center the forms window in oracle forms 6i,10g 11g | Oracle apps

Call procedure in when new form instance CENTER_FORM('WINDOW1',0); PROCEDURE CENTER_FORM(MyWindowName IN varchar2,UpperMargin IN number) IS x number(6); y number(6); BEGIN SET_WINDOW_PROPERTY(FORMS_MDI_WINDOW,TITLE,'India'); Set_window_property(forms_mdi_window,window_state,maximize); x:=((get_window_property(forms_mdi_window,width)-get_window_property(MyWindowName ,width))/2); y:=((get_window_property(forms_mdi_window,height)-get_window_property(MyWindowName ,height))/2+UpperMargin); set_window_property(MyWindowName , position,x,y); END;