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Manpages Tk_MainSection: Tk Library Procedures (3)Updated: 4.0 Index Return to Main Contents NAMETk_Main - main program for Tk-based applicationsSYNOPSIS#include <tk.h> Tk_Main(argc, argv, appInitProc) ARGUMENTS
DESCRIPTIONTk_Main acts as the main program for most Tk-based applications. Starting with Tk 4.0 it is not called main anymore because it is part of the Tk library and having a function main in a library (particularly a shared library) causes problems on many systems. Having main in the Tk library would also make it hard to use Tk in C++ programs, since C++ programs must have special C++ main functions. 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:
KEYWORDSapplication-specific initialization, command-line arguments, main program
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