Playing sound when GUI is open - windows

Question

I am trying to play sound as long as the GUI is open, but as I am not familiar with powershell I need help..
Right now I have this:
$sound = New-Object System.Media.SoundPlayer
$sound.SoundLocation="c:\WINDOWS\Media\ringout.wav"
$Form.ShowDialog()
$sound.PlayLooping()
$flag=$false
1..10 | foreach {
if ($_ -gt 5) {
$flag=$true
}
else {
sleep -s 1
}
if($flag) {
$sound.Stop()
}
}
Of course it's playing after I close this GUI, If I will put $Form.ShowDialog() at the end it will be play before GUI will show...
GUI is closed by button, simple $Form.Close()
Edit ($Form declaration) :
$Form = New-Object System.Windows.Forms.Form
$Form.Text = "ALERT"
$Form.StartPosition = "CenterScreen"
$Form.Topmost = $True
$Form.BackColor = "White"
$Form.AutoSize = $True
$Form.AutoSizeMode = "GrowAndShrink"
$Form.ControlBox = $false
I tried also with if and while loop but without success. Any ideas?

Answer 1

First things first. There is an important difference between Form.Show() and $Form.ShowDialog(). While Show() will return immediately, the latter one waits upon Dialog completion. So, if you start the music before ShowDialog() and stop it after that line, I don't know, why it shouldn't work.
For your needs, you might like events. Use the Forms Load event to execute some logic while the form loads, and its Closing event to add some logic when the form closes:
$Form = New-Object System.Windows.Forms.Form -Property #{
Text = "ALERT"
StartPosition = "CenterScreen"
Topmost = $True
BackColor = "White"
AutoSize = $True
AutoSizeMode = "GrowAndShrink"
ControlBox = $false
}
$sound = New-Object System.Media.SoundPlayer -Property #{SoundLocation = "c:\WINDOWS\Media\ringout.wav"}
$Form.Add_Load({
$sound.PlayLooping()
})
$Form.Add_Closing({
$sound.Stop()
})
$Form.Show()
One might think for readability and reusability the following works better:
[scriptblock]$startMusic = {
$sound.PlayLooping()
}
[scriptblock]$stopMusic = {
$sound.Stop()
}
$Form.Add_Load($startMusic)
$Form.Add_Closing($stopMusic)
This would easily allow us to reuse those methods (e.g. for other dialogs and actions)