32 lines
754 B
PowerShell
32 lines
754 B
PowerShell
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param(
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[Parameter(Mandatory=$true)]
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[ValidateSet("up","down","mute","max")]
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[string]$Action,
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[int]$Times = 1
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)
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Add-Type -Name VolumeKey -Namespace Win32 -MemberDefinition @'
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[DllImport("user32.dll")]
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public static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, System.UIntPtr dwExtraInfo);
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'@
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$KEY_UP = 0xAF
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$KEY_DOWN = 0xAE
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$KEY_MUTE = 0xAD
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$vk = switch ($Action) {
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"up" { $KEY_UP }
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"down" { $KEY_DOWN }
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"mute" { $KEY_MUTE }
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"max" { $KEY_UP }
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}
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$count = if ($Action -eq "max") { 50 } else { $Times }
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for ($i = 0; $i -lt $count; $i++) {
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[Win32.VolumeKey]::keybd_event($vk, 0, 0, [UIntPtr]::Zero)
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[Win32.VolumeKey]::keybd_event($vk, 0, 2, [UIntPtr]::Zero)
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Start-Sleep -Milliseconds 25
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}
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