是否有託管API用於通過窗口標題查找窗口句柄？

這是我目前使用的代碼：是否有託管API用於通過窗口標題查找窗口句柄？

private Bitmap getScreenshotOfWindow(String windowTitle) { 
    RECT win32Rect; 
    HandleRef handle = new HandleRef(this, Handle); 

    if (!GetWindowRect(handle, out win32Rect)) { 
     MessageBox.Show(@"Error: unable to get window boundaries."); 
     return null; 
    } 

    Rectangle bounds = new Rectangle(); 
    bounds.X = win32Rect.Left; 
    bounds.Y = win32Rect.Top; 
    bounds.Width = win32Rect.Right - win32Rect.Left + 1; 
    bounds.Height = win32Rect.Bottom - win32Rect.Top + 1; 

    Bitmap screenshot = new Bitmap(bounds.Width, bounds.Height); 
    using(Graphics g = Graphics.FromImage(screenshot)) { 
     g.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size); 
    } 
    return screenshot; 
}

有什麼辦法來創建一個HandleRef對象，取決於使用管理API的字符串windowTitle？

編輯：這是我結束了代碼：

private Bitmap getScreenshotOfWindow(String windowTitle) { 
    RECT win32Rect; 
    IntPtr handle = getWindowHandle(windowTitle); 

    if (handle == IntPtr.Zero) { 
     MessageBox.Show(@"Error: Unable to find window."); 
     return null; 
    } 

    if (!GetWindowRect(handle, out win32Rect)) { 
     MessageBox.Show(@"Error: unable to get window boundaries."); 
     return null; 
    } 

    Rectangle bounds = new Rectangle(); 
    bounds.X = win32Rect.Left; 
    bounds.Y = win32Rect.Top; 
    bounds.Width = win32Rect.Right - win32Rect.Left + 1; 
    bounds.Height = win32Rect.Bottom - win32Rect.Top + 1; 

    Bitmap screenshot = new Bitmap(bounds.Width, bounds.Height); 
    using(Graphics g = Graphics.FromImage(screenshot)) { 
     g.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size); 
    } 
    return screenshot; 
} 

private IntPtr getWindowHandle(string windowTitle) { 
    foreach (Process proc in Process.GetProcesses()) { 
     if (proc.MainWindowTitle.Equals(windowTitle)) { 
      return proc.MainWindowHandle; 
     } 
    } 

    return IntPtr.Zero; 
}

來源

2013-12-20 user3123860

表單具有句柄proeprty，但如果您無法訪問項目中的表單，則必須使用我知道的winapi。 http://msdn.microsoft.com/en-us/library/system.windows.forms.control.handle(v=vs.110).aspx –

您需要包裝FindWindow本機API。這很容易;見Pinvoke.net – EricLaw

System.Diagnostics.Process[] _procs = 
    System.Diagnostics.Process.GetCurrentProcess().GetProcesses();

將返回本地計算機上運行的所有進程。你可以遍歷它們。

主窗口標題將出現在Process.MainWindowTitle屬性中。

Process.Handle可能是你感興趣的一點。

來源

2013-12-20 19:28:59 OnoSendai

是否有託管API用於通過窗口標題查找窗口句柄？

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