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{%MainUnit ../printersdlgs.pp}
// update from win32wsdialogs.pp
procedure Reposition(ADialogWnd: Handle);
var
Left, Top: Integer;
ABounds, DialogRect: TRect;
begin
// Btw, setting width and height of dialog does not reposition child controls :(
// So no way to set another height and width at least here
if (GetParent(ADialogWnd) = Widgetset.AppHandle) then
begin
if Screen.ActiveCustomForm <> nil then
ABounds := Screen.ActiveCustomForm.Monitor.BoundsRect
else
if Application.MainForm <> nil then
ABounds := Application.MainForm.Monitor.BoundsRect
else
ABounds := Screen.PrimaryMonitor.BoundsRect;
end
else
ABounds := Screen.MonitorFromWindow(GetParent(ADialogWnd)).BoundsRect;
GetWindowRect(ADialogWnd, DialogRect);
Left := (ABounds.Right - DialogRect.Right + DialogRect.Left) div 2;
Top := (ABounds.Bottom - DialogRect.Bottom + DialogRect.Top) div 2;
SetWindowPos(ADialogWnd, HWND_TOP, Left, Top, 0, 0, SWP_NOSIZE);
end;
function PrintHookProc(hdlg: HWND; uiMsg: UINT; {%H-}wParam: WPARAM; lParam: LPARAM): UINT_PTR; stdcall;
var
lpp: PtagPD;
begin
if uiMsg = WM_INITDIALOG then
begin
lpp := PtagPD(lParam);
if (lParam<>0) and (lpp^.lCustData<>0) then
SetWindowTextW(hdlg, pwidechar(lpp^.lCustData));
Reposition(hdlg);
end;
Result := 0;
end;
function PageSetupHookProc(hdlg: HWND; uiMsg: UINT; {%H-}wParam: WPARAM; lParam: LPARAM): PtrUInt; stdcall;
var
lpp : PtagPSD;
begin
if uiMsg = WM_INITDIALOG then
begin
lpp := PtagPSD(lParam);
if (lParam<>0) and (lpp^.lCustData<>0) then
SetWindowTextW(hdlg, pwidechar(lpp^.lCustData));
Reposition(hdlg);
end;
Result := 0;
end;
function GetOwnerHandle(ADialog : TCommonDialog): HWND;
begin
with ADialog do
if Owner is TWinControl then
Result := TWinControl(Owner).Handle
else
Result := WidgetSet.AppHandle;
end;
{ TPageSetupDialog }
function TPageSetupDialog.DoExecute: Boolean;
var
lpp : tagPSD;
PDev : TPrinterDevice;
DeviceMode : THandle;
DevNames : PDevNames;
DevModeW : PDeviceModeW;
StW : PWidechar;
BoolRes: BOOL;
begin
Result := False;
if not Assigned(Printer) then Exit;
if Printer.Printers.Count > 0 then
begin
FillChar(lpp, SizeOf(lpp), 0);
with lpp do
begin
lStructSize := SizeOf(lpp);
hInstance := System.HInstance;
lpfnPageSetupHook := @PageSetupHookProc;
if Title<>'' then
begin
lCustData := LPARAM(pWideChar(UTF8Decode(Title)));
end
else
lCustData := 0;
Flags := PSD_MARGINS or PSD_ENABLEPAGESETUPHOOK;
hWndOwner := GetOwnerHandle(Self);
// TODO: check that no need to div by 1000 values below
rtMargin.Left := MarginLeft;
rtMargin.Top := MarginTop;
rtMargin.Right := MarginRight;
rtMargin.Bottom := MarginBottom;
PDev := TPrinterDevice(Printer.Printers.Objects[Printer.PrinterIndex]);
// Pdev.DevMode has the required size, just copy to the global memory
DeviceMode := GLobalAlloc(GHND, PDev.DevModeSize);
try
DevModeW := PDeviceModeW(GlobalLock(DeviceMode));
try
CopyMemory(DevModeW, PDev.DevModeW, Pdev.DevModeSize);
finally
GlobalUnlock(DeviceMode);
end;
hDevMode := DeviceMode;
BoolRes := PageSetupDlgW(@Lpp);
if BoolRes then
begin
StW := '';
if Lpp.HdevNames <> 0 then
begin
DevNames := PDevNames(GlobalLock(lpp.hDevNames));
try
StW := PWidechar(DEVNames) + DevNames^.wDeviceOffset;
Printer.SetPrinter(UTF8Encode(widestring(StW)));
finally
GlobalUnlock(lpp.hDevNames);
GlobalFree(lpp.hDevNames);
end;
end;
Result:=True;
if (Flags and PSD_INHUNDREDTHSOFMILLIMETERS)>0 then
fUnits := pmMillimeters
else
fUnits := pmInches;
MarginLeft := rtMargin.Left;
MarginTop := rtMargin.Top;
MarginRight := rtMargin.Right;
MarginBottom := rtMargin.Bottom;
if lpp.hDevMode <> 0 then
begin
DevModeW := PDeviceModeW(GlobalLock(lpp.hDevMode));
try
//Set the properties for the selected printer
PDev := TPrinterDevice(Printer.Printers.Objects[Printer.PrinterIndex]);
CopyMemory(PDev.DevModeW, DevModeW, PDev.DevModeSize);
finally
GlobalUnlock(lpp.hDevMode);
end;
end;
end;
finally
GlobalFree(DeviceMode);
end;
end;
end;
end;
{ TPrinterSetupDialog }
function TPrinterSetupDialog.DoExecute: Boolean;
var
lpp : tagPD;
PDev : TPrinterDevice;
DeviceMode : THandle;
DevNames : PDevNames;
DevModeW : PDeviceModeW;
StW : PWidechar;
BoolRes: BOOL;
begin
Result:=False;
if not Assigned(Printer) then Exit;
if Printer.Printers.Count>0 then
begin
FillChar(lpp, SizeOf(lpp), 0);
with lpp do
begin
lStructSize := SizeOf(lpp);
hInstance := System.HInstance;
lpfnSetupHook := @PrintHookProc;
if Title<>'' then
lCustData := LPARAM(pWideChar(UTF8Decode(Title)))
else
lCustData := 0;
Flags := PD_PRINTSETUP or PD_RETURNDC or PD_ENABLESETUPHOOK;
hWndOwner := GetOwnerHandle(self);
PDev := TPrinterDevice(Printer.Printers.Objects[Printer.PrinterIndex]);
// Pdev.DevMode has the required size, just copy to the global memory
DeviceMode := GlobalAlloc(GHND, PDev.DevModeSize);
try
DevModeW := PDeviceModeW(GlobalLock(DeviceMode));
try
CopyMemory(DevModeW, Pdev.DevModeW, Pdev.DevModeSize);
finally
GlobalUnlock(DeviceMode);
end;
hDevMode := DeviceMode;
BoolRes := PrintDlgW(@lpp);
if BoolRes then
begin
StW := '';
//Change Selected printer
if lpp.hDevNames <> 0 then
begin
DevNames := PDevNames(GlobalLock(lpp.hDevNames));
try
StW := PWidechar(DevNames) + DevNames^.wDeviceOffset;
Printer.SetPrinter(UTF8Encode(widestring(StW)));
finally
GlobalUnlock(lpp.hDevNames);
GlobalFree(lpp.hDevNames);
end;
end;
Result := True;
if lpp.hDevMode <> 0 then
begin
DevModeW := PDeviceModeW(GlobalLock(lpp.hDevMode));
try
//Set the properties for the selected printer
PDev := TPrinterDevice(Printer.Printers.Objects[Printer.PrinterIndex]);
CopyMemory(PDev.DevModeW, DevModeW, PDev.DevModeSize);
TWinPrinter(Printer).Handle := hDC;
finally
GlobalUnlock(lpp.hDevMode);
end;
end;
end;
finally
GlobalFree(DeviceMode);
end;
end;
end;
end;
{ TPrintDialog }
function TPrintDialog.DoExecute: Boolean;
var
lpp : tagPD;
PDev : TPrinterDevice;
DeviceMode : THandle;
DevNames : PDevNames;
DevModeW : PDeviceModeW;
StW : PWidechar;
BoolRes: BOOL;
Index: Integer;
begin
Result := False;
if not Assigned(Printer) then Exit;
if Printer.Printers.Count > 0 then
begin
FillChar(lpp, SizeOf(lpp), 0);
with lpp do
begin
lStructSize := SizeOf(lpp);
hInstance := System.HInstance;
lpfnPrintHook := @PrintHookProc;
lpfnSetupHook := @PrintHookProc;
if Title<>'' then
begin
lCustData := LPARAM(pWideChar(UTF8Decode(Title)));
end
else
lCustData := 0;
Flags := PD_ENABLEPRINTHOOK or PD_ENABLESETUPHOOK;
if not Printer.RawMode then
Flags := Flags or PD_RETURNDC;
if Collate then
Flags := Flags or PD_COLLATE;
case PrintRange of
prPageNums: Flags := Flags or PD_PAGENUMS;
prSelection: Flags := Flags or PD_SELECTION;
end;
if PrintToFile then Flags := Flags or PD_PRINTTOFILE;
if not (poPrintToFile in Options) then Flags := Flags or PD_HIDEPRINTTOFILE;
if not (poPageNums in Options) then Flags := Flags or PD_NOPAGENUMS;
if not (poSelection in Options) then Flags := Flags or PD_NOSELECTION;
if (poPrintToFile in Options ) and (poDisablePrintToFile in Options) then Flags := Flags or PD_DISABLEPRINTTOFILE;
if (poHelp in Options) then Flags := Flags or PD_SHOWHELP;
if not (poWarning in Options) then Flags := Flags or PD_NOWARNING;
hWndOwner := GetOwnerHandle(self);
PDev := TPrinterDevice(Printer.Printers.Objects[Printer.PrinterIndex]);
// Pdev.DevMode has the required size, just copy to the global memory
DeviceMode := GlobalAlloc(GHND, PDEV.DevModeSize);
try
DevModeW := PDeviceModeW(GlobalLock(DeviceMode));
try
CopyMemory(DevModeW, PDev.DevModeW, PDev.DevModeSize);
finally
GlobalUnlock(DeviceMode);
end;
hDevMode := DeviceMode;
nCopies := Word(Copies);
nFromPage := Word(FromPage);
nToPage := Word(ToPage);
nMinPage := Word(MinPage);
nMaxPage := Word(MaxPage);
DevModeW^.dmCopies := nCopies;
BoolRes := PrintDlgW(@lpp);
if BoolRes then
begin
StW := '';
//Change Selected printer
if lpp.hDevNames <> 0 then
begin
DevNames := PDevNames(GlobalLock(lpp.hDevNames));
try
StW := PWidechar(DevNames) + DevNames^.wDeviceOffset;
Printer.SetPrinter(UTF8Encode(widestring(stW)));
finally
GlobalUnlock(lpp.hDevNames);
GlobalFree(lpp.hDevNames);
end;
end;
Result:=True;
// printer might have changed, check if new printer
// support extended device modes
PDev:=TPrinterDevice(Printer.Printers.Objects[Printer.PrinterIndex]);
if (lpp.hDevMode<>0) and (Pdev.DevModeW<>nil) then
begin
DevModeW := PDeviceModeW(GlobalLock(lpp.hDevMode));
try
CopyMemory(PDev.DevModeW,DevModeW,PDev.DevModeSize);
Index := Printer.PaperSize.SupportedPapers.IndexOfObject(TObject(ptrint(DevModeW^.dmPaperSize)));
if Index <> -1 then
begin
PDev.DevModeW^.dmPaperSize := DevModeW^.dmPaperSize;
end
else
begin
PDev.DevModeW^.dmPaperSize := PDev.DefaultPaper;
end;
if nCopies=1 then
begin
Copies := DevModeW^.dmCopies;
end
else
Copies := nCopies;
Printer.Copies := Copies;
if not Printer.RawMode then
TWinPrinter(Printer).Handle := hDC;
finally
GlobalUnlock(lpp.hDevMode);
end;
end;
PrintRange := prAllPages;
PrintToFile := false;
Collate := false;
if (Flags and PD_SELECTION)>0 then PrintRange := prSelection;
if (Flags and PD_PAGENUMS)>0 then PrintRange := prPageNums;
if (Flags and PD_PRINTTOFILE)>0 then PrintToFile := true;
if (Flags and PD_COLLATE)>0 then Collate := true;
FromPage := Integer(nFromPage);
ToPage := Integer(nToPage);
MinPage := Integer(nMinPage);
MaxPage := Integer(nMaxPage);
end;
finally
GlobalFree(DeviceMode);
end;
end;
end;
end;
|
