将组合键（严格地）绑定到特定表单

Question

能否请您告诉我如何使用“globalmousekeyhook”库（https://github.com/gmamaladze/globalmousekeyhook/blob/vNext/keycomb.md）编写键盘快捷键不是针对整个应用程序，而是针对特定形式 ？为了避免每次都检查 activity 的表单 (Form.ActiveForm == this)。 P.S。如果您不进行这些检查，键盘快捷键将在所有创建的表单中同时触发。

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

AppEvents 解决方案

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 的解决方案（如果您的应用程序中只有一个表单）

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（非强制性：关闭主窗体将关闭整个应用程序

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

GlobalEvents 的解决方案（如果您的应用程序中有超过 1 个表单）

使用 Hide() 隐藏所需的窗体，打开另一个窗体。根据书(http://it-kniga.narod.ru/5-7502-0222-4/02020903.html)，方法Hide()类似于Visible = false;

创建 FormName_VisibleChanged 事件。以所有必要的形式编写代码（例如：FormMain、Form1、FormName...）。此方法允许您为每个单独的表单而不是所有运行（隐藏）表单激活 GlobalEvents。

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
}

将组合键（严格地）绑定到特定表单

Binding key combinations (strictly) to a specific form

c#

winapi

winforms

mousekeyhook

lib