var
Device:Array[0..cchDeviceName-1] of Char;
Driver:Array[0..(MAX_PATH-1)] of Char;
Port:Array[0..32] of Char;
hDMode:THandle;
pDMode:PDevMode;
begin
Printer.GetPrinter(Device,Driver,Port,hDMode);
if hDMode<>0 then
begin
pDMode:=GlobalLock(hDMode);
if pDMode<>nil then
begin
pDMode^.dmPaperSize:=DMPAPER_A5;
pDMode^.dmFields:=pDMode^.dmFields or DM_PAPERSIZE;
GlobalUnLock(hDMode);
end;
end;
end;