Print Page - Returning strings from a function

Title: Returning strings from a function
Post by: MushroomHead on 2009-Jun-25

Code (glbasic) Select


	b$ = test2()
	PRINT b$, 100, 100
	SHOWSCREEN
	MOUSEWAIT
	END

FUNCTION test2:
	LOCAL a$
	a$ = "HelloWorld"
	RETURN a$
ENDFUNCTION

Why doesn't this work?

Title: Re: Returning strings from a function
Post by: Kitty Hello on 2009-Jun-25

FUNCTION test2$:

Title: Re: Returning strings from a function
Post by: MushroomHead on 2009-Jun-25

Thanks, one other question, when exporting strings as a DLL is this correct?

Code (glbasic) Select


EXPORT test2$

FUNCTION test2$:
	LOCAL a$
	a$ = "HelloWorld"
	RETURN a$
ENDFUNCTION

Is this right? When dumping the DLL I get a function called test2_Str but when I call this function I get a crash. How are strings returned i.e. are they like "C" strings with a null "\0" terminator?

This is how I call it in powerbasic :-

Code (glbasic) Select


DECLARE FUNCTION test2 CDECL LIB "test.dll" ALIAS "test2_Str" () AS STRING

FUNCTION PBMAIN () AS LONG
    MSGBOX test2()
END FUNCTION

Title: Re: Returning strings from a function
Post by: Schranz0r on 2009-Jun-25

you receive a 100% C++ const char*

GLBasic forum

Main forum => GLBasic - en => Topic started by: MushroomHead on 2009-Jun-25