Nonvisual extension example
To illustrate the principles
involved in building and using an extension, this chapter starts
with a sample application that uses a PowerBuilder extension to
perform a simple arithmetic operation. Ordinarily, this is not a
task that needs PBNI, but it is used here to make the basic process
clear. The rest of this chapter describes building extensions in
more detail.
PBX file suffix PowerBuilder
extensions are DLL files but typically use the file extension .pbx instead
of .dll. Your extension is compiled into a
PBX file by default if you use the wizard described in Appendix A, "Using
the Visual Studio Wizards"
For more realistic examples, see the PowerBuilder Code Samples Web site
.
The following sample application has two main steps: