Mausbewegungen erkennen

$w = (gcim win32_DesktopMonitor).ScreenWidth -1
$h = (gcim win32_DesktopMonitor).ScreenHeight -1

$minstrokelength_vertical = 100
$maxdeviation_vertical = 30
$minstrokelength_horizontal = 100
$maxdeviation_horizontal = 30

Add-Type -A System.Windows.Forms
Add-Type –MemberDefinition '  
[DllImport("USER32.dll")]public static extern short GetKeyState(int nVirtKey);  
' -name "tool" -namespace W32  


$last = [System.Windows.Forms.Cursor]::Position
while($true){
    $pos = [System.Windows.Forms.Cursor]::Position

    # only trigger when LEFT SHIFT button is pressed
    if ([W32.tool]::GetKeyState(0xA0) -band 0x8000){
        # recognize vertical stroke (downwards)
        if ([math]::Abs($pos.X - $last.X) -le $maxdeviation_vertical -and $pos.Y-$last.Y -ge $minstrokelength_vertical){
            "Down stroke detected"  
        }
        # recognize vertical stroke (upwards)
        if ([math]::Abs($pos.X - $last.X) -le $maxdeviation_vertical -and $last.Y-$pos.Y -ge $minstrokelength_vertical){
            "Up stroke detected"  
        }
        # recognize horizontal stroke (right)
        if ([math]::Abs($pos.Y - $last.Y) -le $maxdeviation_horizontal -and $pos.X-$last.X -ge $minstrokelength_horizontal){
            "Right stroke detected"  
        }
        # recognize horizontal stroke (left)
        if ([math]::Abs($pos.Y - $last.Y) -le $maxdeviation_horizontal -and $last.X-$pos.X -ge $minstrokelength_horizontal){
            "Left stroke detected"  
        }

        # corner detection
        switch($pos){
            (New-Object System.Drawing.Point 0,0) {"top left corner"}  
            (New-Object System.Drawing.Point $w,0) {"top right corner"}  
            (New-Object System.Drawing.Point 0,$h) {"bottom left corner"}  
            (New-Object System.Drawing.Point $w,$h) {"bottom right corner"}  
        }    
    }
    $last = $pos
    sleep 1
}