how to force redraw?

[Wakalaka]

Can you elaborate? I'm new to GB-PVR plugin development. My code has the following (I used the plugin example skeleton, stocks plugin, and weather plugin to get to the point I'm at now). I just need to force a redraw when my timer event occurs.

public bool needsRendering()
{
// TODO: Add needsRendering implementation
return false;
}

// TODO: Replace with your render implementation
public System.Drawing.Image render(out bool requiresMoreRendering)
{
requiresMoreRendering = false;