如果MainWindowHandle
不是0,则以下代码将窗口置于前台。
如何将窗口带到MainWindowHandle
= 0?
这适用于Microsoft Excel - 兼容性检查器窗口,该窗口显示GUI但在任务栏中没有图标且MainWindowHandle
= 0。
我没有其他Excel运行实例。
Add-Type @"
using System;
using System.Runtime.InteropServices;
public class Tricks {
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool SetForegroundWindow(IntPtr hWnd);
}
"@
$excel = (Get-Process | Where-Object { $_.ProcessName -eq 'EXCEL' }).MainWindowHandle
[void] [Tricks]::SetForegroundWindow($excel)
在Windows任务管理器中,我可以右键单击“Microsoft Excel - 兼容性检查器”,然后单击“置于前面”,这样就可以了。我如何在Powershell中模仿这个功能?
答案 0 :(得分:2)
感谢IInspectable指出我正确的方向。
此代码获取真正的MainWindowHandle
值:
$TypeDef2 = @"
using System;
using System.Text;
using System.Collections.Generic;
using System.Runtime.InteropServices;
namespace Api
{
public class WinStruct
{
public string WinTitle {get; set; }
public int MainWindowHandle { get; set; }
}
public class ApiDef
{
private delegate bool CallBackPtr(int hwnd, int lParam);
private static CallBackPtr callBackPtr = Callback;
private static List<WinStruct> _WinStructList = new List<WinStruct>();
[DllImport("User32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool EnumWindows(CallBackPtr lpEnumFunc, IntPtr lParam);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
private static bool Callback(int hWnd, int lparam)
{
StringBuilder sb = new StringBuilder(256);
int res = GetWindowText((IntPtr)hWnd, sb, 256);
_WinStructList.Add(new WinStruct { MainWindowHandle = hWnd, WinTitle = sb.ToString() });
return true;
}
public static List<WinStruct> GetWindows()
{
_WinStructList = new List<WinStruct>();
EnumWindows(callBackPtr, IntPtr.Zero);
return _WinStructList;
}
}
}
"@
Add-Type -TypeDefinition $TypeDef2 -Language CSharpVersion3
$excelInstance = [Api.Apidef]::GetWindows() | Where-Object { $_.WinTitle.ToUpper() -eq "Microsoft Excel - Compatibility Checker".ToUpper() }
所以现在使用这个正确的值,我可以调用SetForegroundWindow()
函数:
Add-Type @"
using System;
using System.Runtime.InteropServices;
public class Tricks {
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool SetForegroundWindow(IntPtr hWnd);
}
"@
[void] [Tricks]::SetForegroundWindow($excelInstance.MainWindowHandle)
我在website上写了一篇详细的博客。
我在GitHub上提供了一个关于如何创建Excel文件,编辑它并在不同的线程中运行上述代码的完整示例,因为Excel弹出窗口阻塞了主线程。