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C#設置熱鍵隱蔽指定窗口的代碼
using System; using System.Text; using System.Collections; using System.Runtime.InteropServices; namespace WindowHider { /// <summary> /// Object used to control a Windows Form. /// </summary> public class Window { /// <summary> /// Win32 API Imports /// </summary> [DllImport("user32.dll")] private static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow); [DllImport("user32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd); [DllImport("user32.dll")] private static extern bool IsIconic(IntPtr hWnd); [DllImport("user32.dll")] private static extern bool IsZoomed(IntPtr hWnd); [DllImport("user32.dll")] private static extern IntPtr GetForegroundWindow(); [DllImport("user32.dll")] private static extern IntPtr GetWindowThreadProcessId(IntPtr hWnd, IntPtr ProcessId); [DllImport("user32.dll")] private static extern IntPtr AttachThreadInput(IntPtr idAttach, IntPtr idAttachTo, int fAttach); /// <summary> /// Win32 API Constants for ShowWindowAsync() /// </summary> private const int SW_HIDE = 0; private const int SW_SHOWNORMAL = 1; private const int SW_SHOWMINIMIZED = 2; private const int SW_SHOWMAXIMIZED = 3; private const int SW_SHOWNOACTIVATE = 4; private const int SW_RESTORE = 9; private const int SW_SHOWDEFAULT = 10; /// <summary> /// Private Fields /// </summary> private IntPtr m_hWnd; private string m_Title; private bool m_Visible = true; private string m_Process; private bool m_WasMax = false; /// <summary> /// Window Object's Public Properties /// </summary> public IntPtr hWnd { get{return m_hWnd;} } public string Title { get{return m_Title;} } public string Process { get{return m_Process;} } /// <summary> /// Sets this Window Object's visibility /// </summary> public bool Visible { get{return m_Visible;} set { //show the window if(value == true) { if(m_WasMax) { if(ShowWindowAsync(m_hWnd,SW_SHOWMAXIMIZED)) m_Visible = true; } else { if(ShowWindowAsync(m_hWnd,SW_SHOWNORMAL)) m_Visible = true; } } //hide the window if(value == false) { m_WasMax = IsZoomed(m_hWnd); if(ShowWindowAsync(m_hWnd,SW_HIDE)) m_Visible = false; } } } /// <summary> /// Constructs a Window Object /// </summary> /// <param name="Title">Title Caption</param> /// <param name="hWnd">Handle</param> /// <param name="Process">Owning Process</param> public Window(string Title, IntPtr hWnd, string Process) { m_Title = Title; m_hWnd = hWnd; m_Process = Process; } //Override ToString() public override string ToString() { //return the title if it has one, if not return the process name if (m_Title.Length > 0) { return m_Title; } else { return m_Process; } } /// <summary> /// Sets focus to this Window Object /// </summary> public void Activate() { if(m_hWnd == GetForegroundWindow()) return; IntPtr ThreadID1 = GetWindowThreadProcessId(GetForegroundWindow(), IntPtr.Zero); IntPtr ThreadID2 = GetWindowThreadProcessId(m_hWnd,IntPtr.Zero); if (ThreadID1 != ThreadID2) { AttachThreadInput(ThreadID1,ThreadID2,1); SetForegroundWindow(m_hWnd); AttachThreadInput(ThreadID1,ThreadID2,0); } else { SetForegroundWindow(m_hWnd); } if (IsIconic(m_hWnd)) { ShowWindowAsync(m_hWnd,SW_RESTORE); } else { ShowWindowAsync(m_hWnd,SW_SHOWNORMAL); } } } /// <summary> /// Collection used to enumerate Window Objects /// </summary> public class Windows : IEnumerable, IEnumerator { /// <summary> /// Win32 API Imports /// </summary> [DllImport("user32.dll")] private static extern int GetWindowText(int hWnd, StringBuilder title, int size); [DllImport("user32.dll")] private static extern int GetWindowModuleFileName(int hWnd, StringBuilder title, int size); [DllImport("user32.dll")] private static extern int EnumWindows(EnumWindowsProc ewp, int lParam); [DllImport("user32.dll")] private static extern bool IsWindowVisible(int hWnd); //delegate used for EnumWindows() callback function public delegate bool EnumWindowsProc(int hWnd, int lParam); private int m_Position = -1; // holds current index of wndArray, // necessary for IEnumerable ArrayList wndArray = new ArrayList(); //array of windows //Object's private fields private bool m_invisible = false; private bool m_notitle = false; /// <summary> /// Collection Constructor with additional options /// </summary> /// <param name="Invisible">Include invisible Windows</param> /// <param name="Untitled">Include untitled Windows</param> public Windows(bool Invisible, bool Untitled) { m_invisible = Invisible; m_notitle = Untitled; //Declare a callback delegate for EnumWindows() API call EnumWindowsProc ewp = new EnumWindowsProc(EvalWindow); //Enumerate all Windows EnumWindows(ewp, 0); } /// <summary> /// Collection Constructor /// </summary> public Windows() { //Declare a callback delegate for EnumWindows() API call EnumWindowsProc ewp = new EnumWindowsProc(EvalWindow); //Enumerate all Windows EnumWindows(ewp, 0); } //EnumWindows CALLBACK function private bool EvalWindow(int hWnd, int lParam) { if (m_invisible == false && !IsWindowVisible(hWnd)) return(true); StringBuilder title = new StringBuilder(256); StringBuilder module = new StringBuilder(256); GetWindowModuleFileName(hWnd, module, 256); GetWindowText(hWnd, title, 256); if (m_notitle == false && title.Length == 0) return(true); wndArray.Add(new Window(title.ToString(), (IntPtr)hWnd, module.ToString())); return(true); } //implement IEnumerable public IEnumerator GetEnumerator() { return (IEnumerator)this; } //implement IEnumerator public bool MoveNext() { m_Position++; if (m_Position < wndArray.Count) { return true; } else { return false; } } public void Reset() { m_Position = -1; } public object Current { get { return wndArray[m_Position]; } } } }
再給年夜家分享一個其他網友的辦法,也異常不錯,概況請看正文。
using System; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Windows.Forms; namespace drmaple { class HotKey { //假如函數履行勝利,前往值不為0。 //假如函數履行掉敗,前往值為0。要獲得擴大毛病信息,挪用GetLastError。 [DllImport("user32.dll", SetLastError = true)] public static extern bool RegisterHotKey( IntPtr hWnd, //要界說熱鍵的窗口的句柄 int id, //界說熱鍵ID(不克不及與其它ID反復) KeyModifiers fsModifiers, //標識熱鍵能否在按Alt、Ctrl、Shift、Windows等鍵時才會失效 Keys vk //界說熱鍵的內容 ); [DllImport("user32.dll", SetLastError = true)] public static extern bool UnregisterHotKey( IntPtr hWnd, //要撤消熱鍵的窗口的句柄 int id //要撤消熱鍵的ID ); //界說了幫助鍵的稱號(將數字改變為字符以便於記憶,也可去除此列舉而直接應用數值) [Flags()] public enum KeyModifiers { None = 0, Alt = 1, Ctrl = 2, Shift = 4, WindowsKey = 8 } } } //簡略解釋一下: //“public static extern bool RegisterHotKey()”這個函數用於注冊熱鍵。因為這個函數須要援用user32.dll靜態鏈接庫後能力應用,而且 //user32.dll長短托管代碼,不克不及用定名空間的方法直接援用,所以須要用“DllImport”停止引入後能力應用。因而在函數後面須要加上 //“[DllImport("user32.dll", SetLastError = true)]”這行語句。 //“public static extern bool UnregisterHotKey()”這個函數用於刊出熱鍵,同理也須要用DllImport援用user32.dll後能力應用。 //“public enum KeyModifiers{}”界說了一組列舉,將幫助鍵的數字代碼直接表現為文字,以便利應用。如許在挪用時我們不用記住每個輔 //助鍵的代碼而只需直接選擇其稱號便可。 //(2)以窗體FormA為例,引見HotKey類的應用 //在FormA的Activate事宜中注冊熱鍵,本例中注冊Shift+S,Ctrl+Z,Alt+D這三個熱鍵。這裡的Id號可隨意率性設置,但要包管不被反復。 private void Form_Activated(object sender, EventArgs e) { //注冊熱鍵Shift+S,Id號為100。HotKey.KeyModifiers.Shift也能夠直接應用數字4來表現。 HotKey.RegisterHotKey(Handle, 100, HotKey.KeyModifiers.Shift, Keys.S); //注冊熱鍵Ctrl+B,Id號為101。HotKey.KeyModifiers.Ctrl也能夠直接應用數字2來表現。 HotKey.RegisterHotKey(Handle, 101, HotKey.KeyModifiers.Ctrl, Keys.B); //注冊熱鍵Alt+D,Id號為102。HotKey.KeyModifiers.Alt也能夠直接應用數字1來表現。 HotKey.RegisterHotKey(Handle, 102, HotKey.KeyModifiers.Alt, Keys.D); } //在FormA的Leave事宜中刊出熱鍵。 private void FrmSale_Leave(object sender, EventArgs e) { //刊出Id號為100的熱鍵設定 HotKey.UnregisterHotKey(Handle, 100); //刊出Id號為101的熱鍵設定 HotKey.UnregisterHotKey(Handle, 101); //刊出Id號為102的熱鍵設定 HotKey.UnregisterHotKey(Handle, 102); } 重載FromA中的WndProc函數 /// /// 監督Windows新聞 /// 重載WndProc辦法,用於完成熱鍵呼應 /// /// protected override void WndProc(ref Message m) { const int WM_HOTKEY = 0x0312; //按快捷鍵 switch (m.Msg) { case WM_HOTKEY: switch (m.WParam.ToInt32()) { case 100: //按下的是Shift+S //此處填寫快捷鍵呼應代碼 break; case 101: //按下的是Ctrl+B //此處填寫快捷鍵呼應代碼 break; case 102: //按下的是Alt+D //此處填寫快捷鍵呼應代碼 break; } break; } base.WndProc(ref m); }
以上所述就是本文的全體內容了,願望對年夜家進修C#可以或許有所贊助。