Loads a DCL file
load_dialog function searches for files according to the AutoCAD library search path.The
unload_dialog. An application can load multiple DCL files with multiple load_dialog calls.This function is the complement of
A string that specifies the DCL file to load. If the dclfile argument does not specify a file extension, .dcl is assumed.
dcl_id) if successful, or a negative integer if load_dialog can't open the file. The dcl_id is used as a handle in subsequent new_dialog and unload_dialog calls.A positive integer value (