Calling Qt library from non-Qt C++ client

[QPlace]

I will have to periodically call my exported function from either excel or non-Qt-gui app to get the data I needed (most likely using some timers), but I don't understand your suggestion about processEvents. Can you illustrate it with some pseudo-code?

[wysota]

It can be used instead of an event loop. So you can treat this:

app.exec();

app.exec();

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and this:

while(1) app.processEvents();

while(1) app.processEvents();

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as more or less equivalents. With the latter you would simply integrate Qt's event loop with the one from the calling app. This has to be initiated from the calling side though (some heartbeat or whatever).