Windows CALLBACK Must Be Exported

  PRODUCT  :  Borland C++                            NUMBER  :  661

  VERSION  :  2.0

       OS  :  PC DOS

     DATE  :  August 12, 1992                          PAGE  :  1/1

    TITLE  :  Windows CALLBACK Must Be Exported

  All callback functions must be exported (unless you  use  the -WS

  Smart Callbacks option).  You can either export  via  the _export

  keyword in the function definition (i.e., on the prototype if one

  is present) or by listing the function in the EXPORTS  section of

  the .def file.

  Following are the appropriate  command  line  options (in the IDE

  under  menu Options | Compiler | Entry/Exit Code):

     1.  If function definition includes keyword _export

         a. -W (Windows all functions exportable)

         b. -WE (Windows explicit function exported)

     2.  If function listed in .def file

         a. -W (Windows all functions exportable)

     3.  Compile with -WS (Windows Smart Callbacks)

         {won't work when building DLL's, see documentation for

          special effects of this option}

     4.  For building DLL's, use:

          a. -WD (Windows DLL all functions exportable)

          b. -WDE (Windows DLL explicit functions exported)

  DISCLAIMER: You  have the right to use this technical information

  subject to the terms  of  the  No-Nonsense License Statement that

  you received with  the  Borland product to which this information

  pertains.