Can't get new set/get lexer to work

[topwizpr...@gmail.com]

I'm updating my app from 4.2 to 5.2.3. It is written in PowerBuilder which is similar to VB6 in how it interacts with DLL files.

I've got everything working except Get/Set Lexer & Get Language.

External function declaration for messages with two numeric arguments:

Function long SciSend ( longptr hSciWnd, ulong iMessage, &
    longptr wParam, Ref longptr lParam &
    ) Library "Scintilla.dll" Alias For "Scintilla_DirectFunction"

This always returns zero:

ll_lexer = SciSend(ip_hSciWnd, SCI_GETLEXER, 0, unused)

This always returns zero:

newlexer = SCLEX_SQL
ll_return = SciSend(ip_hSciWnd, SCI_SETILEXER, 0, newlexer)

This aborts:

ll_lexer = SciSend(ip_hSciWnd, SCI_GETLEXER, 0, unused)

[Neil Hodgson]

topwizpr…@gmail.com:

This always returns zero:

newlexer = SCLEX_SQL
ll_return = SciSend(ip_hSciWnd, SCI_SETILEXER, 0, newlexer)

   SCI_SETILEXER takes a pointer to a lexer, not a lexer ID number.

   Scintilla 5 moved lexer features into a new project and DLL: Lexilla. You will need to load the Lexilla DLL and ask it for a lexer then pass the result to SCI_SETILEXER.

   Migrating to Scintilla 5 and Lexilla is documented at

https://scintilla.org/Scintilla5Migration.html

   Neil

[topwizpr...@gmail.com]

I have it working now, thanks!

What are the return values for Scintilla_DirectFunction? I have only seen zero. What is returned if the action fails?

[Neil Hodgson]

topwizpr…@gmail.com:

> What are the return values for Scintilla_DirectFunction? I have only seen zero. What is returned if the action fails?

The return value depends on the API - sometimes its an integer value, sometimes its a pointer, and other times its nothing.

If an action fails the status code may be set, which can be retrieved with SCI_GETSTATUS. There is also a function pointer that can be used to perform an action and retrieve the status code in one call.

https://scintilla.org/ScintillaDoc.html#SCI_GETSTATUS
https://scintilla.org/ScintillaDoc.html#SCI_GETDIRECTSTATUSFUNCTION

Neil