var
Device: array[0..255] of char;
Driver: array[0..255] of char;
Port: array[0..255] of char;
hDMode: THandle;
PDMode: PDEVMODE;
begin
Printer.PrinterIndex := Printer.PrinterIndex;
Printer.GetPrinter(Device, Driver, Port, hDMode);
if hDMode <> 0 then
begin
pDMode := GlobalLock(hDMode);
if pDMode <> nil then
begin
if (x = 0) or (y = 0) then
begin
{Set to legal}
pDMode^.dmFields := pDMode^.dmFields or dm_PaperSize;
{pDMode^.dmPaperSize := DMPAPER_LEGAL;
changed by wulianmin}
pDMode^.dmPaperSize := DMPAPER_FANFOLD_US;
end
else
begin
{Set to custom size}
pDMode^.dmFields := pDMode^.dmFields or
DM_PAPERSIZE or
DM_PAPERWIDTH or
DM_PAPERLENGTH;
pDMode^.dmPaperSize := DMPAPER_USER;
pDMode^.dmPaperWidth := x {SomeValueInTenthsOfAMillimeter};
pDMode^.dmPaperLength := y {SomeValueInTenthsOfAMillimeter};
end;
{Set the bin to use}
pDMode^.dmFields := pDMode^.dmFields or DMBIN_MANUAL;
pDMode^.dmDefaultSource := DMBIN_MANUAL;
GlobalUnlock(hDMode);
end;
end;
Printer.PrinterIndex := Printer.PrinterIndex;
end;