Possible Bug: slider wont work w/o gdispImageOpenFile

[doc_rob]

I am compiling some samples with uGFX2.8, ChibiStudio and ChibiOS 17.6, gcc6.3 (latest Version of ChibiStudio). I started out with the Disco 429 sample and went through the demos in the demo dir of ugfx. Everything worked (gdisp: basic, pixmap, streaming, gwin: basic, button, checkbox, console, frame, graph, imagebox, label) but the slider demo wasn't working - the sliders where shown but no action on the sliders. After a while i found out that the sliders started working if i add one line from the Disco-429 project: gdispImageOpenFile(&img1, "smiley.png"); which is IMO weird because i don't need that image anywhere.

[inmarket]

Make sure you do a make clean.

Adding that one line should have caused a compile error as img1 would not be defined. As you are not getting that error message something is going wrong with the build - hence the comment above about doing the make clean.

[doc_rob]

I am sorry i had a thread running and that screwed up the slider (the input from the touchpad was not doing anything). Can you point me to a documentation where the correct thread usage is?

Thanks.