ProcedureDLL.s just return 1º char of string

[skinkairewalker]

Good night people !
I'm creating "shared libraries" for some ready-made engines (GameMaker Studio2 & AppGameKit), both support external libraries ...

Here is an example of a library I am doing:

Code: Select all

DeclareDLL.s SC_Init()

ProcedureDLL.s DLL_Init(Param1.i,Param2.i)
  MessageRequester(PeekS(Param1,-1,#PB_UTF8),PeekS(Param2,-1,#PB_UTF8))
  ProcedureReturn "HelloWorld"
EndProcedure 

I tested this same library on both engines, and it worked ....

to receive strings inside the engines to PurebasicDLL I should use the command: PeekS (PARAM_NAME, -1, # PB_UTF8) ...
but when I need to "return" strings to these two engines, only the first character is sent ...

follow the screenshots

http://prntscr.com/ly4rry
http://prntscr.com/ly4s5c

Is there any way to resolve this in code or is this internal problem in DLL processing of engines?

[skywalk]

PureBasic strings are unicode, [H][0][e][0][l][0][l][0][o][0], etc.
Your receiving app is probably expecting Ascii, and terminates on the [0] byte.
Try returning a pointer to a Global memory buffer holding an Ascii string.

*b = Ascii("Hello")
ProcedureReturn *b
Remember to FreeMemory *b at end of its use.

[skinkairewalker]

PureBasic strings are unicode, [H][0][e][0][l][0][l][0][o][0], etc.
Your receiving app is probably expecting Ascii, and terminates on the [0] byte.
Try returning a pointer to a Global memory buffer holding an Ascii string.

*b = Ascii("Hello")
ProcedureReturn *b
Remember to FreeMemory *b at end of its use.

Works Fine !!! Thanks you SkyWalk <3

[#NULL]

Make sure you know what the string format actually is. Receiving utf-8 and returning ascii seems unlikely to me. Try passing and returning special characters like € to see which works.