Flickering in listview with ownerdraw and virtualmode

Question

I\'m using listview control with the following parameters set:

        this.listView1.BackColor = System.Drawing.Color.Gainsboro;
        this.listView1.Colu         


        

Answer 1

I get a bunch of

'System.Drawing.NativeMethods' is inaccessible due to its protection level

and

The type name 'NMHDR' does not exist in the type 'System.Drawing.NativeMethods' 

errors. I read somewhere that I have to include user32.dll but can't figure out how to do it in this case.

Edit: OK, I posted before even start to think. I created now my own ListView control and copied the struct from the objectListView code. It seems to work now. Here my code:

public class Listview : ListView
{
    private bool isInWmPaintMsg=false;

    [StructLayout(LayoutKind.Sequential)]
    public struct NMHDR
    {
        public IntPtr hwndFrom;
        public IntPtr idFrom;
        public int code;
    }

    protected override void WndProc(ref Message m)
    {
        switch (m.Msg)
        {
            case 0x0F: // WM_PAINT
                this.isInWmPaintMsg = true;
                base.WndProc(ref m);
                this.isInWmPaintMsg = false;
                break;
            case 0x204E: // WM_REFLECT_NOTIFY
                NMHDR nmhdr = (NMHDR)m.GetLParam(typeof(NMHDR));
                if (nmhdr.code == -12)
                { // NM_CUSTOMDRAW
                    if (this.isInWmPaintMsg)
                        base.WndProc(ref m);
                }
                else
                    base.WndProc(ref m);
                break;
            default:
                base.WndProc(ref m);
                break;
        }
    }

}