> 1. Mouse moviment behavior: > When move mouse to end control, Windows automatically, scroll items to down. *> Is possible control the speed?*
Not that I know of. *> Is possible control the number of items, that will be scrolled?* What you can control is the number of visible items with the VISIBLEITEMS attribute. But the scroll depends on the ratio of total items x visible items, and I think that scrollbar is not configurable by the application. 2. MSDN says: https://docs.microsoft.com/en-us/windows/win32/inputdev/wm-mousemove "If an application processes this message, it should return zero." At src/win/iupwin_list.c (1557) *WM_MOUSEMOVE: is processed, but IUP lacks to return zero, why? * In the general case, yes it must return 0. But in this case we are sharing the processing of WM_MOUSEMOVE with the internal COMBOBOX implementation, so notice that we will leave that processing for the control original WinProc. Best, Scuri Em qua., 15 de jul. de 2020 às 23:16, Ranier Vilela <ranier_...@hotmail.com> escreveu: > Hi Scuri, > > Two questions about IupList with Windows. > DROPDOWN=YES > EXPAND=HORIZONTAL > > 1. Mouse moviment behavior: > When move mouse to end control, Windows automatically, scroll items to > down. > Is possible control the speed? > Is possible control the number of items, that will be scrolled? > > 2. MSDN says: > https://docs.microsoft.com/en-us/windows/win32/inputdev/wm-mousemove > "If an application processes this message, it should return zero." > > At src/win/iupwin_list.c (1557) > WM_MOUSEMOVE: is processed, but IUP lacks to return zero, why? > > regards, > Ranier Vilela > > _______________________________________________ > Iup-users mailing list > Iup-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iup-users >
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