How do I build a dll that contains a shared data segment? Books I've been reading mention the #pragma data_seg() directive, but this doesn't seem to be supported by Builder.
Builder 4 does not support the #pragma data_seg() directive, but there are compiler switches that will, along with the proper .def file, allow you to do this.
You will have to put the data you want shared in it's own source file and use the -zR and -zT compiler switches. These switches change the data segment name and class name for whatever source file they are used in. You will have to initialize the data you want to share, as uninitialized data is automatically moved to the default data segment. You must also create a .def file for your dll that tells the linker to give that segment the shared property.
There are four files in this example:
Last Modified: 10-MAY-00