When there is no data in the EDIT control, the window of Checkbox is set to not be available.

Case IDC_PerJobusertimitiMit:

{

// The Job Time Must Be Reset IF Setting A Job Time Limit

BOOL F;

Getdlgitemint (HWND, IDC_PERJOBUSERTIMELIMIMIT, & F, FALSE);

ENABLEWINDOW

Getdlgitem (hwnd, idc_preservejobtimewhenapplyinglimits),! F);

}

Break;