AVR-Chat

Hi,

I haven't played with VB but this may be worth looking at.
The above dll will be created with a C++ mangled export and VB may not
understand it.
To create the entry point with a standard C name add a .def file to the link
process.

Put this line in the project options for the link. ie.Use menu Project --->
Settings and select the LINK tab
/def:".\convert.def"

Create a def file in the source folder called CONVERT.DEF with the contents
LIBRARY CONVERT
DESCRIPTION 'Convert DLL'

EXPORTS
     _conv_8to7

Good luck...

  -----Original Message-----
  From: jay marante [mailto:jaythesis@yahoo.com]
  Sent: Thursday, 12 August 2004 10:25 a.m.
  To: avr-chat@yahoogroups.com
  Subject: [AVR-Chat] OT: .DLL coded in Visual C++, called in VB6; HELP!


  sorry for the OT but i really have a hard time making this program run. im
new in VB.

  i have a code done in VB6. now, i want to manipulate every element
(character) of a string variable. i want to shift its bits to the left. my
professor told me that it can't be done in VB, instead, he suggests to make
a .DLL file in C++. i don't know anything about C++, but i have knowledge in
C since i've been doing my AVR project.
  what i did was, chose WIN32 DLL file, then chose simple DLL. i code my
routine inside the .CPP file. and compile the program, and build the .DLL
file, as what i can see under the PROJECT taskbar. now, i declared a module
in VB where i put the declaration of the function and the .DLL file. i
called the the function in my VB code but there's an error. it says "Can't
find DLL entry point". what am i doing wrong?

  attached is my code in C++. its supposed to get the string input in the
text box in VB which will be send to the serial port, connected with a nokia
phone, send its message to another mobile. before sending it to the com
port, i have to manipulate its input. that's the reason for the .DLL file.
just run the program. can somebody please help me. tips and smaples are
highly appreciated. i tried to google the net but there are lots of examples
and i don't know when to use them. and also, how am i going to declare and
call it in VB?

  thank a lot.
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