procedureTForm1.FormCreate(Sender:TObject); var devmode:tDevicemode; begin ifscreen.width<>orignwidththen begin ifEnumDisplaySettings(nil,0,devmode)then begin devmode.dmfields:=dm_pelswidthORdm_pelsheight; devmode.dmpelswidth:=orignwidth;{宽度} devmode.dmpelsheight:=orignheight;{高度} ChangeDisplaySettings(devmode,0);{更改设置} end; end; end;