C#

private const int WM_ENTERSIZEMOVE = 0x0231;
private const int WM_EXITSIZEMOVE = 0x0232;

protected override void WndProc(ref Message m)
{
    base.WndProc(ref m);

    switch (m.Msg)
    {
        case WM_ENTERSIZEMOVE:
            this.Opacity = 0.5;
            break;
        case WM_EXITSIZEMOVE:
            this.Opacity = 1.0;
            break;
    }

    this.Invalidate();
}

The only programmers that are better C# programmers, are those who look like this ->

Programm3r
My Blog: ^_^

OriginalGriff wrote:

I would hunt down the sender, and remove large lumps of their body

here2learn wrote:

may be i belong to india where people are more open and here sharing birthdates are not big deals