將組合鍵（嚴格）綁定到特定表單

Question

您能否告訴我如何使用“globalmousekeyhook”庫（ https://github.com/gmamaladze/globalmousekeyhook/blob/vNext/keycomb.md ）來編寫鍵盤快捷鍵不是針對整個應用程序，而是針對特定表單？ 為了避免每次都檢查表單的活動（Form.ActiveForm == this）。 PS 如果您不進行這些檢查，鍵盤快捷鍵將在所有創建的 forms 中同時觸發。

private void Form1_Load(object sender, EventArgs e) {
   Action ex1 = () => { if (Form.ActiveForm == this) Dop.ChangeBackColor(this, Color.Black); };
   Action ex2 = () => { if (Form.ActiveForm == this) Dop.ChangeBackColor(this, Color.Green); };

   // Install listener App [Combinations]
   Hook.AppEvents().OnCombination(new Dictionary<Combination, Action> {
      { Combination.FromString("Control + S"), ex1 },
      { Combination.FromString("Control + D"), ex2 }
   });
}

Answer 1

應用事件解決方案

private IKeyboardMouseEvents m_ApplHook;
private void FormName_Activated(object sender, EventArgs e) {
  m_ApplHook = Hook.AppEvents(); // Subscribe

    Action d = () => { Dop.ChangeBackColor(this, Color.Black); };
    Action s = () => { Dop.ChangeBackColor(this, Color.Red); };

    // Install listener App [Combinations]
    m_ApplHook.OnCombination(new Dictionary<Combination, Action> {
      { Combination.FromString("Control + S"), d },
      { Combination.FromString("Control + D"), s }
    });
}

private void FormName_Deactivate(object sender, EventArgs e) {
  m_ApplHook.Dispose(); // UnSubscribe
}

GlobalEvents 的解決方案（如果您的應用程序中只有 1 個表單）

在 FormName_Load 中激活 GlobalEvents

private IKeyboardMouseEvents m_GlobalHook;
private void FormName_Load(object sender, EventArgs e) {
   m_GlobalHook = Hook.GlobalEvents();

   // Install Global listener [Sequences]
   Sequence OpenApps = Sequence.FromString("Control + C, Control + C");
     Dictionary<Sequence, Action> assignments = new Dictionary<Sequence, Action> {
       { OpenApps, () => {
           this.Text = Clipboard.GetText();
         }},
       };

  // Replace Hook.GlobalEvents() on m_GlobalHook
  m_GlobalHook.OnSequence(assignments);
}

停用 FormName_Closed 中的 GlobalEvents（非強制性：關閉主窗體將關閉整個應用程序

private void FormName_FormClosed(object sender, FormClosedEventArgs e) {
  m_GlobalHook.Dispose();
}

GlobalEvents 的解決方案（如果您的應用程序中有超過 1 個表單）

使用 Hide() 隱藏所需的表單，打開另一個表單。 根據書（ http://it-kniga.narod.ru/5-7502-0222-4/02020903.html ），方法 Hide() 類似於 Visible = false；

創建 FormName_VisibleChanged 事件。 在所有必要的 forms 中編寫代碼（例如：FormMain、Form1、FormName...）。 此方法允許您為每個單獨的表單激活 GlobalEvents，而不是所有正在運行（隱藏）的 forms。

private IKeyboardMouseEvents m_GlobalHook;
// Documentation: https://github.com/gmamaladze/globalmousekeyhook/blob/vNext/keycomb.md

private void FormName_VisibleChanged(object sender, EventArgs e) {
  if (this.Visible) {
    m_GlobalHook = Hook.GlobalEvents(); // Subscribe

    Action ex = () => { this.Text += "Ctrl + C x2"; };
    Action ext = () => { this.Text += "Shift + C"; };

    // Install Global listener [Sequences]
    m_GlobalHook.OnSequence(new Dictionary<Sequence, Action> {
      { Sequence.FromString("Control + C, Control + C"), ex },
      { Sequence.FromString("Shift + C"), ext },
    });

  } else m_GlobalHook.Dispose(); // UnSubscribe
}