通过进程名称取消隐藏进程？

前段时间我写了一段代码来隐藏/恢复进程窗口，我所做的是这样的：

隐藏进程：

1）在正在运行的进程中查找进程名。

2) 将 MainWindowHandle 添加到容器（在本例中为字典），这对于稍后取消隐藏该进程是必要的。

3) 使用ShowWindow API函数隐藏进程。

要取消隐藏进程：

1）在正在运行的进程中查找进程名。

2) 从容器中检索指定进程保存的MainWindowHandle。

3) 使用ShowWindow API函数取消隐藏进程。

为什么我使用字典来取消隐藏进程？因为隐藏进程有一个MainWindowHandle零值0，所以这是我发现检索正确句柄以在ShowWindow功能来恢复进程。

但我真的不想依赖Hide保存所需的方法HWND在隐藏进程之前，我想通过了解如何执行取消隐藏操作来改进这一切VB.NET or C#仅通过指定进程名称（例如：cmd.exe）之前不保存MainWindowHandle，这可以吗？

我展示了代码（在 VB.NET 中），让您了解我对 HideProcess 方法做了什么：

但请注意，这段代码与问题并不完全相关，我的问题是如何仅通过指定进程名称来取消隐藏隐藏进程以避免下面编写的代码需要检索已保存的句柄来取消隐藏进程。

' Hide-Unhide Process
'
' Usage Examples :
'
' HideProcess(Process.GetCurrentProcess().MainModule.ModuleName)
' HideProcess("notepad.exe", Recursivity:=False)
' HideProcess("notepad", Recursivity:=True)
'
' UnhideProcess(Process.GetCurrentProcess().MainModule.ModuleName)
' UnhideProcess("notepad.exe", Recursivity:=False)
' UnhideProcess("notepad", Recursivity:=True)

Private ProcessHandles As New Dictionary(Of String, IntPtr)

<System.Runtime.InteropServices.DllImport("User32")>
Private Shared Function ShowWindow(ByVal hwnd As IntPtr, ByVal nCmdShow As Integer) As Integer
End Function

Private Sub HideProcess(ByVal ProcessName As String, Optional ByVal Recursivity As Boolean = False)

    If ProcessName.EndsWith(".exe", StringComparison.OrdinalIgnoreCase) Then
        ProcessName = ProcessName.Remove(ProcessName.Length - ".exe".Length)
    End If

    Dim Processes() As Process = Process.GetProcessesByName(ProcessName)

    Select Case Recursivity

        Case True
            For Each p As Process In Processes
                ProcessHandles.Add(String.Format("{0};{1}", ProcessName, CStr(p.Handle)), p.MainWindowHandle)
                ShowWindow(p.MainWindowHandle, 0)
            Next p

        Case Else
            If Not (Processes.Count = 0) AndAlso Not (Processes(0).MainWindowHandle = 0) Then
                Dim p As Process = Processes(0)
                ProcessHandles.Add(String.Format("{0};{1}", ProcessName, CStr(p.Handle)), p.MainWindowHandle)
                ShowWindow(p.MainWindowHandle, 0)
            End If

    End Select

End Sub

Private Sub UnhideProcess(ByVal ProcessName As String, Optional ByVal Recursivity As Boolean = False)

    If ProcessName.EndsWith(".exe", StringComparison.OrdinalIgnoreCase) Then
        ProcessName = ProcessName.Remove(ProcessName.Length - ".exe".Length)
    End If

    Dim TempHandles As New Dictionary(Of String, IntPtr)
    For Each Handle As KeyValuePair(Of String, IntPtr) In ProcessHandles
        TempHandles.Add(Handle.Key, Handle.Value)
    Next Handle

    For Each Handle As KeyValuePair(Of String, IntPtr) In TempHandles

        If Handle.Key.ToLower.Contains(ProcessName.ToLower) Then

            ShowWindow(Handle.Value, 9)
            ProcessHandles.Remove(Handle.Key)

            If Recursivity Then
                Exit For
            End If

        End If

    Next Handle

End Sub

Code:

using System.Diagnostics;
using System.Runtime.InteropServices;

[DllImport("User32")]
private static extern int ShowWindow(IntPtr hwnd, int nCmdShow);

[DllImport("User32.dll")]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string strClassName, string strWindowName);

[DllImport("user32.dll")]
private static extern int GetWindowThreadProcessId(IntPtr hWnd, out int ProcessId);

private const int SW_RESTORE = 9;

private void UnhideProcess(string processName) //Unhide Process
{
    IntPtr handle = IntPtr.Zero;
    int prcsId = 0;

    //an array of all processes with name "processName"
    Process[] localAll = Process.GetProcessesByName(processName);

    //check all open windows (not only the process we are looking) begining from the
    //child of the desktop, handle = IntPtr.Zero initialy.
    do
    {
        //get child handle of window who's handle is "handle".
        handle = FindWindowEx(IntPtr.Zero, handle, null, null);

        GetWindowThreadProcessId(handle, out prcsId); //get ProcessId from "handle"

        //if it matches what we are looking
        if (prcsId == localAll[0].Id)
        {
            ShowWindow(handle, SW_RESTORE); //Show Window

            return;
        }
    } while (handle != IntPtr.Zero);
}

如果有更多同名实例，您可以使用变量，例如count和增量 它在if 语句

int count = 0;

if (prcsId == localAll[count].Id)
{
    ShowWindow(handle, SW_RESTORE);

    count++;
}

FindWindowEx 函数

和...之间的不同查找窗口Ex() and Process.MainWindowHandle()也许是每个函数的位置 正在寻找把手。查找窗口Ex()到处寻找不像主窗口句柄。进程句柄也称为HANDLE和一个窗口HWND