sorry for being unclear in reporting this problem, but I only received information from another user and, by running some tests, I noticed that actually no pixels were displayed. I did not have time to do more extensive tests. I also tried patchcomposite, but the problem remains. I will do more test asap, maybe using sashimi.
@TSK Can ListBrowser shows trasparent or free form images?
@BroadBlues
I have a Windows where i draw some images that changes from time to time, arragend in a sort of grid. Each image can be max 128x128. The images should be interactive (clickable).
I don't use SDL1 since a long time, some special precautions are needed to use both SDL1 (compositing version) and SDL2 on Uwin cross compiler environment?
Are the SDL1 with compositing libs (user) available somewhere?