const byte VK_S = 0x53; // S 键的虚拟键码
private const byte VK_CONTROL = 0x11; // Ctrl 键的虚拟键码
private const byte VK_C = 0x43; // C 键的虚拟键码
private const byte VK_V = 0x56; // V 键的虚拟键码

// 定义按键标志
private const uint KEYEVENTF_KEYDOWN = 0x0000;
private const uint KEYEVENTF_KEYUP = 0x0002;

// 定义一个标志来跟踪快捷键的状态
private bool hotkeysEnabled = true;

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);
    // 注册全局快捷键 F1
    RegisterHotKey(this.Handle, HOTKEY_F1_ID, 0,VK_F1 | VK_F1);
    // 注册其他全局快捷键
    RegisterHotkeys();
}

protected override void OnClosed(EventArgs e)
{
    base.OnClosed(e);
    // 注销全局快捷键 F1
    UnregisterHotKey(this.Handle, HOTKEY_F1_ID);
    // 注销其他全局快捷键
    UnregisterHotkeys();
}

private void RegisterHotkeys()
{
    if (hotkeysEnabled)
    {
        RegisterHotKey(this.Handle, HOTKEY_F5_ID, 0, VK_F5);
        RegisterHotKey(this.Handle, HOTKEY_F2_ID, 0, VK_F2);
        RegisterHotKey(this.Handle, HOTKEY_F3_ID, 0, VK_F3);
        RegisterHotKey(this.Handle, HOTKEY_F4_ID, 0, VK_F4);
    }
}

private void UnregisterHotkeys()
{
    UnregisterHotKey(this.Handle, HOTKEY_F5_ID);
    UnregisterHotKey(this.Handle, HOTKEY_F2_ID);
    UnregisterHotKey(this.Handle, HOTKEY_F3_ID);
    UnregisterHotKey(this.Handle, HOTKEY_F4_ID);
}

protected override void WndProc(ref Message m)
{
    const int WM_HOTKEY = 0x0312;
    if (m.Msg == WM_HOTKEY)
    {
        switch (m.WParam.ToInt32())
        {
            case HOTKEY_F1_ID:
                // 切换快捷键的状态
                hotkeysEnabled = !hotkeysEnabled;
                if (hotkeysEnabled)
                {
                    RegisterHotkeys();
                }
                else
                {
                    UnregisterHotkeys();
                }
                break;
            case HOTKEY_F5_ID:
                // 模拟按下 Ctrl + S 组合键，实现保存功能
                keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_S, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_S, 0, KEYEVENTF_KEYUP, 0);
                keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, 0);
                break;
            case HOTKEY_F2_ID:
                // 模拟按下 Ctrl + C 组合键，实现复制功能
                keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_C, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_C, 0, KEYEVENTF_KEYUP, 0);
                keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, 0);
                break;
            case HOTKEY_F3_ID:
                // 模拟按下 Ctrl + V 组合键，实现粘贴功能
                keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_V, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_V, 0, KEYEVENTF_KEYUP, 0);
                keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, 0);
                break;
            case HOTKEY_F4_ID:
                // 模拟按下 Win + Shift 后按 S 组合键，实现截图功能
                keybd_event(VK_SHIFT, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_LWIN, 0, KEYEVENTF_KEYDOWN, 0);
                Thread.Sleep(50);
                keybd_event(VK_S, 0, KEYEVENTF_KEYDOWN, 0);
                keybd_event(VK_S, 0, KEYEVENTF_KEYUP, 0);
                keybd_event(VK_LWIN, 0, KEYEVENTF_KEYUP, 0);
                keybd_event(VK_SHIFT, 0, KEYEVENTF_KEYUP, 0);
                break;
        }
    }
    base.WndProc(ref m);
}