/* * tkStubImg.c -- * * Stub object that will be statically linked into extensions that wish * to access Tk. * * Copyright (c) 1999 Jan Nijtmans. * Copyright (c) 1998-1999 by Scriptics Corporation. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tkStubImg.c,v 1.1.1.1 2007/07/10 15:05:17 duncan Exp $ */ #include "tcl.h" /* *---------------------------------------------------------------------- * * Tk_InitImageArgs -- * * Performs the necessary conversion from Tcl_Obj's to strings * in the createProc for Tcl_CreateImageType. If running under * Tk 8.2 or earlier without the Img-patch, this function has * no effect. * * Results: * argvPtr will point to an argument list which is guaranteed to * contain strings, no matter what Tk version is running. * * Side effects: * None * *---------------------------------------------------------------------- */ #ifdef Tk_InitImageArgs #undef Tk_InitImageArgs #endif void Tk_InitImageArgs(interp, argc, argvPtr) Tcl_Interp *interp; int argc; char ***argvPtr; { static int useNewImage = -1; static char **argv = NULL; if (argv) { tclStubsPtr->tcl_Free((char *) argv); argv = NULL; } if (useNewImage < 0) { Tcl_CmdInfo cmdInfo; if (!tclStubsPtr->tcl_GetCommandInfo(interp,"image", &cmdInfo)) { tclStubsPtr->tcl_Panic("cannot find the \"image\" command"); } if (cmdInfo.isNativeObjectProc == 1) { useNewImage = 1; /* Tk uses the new image interface */ } else { useNewImage = 0; /* Tk uses old image interface */ } } if (useNewImage && (argc > 0)) { int i; argv = (char **) tclStubsPtr->tcl_Alloc(argc * sizeof(char *)); for (i = 0; i < argc; i++) { argv[i] = tclStubsPtr->tcl_GetString((Tcl_Obj *)(*argvPtr)[i]); } *argvPtr = (char **) argv; } }