Category : C Source Code
Archive   : BCPPTECH.ZIP
Filename : TI661.ASC

PRODUCT : Borland C++ NUMBER : 661
VERSION : 2.0
OS : PC DOS
DATE : February 25, 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)