ComboBox Scrollwheel disable

[R Myers]

Hello, Is there any way to disable the scrollwheel function for a ComboBox? Thanks R.Myers

[DaveyM69]

The combobox has a MouseWheel event but it appears to have no way of altering the data (the properties are all read only) or cancelling. You may have to invesigate in the API: WM_MOUSEWHEEL[^]

[DaveyM69]

This works!

namespace WindowsFormsApplication1
{
public partial class Form1 : Form, IMessageFilter
{
private const int WM_MOUSEWHEEL = 0x20A;
public bool PreFilterMessage(ref Message m)
{
if (m.Msg == WM_MOUSEWHEEL && this.ActiveControl == comboBox1)
{
return true;
}

        return false;
    }

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1\_Load(object sender, EventArgs e)
    {
        Application.AddMessageFilter(this);
    }
}

}

[R Myers]

Thanks! That worked great! R.Myers