To Load the Actions and Data-Typing Database

    if (DtInitialize(XtDisplay(shell), shell,

argv[0],ApplicationClass)==False) {
 			/* DtInitialize() has already logged an appropriate error msg */
         			exit(-1);
    }

Use the DtDbLoad() function to load the actions and data-typing database.

DtDbLoad(void)

DtDbLoad() reads in the action and data-typing database. This function determines the set of directories that are to be searched for database files (the database search path) and loads the *.dt files found into the database. The directory search path is based on the value of the DTDATABASESEARCHPATH environment variable and internal defaults.