globalvar.C

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/*
 * Copyright (c) 2024
 *      Side Effects Software Inc.  All rights reserved.
 *
 * Redistribution and use of Houdini Development Kit samples in source and
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 * following conditions are met:
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#include <UT/UT_DSOVersion.h>
#include <CH/CH_LocalVariable.h>
#include <CMD/CMD_Manager.h>

static bool
getMSValueFloat(fpreal &f, int varid, int thread)
{
    f = CHgetManager()->getEvaluateTime(thread) * 1000.0;

    return true;
}

static bool
getProjValueStr(UT_String &str, int varid, int thread)
{
    str.harden("My Project Name");
    return true;
}

void
CMDextendLibrary(CMD_Manager *mgr)
{
    static const char *theProjName = "PROJ";
    static const char *theMSName = "MS";

    // Pass zero for the index value int the CH_LocalVariable initializers,
    // since it will just be replaced anyway. The actual variable id is
    // returned, in case you want several variables to be evaluated through the
    // same function.  In this case we don't care, so just throw the values
    // away.
    mgr->addVariable({theProjName, 0, CH_VARIABLE_STRVAL},
            getProjValueStr, NULL, NULL);
    mgr->addVariable({theMSName, 0, CH_VARIABLE_TIME},
            NULL, getMSValueFloat, NULL);
}