I'm using a form for some simple animation using GDI. I use the Paint event but the form doesn't refresh on its own.

What should i do to refresh it atleast every second?

Override forms Paint event and call:

this.Invalidate(true);

This will repaints you complete form including the childs that are placed on that form

In addition to calling the Invalidate() method, you might also try calling Update() which forces the control to redraw the invalidated areas rather than waiting for WM_PAINT message to arrive in the message queue.

Override forms Paint event and call:

this.Invalidate(true);

This will repaints you complete form including the childs that are placed on that form

In addition to calling the Invalidate() method, you might also try calling Update() which forces the control to redraw the invalidated areas rather than waiting for WM_PAINT message to arrive in the message queue.