hi, and welcome.
no, AppGameKit has very little of that "out of the box" and yes, TopGUI is DBPro only.
OryGUI
is a large framework (tho i have no personal experience with it except knowing that the creator has done a lot of work on it).
another is
Nuklear by MadBit. i don't know how evolved it is, either. i know others were successfully implementing it but have not had the opportunity to test any project that utilizes it. and, as a plugin, it would be for windows only (not sure what platforms you are considering developing for).
madbit has also written a (famously useful) win plugin called
FileExplore that, i believe, has calendar functionality.
otherwise, if ALL you need is " buttons, Textboxes, text area, Calendar, Comboboxes ", that wouldn't be too difficult to code for yourself and i'm sure we could all help tackle the elements separately. (buttons, text boxes and text area being the simplest with some of that already built into AppGameKit, and the others only slightly tougher to produce).
finally, i've renamed this thread to something more useful than "newbie question" and added "GUI" to Nuklear's title so that it shows on
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