function showUpscale($owner) {
    $form = New-Object System.Windows.Forms.Form
    $form.Owner = $owner
    $form.icon = $icon
    $form.Text = "Escalar"
    $form.Width = 445
    $form.Height = 440
    $form.StartPosition = [System.Windows.Forms.FormStartPosition]::CenterParent
    $form.MaximizeBox = $false
    $form.Font = "Microsoft Sans Serif, 9.35"
    $form.FormBorderStyle = 'FixedDialog'
    

    $label_ori = New-Object System.Windows.Forms.Label
    $label_ori.Text = "Medio:"
    $label_ori.AutoSize = $true
    $label_ori.Location = New-Object System.Drawing.Point(20, 23)

    $text_ori = New-Object System.Windows.Forms.TextBox
    $text_ori.Text = $sel_ori
    $text_ori.Width = 171
    $text_ori.Location = New-Object System.Drawing.Point(80, 20)
    $text_ori.add_DoubleClick({
            $text_ori.SelectAll();
        })

    $btn_ori_file = New-Object System.Windows.Forms.Button
    $btn_ori_file.Text = "Archivo"
    $btn_ori_file.AutoSize = $true
    $btn_ori_file.Location = New-Object System.Drawing.Point(256, 18)
    $btn_ori_file.Add_Click({    
            $res = selectFile -path "" -formats "Imagenes y videos (*.*)|*.*" -multi $false
            if ($res -ne $null) {
                $text_ori.Text = $res
                $label_name.Enabled = $true
                $text_name.Enabled = $true
                $text_name.Text = "$((Get-Item $res).Basename) - Escalado$((Get-Item $res).Extension)"
                # $text_dest.Text + "\" + $text_name.Text.replace("[filename]", (Get-Item $file).Basename).replace("[.extension]", (Get-Item $file).Extension)
            }
        })

    $btn_ori_folder = New-Object System.Windows.Forms.Button
    $btn_ori_folder.Text = "Carpeta"
    $btn_ori_folder.AutoSize = $true
    $btn_ori_folder.Location = New-Object System.Drawing.Point(335, 18)
    $btn_ori_folder.Add_Click({    
            $res = selectFolder -path $def_dest_dir
            if ($res -ne $null) {
                $text_ori.Text = $res
                $label_name.Enabled = $false
                $text_name.Enabled = $false
                $text_name.Text = ""
            }
        })



    $label_dest = New-Object System.Windows.Forms.Label
    $label_dest.Text = "Destino:"
    $label_dest.AutoSize = $true
    $label_dest.Location = New-Object System.Drawing.Point(20, 58)

    $text_dest = New-Object System.Windows.Forms.TextBox
    $text_dest.Text = $def_dest_dir
    $text_dest.Width = 250
    $text_dest.Location = New-Object System.Drawing.Point(80, 55)
    $text_dest.add_DoubleClick({
            $text_dest.SelectAll();
        })

    $btn_dest = New-Object System.Windows.Forms.Button
    $btn_dest.Text = "Examinar"
    $btn_dest.AutoSize = $true
    $btn_dest.Location = New-Object System.Drawing.Point(335, 53)
    $btn_dest.Add_Click({    
            $dest = selectFolder -path $def_dest_dir
            if ($dest) {
                $text_dest.Text = $dest
            }
        })



    $label_name = New-Object System.Windows.Forms.Label
    $label_name.Text = "Nombre:"
    $label_name.AutoSize = $true
    $label_name.Location = New-Object System.Drawing.Point(20, 93)
    
    $text_name = New-Object System.Windows.Forms.TextBox
    # $text_name.Text = "[filename]_UPSCALED[.extension]"
    $text_name.Width = 328
    $text_name.Location = New-Object System.Drawing.Point(80, 91)
    $text_name.add_TextChanged({
            removeInvalidChars -textbox $text_name
        })
    $text_name.add_DoubleClick({
            $text_name.SelectAll();
        })
    $text_name.Add_KeyDown({
            if ($_.KeyCode -eq "Enter") {
                $btn_exec.PerformClick()
            }
        })


    
    $label_model = New-Object System.Windows.Forms.Label
    $label_model.Text = "Modelo:"
    $label_model.AutoSize = $true
    $label_model.Location = New-Object System.Drawing.Point(20, 130)

    $list_model = New-Object System.Windows.Forms.ComboBox
    $list_model.Width = 328
    $list_model.DropDownStyle = [System.Windows.Forms.ComboBoxStyle]::DropDownList;
    $list_model.Location = New-Object System.Drawing.Point(80, 127)  

    $upscale_models = Get-ChildItem -Path $upscaler_models -Name
    [Array]::Reverse($upscale_models)
    
    foreach ($model in $upscale_models) {
        $list_model.Items.add($model.Split(".")[0])
    }
    $list_model.SelectedIndex = 0;



    $label_scale = New-Object System.Windows.Forms.Label
    $label_scale.Text = "Escalado"
    $label_scale.AutoSize = $true
    $label_scale.Location = New-Object System.Drawing.Point(20, 165)

    $track_scale = New-Object Windows.Forms.TrackBar
	$track_scale.Location = New-Object System.Drawing.Point(75, 165)
	$track_scale.Width = 340
	$track_scale.TickFrequency = 1
	$track_scale.SetRange(0, 6)
	$track_scale.Value = 3
    $scales = @(1, 2, 3, 4, 6, 8, 16)


    $label_sn1 = New-Object System.Windows.Forms.Label
    $label_sn1.Text = "x1"
    $label_sn1.AutoSize = $true
    $label_sn1.Location = New-Object System.Drawing.Point(80, 192)
    $form.Controls.Add($label_sn1)

    $label_sn2 = New-Object System.Windows.Forms.Label
    $label_sn2.Text = "x2"
    $label_sn2.AutoSize = $true
    $label_sn2.Location = New-Object System.Drawing.Point(132, 192)
    $form.Controls.Add($label_sn2)

    $label_sn3 = New-Object System.Windows.Forms.Label
    $label_sn3.Text = "x3"
    $label_sn3.AutoSize = $true
    $label_sn3.Location = New-Object System.Drawing.Point(184, 192)
    $form.Controls.Add($label_sn3)

    $label_sn4 = New-Object System.Windows.Forms.Label
    $label_sn4.Text = "x4"
    $label_sn4.AutoSize = $true
    $label_sn4.Location = New-Object System.Drawing.Point(238, 192)
    $form.Controls.Add($label_sn4)

    $label_sn6 = New-Object System.Windows.Forms.Label
    $label_sn6.Text = "x6"
    $label_sn6.AutoSize = $true
    $label_sn6.Location = New-Object System.Drawing.Point(290, 192)
    $form.Controls.Add($label_sn6)

    $label_sn8 = New-Object System.Windows.Forms.Label
    $label_sn8.Text = "x8"
    $label_sn8.AutoSize = $true
    $label_sn8.Location = New-Object System.Drawing.Point(341, 192)
    $form.Controls.Add($label_sn8)

    $label_sn16 = New-Object System.Windows.Forms.Label
    $label_sn16.Text = "x16"
    $label_sn16.AutoSize = $true
    $label_sn16.Location = New-Object System.Drawing.Point(388, 192)
    $form.Controls.Add($label_sn16)

    

    $label_tile = New-Object System.Windows.Forms.Label
    $label_tile.Text = "Tile"
    $label_tile.AutoSize = $true
    $label_tile.Location = New-Object System.Drawing.Point(20, 220)
    
    $track_tile = New-Object Windows.Forms.TrackBar
    $track_tile.Location = New-Object System.Drawing.Point(75, 220)
    $track_tile.Width = 220
    $track_tile.TickFrequency = 1
    $track_tile.SetRange(0, 4)
    $track_tile.Value = 4
    $tiles = @(0, 32, 64, 128, 256)


    $label_t0 = New-Object System.Windows.Forms.Label
    $label_t0.Text = "0"
    $label_t0.AutoSize = $true
    $label_t0.Location = New-Object System.Drawing.Point(83, 247)
    $form.Controls.Add($label_t0)

    $label_t32 = New-Object System.Windows.Forms.Label
    $label_t32.Text = "32"
    $label_t32.AutoSize = $true
    $label_t32.Location = New-Object System.Drawing.Point(128, 247)
    $form.Controls.Add($label_t32)

    $label_t64 = New-Object System.Windows.Forms.Label
    $label_t64.Text = "64"
    $label_t64.AutoSize = $true
    $label_t64.Location = New-Object System.Drawing.Point(177, 247)
    $form.Controls.Add($label_t64)

    $label_t128 = New-Object System.Windows.Forms.Label
    $label_t128.Text = "128"
    $label_t128.AutoSize = $true
    $label_t128.Location = New-Object System.Drawing.Point(221, 247)
    $form.Controls.Add($label_t128)

    $label_t256 = New-Object System.Windows.Forms.Label
    $label_t256.Text = "256"
    $label_t256.AutoSize = $true
    $label_t256.Location = New-Object System.Drawing.Point(270, 247)
    $form.Controls.Add($label_t256)



    $label_temp = New-Object System.Windows.Forms.Label
    $label_temp.Text = "Directorio de trabajo:"
    $label_temp.AutoSize = $true
    $label_temp.Location = New-Object System.Drawing.Point(20, 283)

    $text_temp = New-Object System.Windows.Forms.TextBox
    $text_temp.Text = $ENV:Temp
    $text_temp.Width = 185
    $text_temp.Location = New-Object System.Drawing.Point(145, 280)
    $text_temp.add_DoubleClick({
            $text_temp.SelectAll();
        })

    $btn_temp = New-Object System.Windows.Forms.Button
    $btn_temp.Text = "Examinar"
    $btn_temp.AutoSize = $true
    $btn_temp.Location = New-Object System.Drawing.Point(335, 278)
    $btn_temp.Add_Click({    
            $tmp = selectFolder -path $text_temp.Text
            if ($tmp) {
                $text_temp.Text = $tmp
            }
        })


    $check_rem = New-Object System.Windows.Forms.Checkbox 
	$check_rem.Location = New-Object System.Drawing.Point(25, 315)
    $check_rem.AutoSize = $true
    $check_rem.Text = "Eliminar frames al finalizar"
    $check_rem.Checked = $true


    $btn_exec = New-Object System.Windows.Forms.Button
    $btn_exec.Text = "Escalar"
    $btn_exec.Location = New-Object System.Drawing.Point(140, 355)
    $btn_exec.Width = 150
    $btn_exec.Height = 30
    $btn_exec.Add_Click({   
            try {
                $prevCode = startAlwaysOn
                
                # $sca = [Math]::Pow(2, $track_scale.Value)
                $sca = $scales[$track_scale.Value]
                $tile = $tiles[$track_tile.Value]
                foreach ($file in $text_ori.Text) {
                    # $out = $text_dest.Text + "\" + $text_name.Text.replace("[filename]", (Get-Item $file).Basename).replace("[.extension]", (Get-Item $file).Extension)
                    $out = $text_dest.Text
                    if (-not (isDirectory -path $file)) {
                        $out = "$out\$($text_name.Text)"
                    }
                    upscale -in $file -out $out -model $list_model.SelectedItem -scale $sca -temp $text_temp.Text -remove $check_rem.Checked -tile $tile
                }
            }
            finally {
                endAlwaysOn -code $prevCode
            }
        })

    $form.Controls.Add($label_ori)
    $form.Controls.Add($text_ori)
    $form.Controls.Add($btn_ori_file)
    $form.Controls.Add($btn_ori_folder)
    $form.Controls.Add($label_dest)
    $form.Controls.Add($text_dest)
    $form.Controls.Add($btn_dest)
    $form.Controls.Add($label_name)
    $form.Controls.Add($text_name)
    $form.Controls.Add($label_model)
    $form.Controls.Add($list_model)
    $form.Controls.Add($label_scale)
    $form.Controls.Add($track_scale)
    $form.Controls.Add($label_temp)
    $form.Controls.Add($text_temp)
    $form.Controls.Add($btn_temp)
    $form.Controls.Add($check_rem)
    $form.Controls.Add($btn_exec)
    $form.Controls.Add($label_tile)
    $form.Controls.Add($track_tile)
    $text_ori.Select()

    $form.Add_Closing({
            $owner.Location = getRelativeLocation -parent $owner -child $form
            $form.Hide()
            $owner.Show()
        })
        
    [PSAppID]::SetAppIdForWindow($form.handle, "$($metadata.package).$app_name")

    $form.Add_LocationChanged({ $global:win_loc = $form.Location })
    $form.Add_Resize({          $global:win_size = $form.Size })

    $form.ShowDialog()
    
}