Bring Powershell-Console to front from WinForms

Question

im trying to bring my powershell console to front, even if it is minimized. I found following code:

function Show-Process($Process, [Switch]$Maximize)
{
  $sig = '
    [DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
    [DllImport("user32.dll")] public static extern int SetForegroundWindow(IntPtr hwnd);
  '

  if ($Maximize) { $Mode = 3 } else { $Mode = 4 }
  $type = Add-Type -MemberDefinition $sig -Name WindowAPI -PassThru
  $hwnd = $process.MainWindowHandle
  $null = $type::ShowWindowAsync($hwnd, $Mode)
  $null = $type::SetForegroundWindow($hwnd) 
}
Show-Process -Process (Get-Process -Id $pid) 

It works fine, but when i call the function from a Button Click event, the console wont show. What is the Problem? Is there a way to bring the powershell Console to front when using a WinForms GUI?

Here is the example GUI Code:

function Show-Process($Process, [Switch]$Maximize)
{
  $sig = '
    [DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
    [DllImport("user32.dll")] public static extern int SetForegroundWindow(IntPtr hwnd);
  '

  if ($Maximize) { $Mode = 3 } else { $Mode = 4 }
  $type = Add-Type -MemberDefinition $sig -Name WindowAPI -PassThru
  $hwnd = $process.MainWindowHandle
  $null = $type::ShowWindowAsync($hwnd, $Mode)
  $null = $type::SetForegroundWindow($hwnd) 
}

Add-Type -AssemblyName System.Windows.Forms
[System.Windows.Forms.Application]::EnableVisualStyles()

$Form                            = New-Object system.Windows.Forms.Form
$Form.ClientSize                 = '446,266'
$Form.text                       = "Form"
$Form.TopMost                    = $false

$Button1                         = New-Object system.Windows.Forms.Button
$Button1.text                    = "button"
$Button1.width                   = 60
$Button1.height                  = 30
$Button1.location                = New-Object System.Drawing.Point(75,29)
$Button1.Font                    = 'Microsoft Sans Serif,10'

$Button1.Add_Click({
    Show-Process -Process (Get-Process -Id $pid) 
})

$Form.controls.AddRange(@($Button1))

[void]$Form.ShowDialog()

Answer 1

Thanks to @iRon's answer, i was able to figure it out, how i want it. For anyone curious, the problem is, you only can get the consoles MainwindowHandle as long as ShowDialog wasn't called. So i save the console Handle in a variable and i use the Form_Shown event to get the Form WindowHandle, since Form_Load still returns the Console Handle.

$sig = '
[DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
[DllImport("user32.dll")] public static extern int SetForegroundWindow(IntPtr hwnd);'
$type = Add-Type -MemberDefinition $sig -Name WindowAPI -PassThru
[IntPtr]$handleConsole = (Get-Process -Id $pid).MainWindowHandle
[void]$type::ShowWindowAsync($handleConsole, 4);[void]$type::SetForegroundWindow($handleConsole)

Add-Type -AssemblyName System.Windows.Forms
[System.Windows.Forms.Application]::EnableVisualStyles()

$Form                            = New-Object system.Windows.Forms.Form
$Form.ClientSize                 = '446,266'
$Form.text                       = "Form"
$Form.TopMost                    = $false

$Form.Add_Shown({
 $global:handleForm = (Get-Process -Id $pid).MainWindowHandle
})

$Button1                         = New-Object system.Windows.Forms.Button
$Button1.text                    = "Clone ad-USer"
$Button1.width                   = 60
$Button1.height                  = 30
$Button1.location                = New-Object System.Drawing.Point(75,29)
$Button1.Font                    = 'Microsoft Sans Serif,10'

$Button1.Add_Click({
    [void]$type::ShowWindowAsync($handleConsole, 4);[void]$type::SetForegroundWindow($handleConsole)
    Read-Host -Prompt "Please Enter a Value"
    [void]$type::ShowWindowAsync($global:handleForm, 4);[void]$type::SetForegroundWindow($global:handleForm)
})

$Form.controls.AddRange(@($Button1))

[void]$Form.ShowDialog()

Now, if i press the Button, to console pops up in front. After the User enter something into the Console, the Form comes to front again.