/// <summary> /// 热键 /// </summary> public class HotKey { public const int WM_HOTKEY = 0x0312; //如果函数执行成功,返回值不为0。 //如果函数执行失败,返回值为0。要得到扩展错误信息,调用GetLastError。 [DllImport("user32.dll", SetLastError = true)] public static extern bool RegisterHotKey( IntPtr hWnd, //要定义热键的窗口的句柄 int id, //定义热键ID(不能与其它ID重复) KeyModifiers fsModifiers, //标识热键是否在按Alt、Ctrl、Shift、Windows等键时才会生效 Keys vk //定义热键的内容 ); [DllImport("user32.dll", SetLastError = true)] public static extern bool UnregisterHotKey( IntPtr hWnd, //要取消热键的窗口的句柄 int id //要取消热键的ID ); //定义了辅助键的名称(将数字转变为字符以便于记忆,也可去除此枚举而直接使用数值) /// <summary> /// 计算标识 /// </summary> /// <param name="keyModifiers"></param> /// <param name="key"></param> /// <returns></returns> internal static int CalculateID(KeyModifiers keyModifiers, Keys key) { return (int)keyModifiers + ((int)key << 4); } public readonly KeyModifiers ModifierKey; public readonly Keys Key; public readonly int id; /// <summary> /// /// </summary> /// <param name="keyModifiers"></param> /// <param name="key"></param> internal HotKey(KeyModifiers keyModifiers, Keys key) { this.ModifierKey = keyModifiers; this.Key = key; this.id = HotKey.CalculateID(keyModifiers, key); } }
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