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BSTRING Conversion

BSTRING Conversion

BSTRING Conversion

Does anyone have code or a utlilty to convert a string to a BSTRING.

RE: BSTRING Conversion

I think there is an inbuilt clarion function for it and is documented in the ABDST.clw in the \c55\libsrc directory.

     BString2String(LONG, LONG, BOOL),NAME('Cla$BString2String')

BSTRING's are equated as LONG integers in Clarion.

RE: BSTRING Conversion

Since I could not find any more info on the inbuilt function, I have written a function to do it using 2 API functions.

EMBED : Inside the GLOBAL Map

     lstrlenW(long lpWString),signed,proc,pascal

If inpBSTR is the BSTRING and outCSTR is the CSTRING to be returned :


ReqLen      LONG,AUTO
CharWritten LONG,AUTO



  ReqLen = lstrlenw(inpBSTR)
  IF ~ReqLen THEN RETURN(False).
  IF SIZE(outCSTR)-1 < ReqLen THEN RETURN(False).

  CharWritten = WideCharToMultiByte(0, 0, inpBSTR, ReqLen, ADDRESS(outCSTR), SIZE(outCSTR)-1, 0, 0)
  IF ~CharWritten THEN RETURN(False).

  outCSTR[Charwritten+1] = '<0>'


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