How to access string in a module that is set in configuration directive?

[ohaya]

Hi,

I got my 1st module working and now I need to add support for a configuration 
directive that sets a string that my module needs in various places, i.e., if 
my directive is "SetMyVar", and httpd.conf has:

SetMyVar    "foo123"

then, in my module, I need to able to access the string, "foo123", that got set 
via the "SetMyVar" directive.  This directive would only be used at the server 
level.

I think that I know how to do the code to set the variable into my module, but 
the question that I have is how do I *access* it after it is set?

Here's the code I have to handle the directive:

/*
 * Stuff for Directive handling
 */ 

// Struct for Directives
typedef struct txt_cfg {
    const char * MyVar;
} txt_cfg;


// Function to get GxInterceptorURL
static const char * txt_set_MyVar(cmd_parms* cmd, void* cfg, const char* val) {
    printf("In set_MyVar: Setting MyVar to [%s]\n", val);
    ((txt_cfg*) cfg)->MyVar = val;
} // end txt_set_MyVar()


//
static const command_rec txt_cmds[] = {
    AP_INIT_TAKE1("SetMyVar", txt_set_MyVar, NULL, OR_ALL,
            "This is MyVar"),
    { NULL }
};
.
.
.
module AP_MODULE_DECLARE_DATA my_module =
{
    STANDARD20_MODULE_STUFF,
    NULL,                       /* dir config creater */
    NULL,                       /* dir merger --- default is to override */
    NULL,                       /* server config */
    NULL,                       /* merge server configs */
    txt_cmds,                       /* command apr_table_t */
    register_hooks              /* register hooks */
};


Can anyone tell me how, in my module code, I can access that "MyVar" string?

Thanks,
Jim