[solved] GUI: dynamic return values

[Celtic_Minstrel]

I see. Since you were writing a guide on the wiki, it might be a good idea to at least try the alternate file method so you can add that to the guide, though someone else could always do it later.

For guide purpose it can be converted with wml.tostring.

That's true! That method won't preserve complex procedures where you built up the dialog with multiple variables, but for simple dialogs done all in one go, it's quite a reasonable method.

[white_haired_uncle]

For guide purpose it can be converted with wml.tostring.

That's very cool, I've included that as a suggestion. Thanks.

[white_haired_uncle]

If you're running in 1.17, you can use the wesnoth.print_attributes function (documented here) to determine what properties are valid and exist in any variable.

This morning I was trying to figure out text_boxes. Couldn't find any docs or examples that show how to actually get the value back, and trying to access things like gold_tb.value or gold_tb.label throw up an error and leave the game in a mostly unusable state so I had to restart every time I tried something new.

print_attributes showed me "text", which was the missing piece.

Cool.

Not sure about the output for a slider, however. Many attributes (e.g. right_offset) missing, a couple different (max_value vs maximum_value). Maybe I just don't understand keys vs attributes vs variables.

[Celtic_Minstrel]

The output for a slider is value. Both text and value are documented here.

The output from print_attributes is the runtime API, and currently only provides the most essential properties. If there's a property exposed in the WML that you'd like to be able to read or change at runtime, you can open a feature request asking to have it exposed in the Lua API.

For the ones that are named differently in Lua and WML, that's probably a mistake and we should correct it.

[white_haired_uncle]

Ah. I was looking for something that would tell me what the attributes of a text_box were. Didn't think of looking at widget attributes for which one(s) apply to a text box. Have to remember that.

[Celtic_Minstrel]

Yeah, the widgets page documents (or at least is intended to document) all possible attributes of all widgets.