有沒有辦法檢查是否有其他程序全屏運行

Question

就像問題所述。我能否看到其他人，程序是否正在全屏運行？

全屏意味着整個屏幕被遮擋，可能在與桌面不同的視頻模式下運行。

Answer 1

這是一些代碼。你想要關心多屏幕的情況下，特別是像Powerpoint的應用程序

[StructLayout(LayoutKind.Sequential)] 
    private struct RECT 
    { 
     public int left; 
     public int top; 
     public int right; 
     public int bottom; 
    } 

    [DllImport("user32.dll")] 
    private static extern bool GetWindowRect(HandleRef hWnd, [In, Out] ref RECT rect); 

    [DllImport("user32.dll")] 
    private static extern IntPtr GetForegroundWindow(); 

    public static bool IsForegroundFullScreen() 
    { 
     return IsForegroundFullScreen(null); 
    } 

    public static bool IsForegroundFullScreen(Screen screen) 
    { 
     if (screen == null) 
     { 
      screen = Screen.PrimaryScreen; 
     } 
     RECT rect = new RECT(); 
     GetWindowRect(new HandleRef(null, GetForegroundWindow()), ref rect); 
     return new Rectangle(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top).Contains(screen.Bounds); 
    } 

Answer 2

我做了一些修改。使用下面的代碼，當任務欄被隱藏或在第二個屏幕上時，它不會錯誤地返回true。在Win 7下測試。

[StructLayout(LayoutKind.Sequential)] 
    public struct RECT 
    { 
     public int left; 
     public int top; 
     public int right; 
     public int bottom; 
    } 

    [DllImport("user32.dll", SetLastError = true)] 
    public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId); 

    [DllImport("user32.dll")] 
    private static extern bool GetWindowRect(HandleRef hWnd, [In, Out] ref RECT rect); 

    [DllImport("user32.dll")] 
    private static extern IntPtr GetForegroundWindow(); 

    public static bool IsForegroundFullScreen() 
    { 
     return IsForegroundFullScreen(null); 
    } 


    public static bool IsForegroundFullScreen(System.Windows.Forms.Screen screen) 
    { 

     if (screen == null) 
     { 
      screen = System.Windows.Forms.Screen.PrimaryScreen; 
     } 
     RECT rect = new RECT(); 
     IntPtr hWnd = (IntPtr)GetForegroundWindow(); 


     GetWindowRect(new HandleRef(null, hWnd), ref rect); 

     /* in case you want the process name: 
     uint procId = 0; 
     GetWindowThreadProcessId(hWnd, out procId); 
     var proc = System.Diagnostics.Process.GetProcessById((int)procId); 
     Console.WriteLine(proc.ProcessName); 
     */ 


     if (screen.Bounds.Width == (rect.right - rect.left) && screen.Bounds.Height == (rect.bottom - rect.top)) 
     { 
      Console.WriteLine("Fullscreen!") 
      return true; 
     } 
     else { 
      Console.WriteLine("Nope, :-("); 
      return false; 
     } 


    }