Tcl/Tk Documentation > TkLib > Tk_Main
Tk_Main(argc, argv, appInitProc)
- int argc (in)
- Number of elements in argv.
- char *argv (in)
- Array of strings containing command-line arguments.
- Tcl_AppInitProc *appInitProc (in)
- Address of an application-specific initialization procedure. The value for this argument is usually Tcl_AppInit.
Normally each application contains a small main function that does nothing but invoke Tk_Main. Tk_Main then does all the work of creating and running a wish-like application.
When it is has finished its own initialization, but before it processes commands, Tk_Main calls the procedure given by the appInitProc argument. This procedure provides a “hook” for the application to perform its own initialization, such as defining application-specific commands. The procedure must have an interface that matches the type Tcl_AppInitProc:
typedef int Tcl_AppInitProc(Tcl_Interp *interp);AppInitProc is almost always a pointer to Tcl_AppInit; for more details on this procedure, see the documentation for Tcl_AppInit. application-specific initialization, command-line arguments, main program