Margin starting at 0 instead of 1

[SolarLiner]

const uint SCI_SETMARGINTYPEN = 0x08C0;
const uint SCI_MARGINSETTEXT = 0x09E2;

Editor.Margins.Margin1.Width = 30;
Editor.NativeInterface.SendMessageDirect(SCI_SETMARGINTYPEN, 1, 4);
for (int i = 0; i < Editor.Lines.Count; i++)
{
    Editor.NativeInterface.SendMessageDirect(SCI_MARGINSETTEXT, i, i.ToString());
}

Is apparently what I have to add. Although I tried on different events and it didn't succeed at printing custom line numbers.