I'm making some progress on a simple composition, but still having major
problems with QCCompositionLayer. I can finally converse with its
in/outputs, no thanks to the totally erroneous documentation.
I currently have a very simple problem. I want to set a constant flag
in the composition to hide/unhide a slider in my control panel, depending on
the particular composition chosen. I have tried a boolean splitter and
logic gates. I set the inputs in the composition and publish the output.
Yes, I can read it correctly, long after the layer is installed and the
composition is running. However, the splitter or the gate function does not
compute until it is fully running, so I get the wrong value if I try to read
it immediately after it supposedly starts. Is there any way to force it to
compute and be correct initially? Is there any better way to set an
initially-readable output flag value?
Another problem. I created a 5 sec. timer to switch output images. I
know the timer runs, but in the layer it does not change the displayed image
unless I twiddle some parameter, such as the image size slider or the
position of the layer. It works correctly when running in QC.
QCCompositionLayer is one squirrelly beast.
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