Loads of LostFocus/GainedFocus events

[slotdev]

Hi

I am getting spammed with loads of LostFocus/GainedFocus events every second in my app. I am drawing to 3 windows (two of which are touchscreens), and generally I am getting this:

LOSE FOCUS WINDOW 1
LOSE FOCUS WINDOW 2
GAIN FOCUS WINDOW 1
GAIN FOCUS WINDOW 2

The result of this, is, the first time I touch one window, then another, the screens flicker for a short time.

Does anyone have any ideas? This is a W7 PC.

Thanks

[eXpl0it3r]

Chances are high, that it's a driver issue...

What kind of PC is it and what kind of display?
Are the drivers for the input and graphic card up to date?

[slotdev]

Hi

This is a kiosk style application, so I can't update the drivers etc. But PC specs are:

Intel Core 2 Duo @ 2.6 GHZ
4GB RAM
Radeon E6460 (512MB)

Displays are 2x 1680x1050 (1 is touchable) and 1x 1680x342 (touchable)

[slotdev]

Capturing all Windows messages to stderr in text form revealed the difference between running the game, pressing the screen, and running the game and NOT pressing the screen shows a WM_CAPTURECHANGED message (when screen is pressed), which according to MSDN, suggests you should redraw the screen.

Watch this space.

[slotdev]

That has fixed it. You can redraw the screen, and (maybe or) just bring your window to the top/topmost on receiving this message.

[eXpl0it3r]

I'm not that I followed you there. How's the other message related to Gain/LostFocus? And what exactly is the fix?