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- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt((((3333TTTTccccllll)))) TTTTccccllll____AAAAppppppppIIIInnnniiiitttt((((3333TTTTccccllll))))
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- NNNNAAAAMMMMEEEE
- Tcl_AppInit - perform application-specific initialization
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ####iiiinnnncccclllluuuuddddeeee <<<<ttttccccllll....hhhh>>>>
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- int
- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt(_i_n_t_e_r_p)
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- Tcl_Interp *_i_n_t_e_r_p (in) Interpreter for the application.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt is a ``hook'' procedure that is invoked by the main programs
- for Tcl applications such as ttttccccllllsssshhhh and wwwwiiiisssshhhh. Its purpose is to allow new
- Tcl applications to be created without modifying the main programs
- provided as part of Tcl and Tk. To create a new application you write a
- new version of TTTTccccllll____AAAAppppppppIIIInnnniiiitttt to replace the default version provided by
- Tcl, then link your new TTTTccccllll____AAAAppppppppIIIInnnniiiitttt with the Tcl library.
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- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt is invoked after by TTTTccccllll____MMMMaaaaiiiinnnn and TTTTkkkk____MMMMaaaaiiiinnnn after their own
- initialization and before entering the main loop to process commands.
- Here are some examples of things that TTTTccccllll____AAAAppppppppIIIInnnniiiitttt might do:
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- [1] Call initialization procedures for various packages used by the
- application. Each initialization procedure adds new commands to
- _i_n_t_e_r_p for its package and performs other package-specific
- initialization.
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- [2] Process command-line arguments, which can be accessed from the Tcl
- variables aaaarrrrggggvvvv and aaaarrrrggggvvvv0000 in _i_n_t_e_r_p.
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- [3] Invoke a startup script to initialize the application.
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- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt returns TCL_OK or TCL_ERROR. If it returns TCL_ERROR then it|
- must leave an error message in _i_n_t_e_r_p->_r_e_s_u_l_t; otherwise the result is |
- ignored. |
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- In addition to TTTTccccllll____AAAAppppppppIIIInnnniiiitttt, your application should also contain a |
- procedure mmmmaaaaiiiinnnn that calls TTTTccccllll____MMMMaaaaiiiinnnn as follows: |
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- Tcl_Main(argc, argv, Tcl_AppInit); |
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- The third argument to TTTTccccllll____MMMMaaaaiiiinnnn gives the address of the application- |
- specific initialization procedure to invoke. This means that you don't |
- have to use the name TTTTccccllll____AAAAppppppppIIIInnnniiiitttt for the procedure, but in practice the |
- name is nearly always TTTTccccllll____AAAAppppppppIIIInnnniiiitttt (in versions before Tcl 7.4 the name |
- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt was implicit; there was no way to specify the procedure |
- explicitly). The best way to get started is to make a copy of the file |
- ttttccccllllAAAAppppppppIIIInnnniiiitttt....cccc from the Tcl library or source directory. It already |
- contains a mmmmaaaaiiiinnnn procedure and a template for TTTTccccllll____AAAAppppppppIIIInnnniiiitttt that you can |
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- PPPPaaaaggggeeee 1111
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- TTTTccccllll____AAAAppppppppIIIInnnniiiitttt((((3333TTTTccccllll)))) TTTTccccllll____AAAAppppppppIIIInnnniiiitttt((((3333TTTTccccllll))))
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- modify for your application.
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- KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS
- application, argument, command, initialization, interpreter
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- PPPPaaaaggggeeee 2222
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