Getting refresh to work properly

[Guest clivewilliams]

New SPV developer alert! Just starting to get to grips with the SDK - have hit a slight problem that people might be able to give me a few pointers with. I'm writing (my first SPV prog!) a little reversi program - so far so good, can paint the board, can capture key sequences to move a cursor around, etc. (writing the game itself should be quite easy compared to figuring out that lot!).

My problem is when I move my cursor from one board cell to another (highlighted in another colour), the screen doesn't refresh correctly. If I go to the home screen then return, forcing a repaint, the screen displays correctly, and indeed it displays correctly when it first starts up. But it won't automatically repaint itself, bless it.

My code is based on an amalgam of the SDK's KeyTest app for capturing key strokes and DrawingText (essentially the screen is drawn by PolyLine, Polygon and Ellipse calls). Probably quite a buggy amalgam, as I'm learning about the event model as I go. I've tried various things:

- Squirting WM_PAINT events everywhere

- ShowWindow/UpdateWindow... etc

... but nothing. Any pointers/clues from anyone?

Cheers,

Clive

[Guest Arisme]

If you're using GDI (which seems to be the case :wink:) you can force a redraw with UpdateWindow or InvalidateRect - be sure to have your drawing code processed in the WM_PAINT management (in a "smart" way to avoid intensive flickering)

[Guest clivewilliams]

Hmmm... tried it... still no joy. I feel like I must be doing something fundamentally wrong in event handling.