I've created a window that loads a PNG image (as a splash screen) in the 
constructor. However, if I call show() immediately after the constructor 
returns, the image is not yet ready to display - it seems there the image is 
still being decompressed / rendered. If I call fl_check() several times, or 
just dropp to Fl::run(), eventually the image renders.

Is there a way to know when the image is ready to render?

Thanks,
Robb.

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