Nice work. Here is the way to get rid of "Warning: Cannot prove that 'result'
is initialized:
1\. Declares mWhichButton as _wCommandID_ type and do the necessary
modification.
wMyMsgBox = ref object of wFrame
mWhichButton: wCommandID
...
listRuturn: seq[wCommandID] = @[]
Run
2\. In proc show(), return wId(self.mWhichButton).
proc show(self: wMyMsgBox): wId {.inline, discardable.} =
self.showModal()
return wId(self.mWhichButton)
Run
3\. That's all.
In wNim, command ID/control ID/menu ID are the type called **wCommandID**.
However, we often need to use **enum** to declare the command ID. So convert
enum to wCommandID (and of course, int to wCommandID) in wNim is automatic by a
public converter.
Your show() proc returns a **wId** type (it in fact the enum type), so you need
to convert it from wCommandID back to wId.
