closing the FINDREPLACE structure

I am using the windows FINDREPLACE structure to search through a text editors text, but I want it to close when it finds something, I have written the function already to tell if something can be found, but I can't figure out how to close the find window. Any ideas?
I wrote in the default case like this:

/*Process "Find-Replace" messages */
default:
if (message == messageFindReplace){

pfr = (LPFINDREPLACE) lParam;

if (pfr->Flags & FR_FINDNEXT){
findstring(hwnd,search,&xCaret,&yCaret,curlinenumber);
/*CLOSE HERE!*/
}

if (pfr->Flags & FR_DIALOGTERM)
hDlgModeless = NULL;

return (0);
}
break;