September 2009
Intermediate to advanced
816 pages
19h 38m
English
Content preview from Tcl and the Tk Toolkit, Second Edition
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36. Extensions
Chapter 30 compared the approach of embedding Tcl into an existing application versus extending Tcl with custom commands. It’s usually easier, and faster in terms of programmer time, to code a few extensions in C for an application written in Tcl, rather than write the application in C and call Tcl scripts from it. Writing an extension minimizes the amount of C programming compared to Tcl programming, making for better use of programmer time.
This chapter explains how to write a Tcl extension in C.
36.1 Functions Presented in This Chapter
• CONST char *Tcl_PkgPresent(Tcl_Interp *interp, CONST char *name, CONST char *version, int exact)CONST char *Tcl_PkgRequire(Tcl_Interp *interp, CONST char *name ...
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