Purpose: document what one needs to do in a C++ application
Go invoke Tcl script commands (i.e. ones without a directly
invokable API).


[[Can someone provide a pointer to some sample c++ code
that interacts with Tcl?]]

[[It's really, really easy, easier than this page is yet making apparent.  It'll take work, though, to show how easy it is.]]

----

Example: [TclODBC] is an extension written in C++.

You can evaluate Tcl scripts, call Tcl functions and write
new Tcl commands in C++ just like in C.  The Tcl headers are
safe for direct use in C++.  The only gotcha for extension
writers is that the init functions must be declared 'extern "C"'
so that the compiler leaves their names alone for the [load]
command.

Also with command-line compilers (like [GCC]) be sure to use the
C++ compiler frontend (like ''g++'') for linking so that you pick
up the C++ runtime support automatically. 

Obviously everybody that interfaces with Tcl from C++
encapsulates some of the Tcl objects in corresponding C++
classes.  [BR] doesn't know of any effort yet to provide
standard all-purpose C++ wrapper classes for this.


----
See also [C++].

----
[Category Language]