Hello IUP peoples, I am running into a few interesting issues with high DPI scaling and just kind of looking for ideas on how to handle this kind of thing.
I have a number of custom drawn "controls" (really just IupCanvas with CD drawing code attached) and a few of them store spatially arranged objects. Currently those are stored in pixel values, which in hindsight may not have been the best idea -- but I started writing this application in 2017 when (at least for me) high DPI monitors weren't quite as common as they are now. My workaround idea is to scale those pixel values up when loading and down when saving using the SCREENDPI global attribute, but this would result in less-than-ideal behavior if the user moves the window between two screens with different DPI values. I suppose I could then recalculate all the in-memory values after every MOVE_CB on the main window. This would only work if the SCREENDPI value updates depending on... the currently active monitor, which it doesn't seem to imply at all that it would so maybe this wouldn't actually change anything for multiple monitor setups. Maybe this is the best I can do (and essentially ignore multiple monitors), but I wanted to see if there were any ideas or tips from anyone who had dealt with this already. Thanks! IJR
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