int*major(out)
Major version number of the Tcl library.
int*minor(out)
Minor version number of the Tcl library.
int*patchLevel(out)
The patch level of the Tcl library (or alpha or beta number).
Tcl_ReleaseType*type(out)
The type of release, also indicates the type of patch level. Can be
one of TCL_ALPHA_RELEASE, TCL_BETA_RELEASE, or
TCL_FINAL_RELEASE.
DESCRIPTION
Tcl_GetVersion should be used to query the version number
of the Tcl library at runtime. This is useful when using a
dynamically loaded Tcl library or when writing a stubs-aware
extension. For instance, if you write an extension that is
linked against the Tcl stubs library, it could be loaded into
a program linked to an older version of Tcl than you expected.
Use Tcl_GetVersion to verify that fact, and possibly to
change the behavior of your extension.
If may pass a NULL for any of the arguments. For instance if
you do not care about the patchLevel of the library, pass
a NULL for the patchLevel argument.