C#

<local:MyPickerRenderer x:Name="PositionPicker" Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,6" Style="{StaticResource TextBox}" VerticalOptions="Start" SelectedIndexChanged="Handle_SelectedIndexChangedPositionPicker" SelectedItem="{Binding SelectedPosition, Mode=OneWay}">
    <local:MyPickerRenderer.Items>
        <x:String>element 1</x:String>
        <x:String>element 2</x:String>
        <x:String>element 3</x:String>
        <x:String>element 4</x:String>
        <x:String>element 5</x:String>
        <x:String>element 6</x:String>
        <x:String>element 7</x:String>
        <x:String>element 8</x:String>
        <x:String>element 9</x:String>
        <x:String>element 10</x:String>
        <x:String>element 11</x:String>
        <x:String>element 12</x:String>
        <x:String>element </x:String>
    </local:MyPickerRenderer.Items>
</local:MyPickerRenderer>

SelectedIndexChange

local:MyPickerRenderer

SelectedIndexChanged="Handle_SelectedIndexChangedPositionPicker

void Handle_SelectedIndexChangedPositionPicker(object sender, System.EventArgs e)
  {
     Console.WriteLine(PositionPicker.SelectedItem);
  }

public bool PreFilterMessage(ref Message m)
{
    // handle the messages of interest
}

_Q12_ wrote:

Can you summarize it for me please? What can be done? what is used for (the most)? I'm refering to win32 COM plumbing thing