如何使与应用程序无关的窗口最小化或最大化其在vb中的窗口状态？

Question

如果您在任务管理器中注意过，当您右键单击正在运行的任务时，您有许多选项，包括“最小化”和“最大化”。无论如何要做到这一点在VB中？

Answer 1

以下是您正在寻找的代码示例。它将遍历所有活动进程并最小化所有窗口。

在您的应用程序中，您可能会想使用类似Process.GetProcessesByName的东西来查找您要操作的特定窗口。

Imports System.Runtime.InteropServices 

Module ManipulateWindows 

    Const SW_HIDE As Integer = 0 
    Const SW_RESTORE As Integer = 1 
    Const SW_MINIMIZE As Integer = 2 
    Const SW_MAXIMIZE As Integer = 3 

    <DllImport("User32")> _ 
    Private Function ShowWindow(ByVal hwnd As Integer, ByVal nCmdShow As Integer) As Integer 
    End Function 

    Public Sub Main() 

     'iterate through all the open processes. 
     For Each p As Process In Process.GetProcesses  

      'Get the Window Handle 
      Dim hWnd as integer = CType(p.MainWindowHandle, Integer) 

      'Write out the title of the main window for the process. 
      System.Console.WriteLine(p.MainWindowTitle) 

      'Minimize the Window 
      ShowWindow(hWnd, SW_MINIMIZE) 
     Next p  
    End Sub  
End Module