Problems specifying paper size with PDF-XChange Driver API

[sjrogers]

I am trying to use the PDF-XChange Drivers API SDK to create a .PDF file of a specified size. It seems like I am having some success with the paper size that the .PDF thinks it is, but not internally because the Device Context seems to still think it is 8.5 x 11 and I can only draw in that area. Here is my test code I have been using:


CoInitialize(NULL);
WCHAR str[MAX_PATH];
PXC::IPXCControlExPtr pFactory;
PXC::IPXCPrinterPtr prn;

pFactory = PXC::IPXCControlExPtr(__uuidof(PXC::CPXCControlEx));
if (pFactory == NULL)
{
wsprintfW(str, L"Thread %d: cannot create factory\n", GetCurrentThreadId());
OutputDebugString(str);
}

try
{
prn = pFactory->Printer[L"", L"PDF-XChange Sample", L"<KEY>", L"<DEVCODE>"];
}
catch (_com_error& e)
{
// dump_com_error(e);
}

WCHAR pname[MAX_PATH];
wsprintfW(pname, L"m:\\temp\\test.pdf");

DOCINFO di = {0};
di.cbSize = sizeof(DOCINFO);
di.lpszDocName = pname;

prn->ResetDefaults();

prn->Option[L"General.Specification"] = -1;

prn->Option[L"Save.SaveType"] = L"Save";
prn->Option[L"Save.ShowSaveDialog"] = L"No";
prn->Option[L"Save.File"] = pname;
prn->Option[L"Save.WhenExists"] = L"Overwrite";
// prn->Option[L"Save.RunApp"] = L"No";

prn->Option[L"Paper.SheetSizeIndex"] = -2;
prn->Option[L"Paper.SheetWidth"] = 4000;
prn->Option[L"Paper.SheetHeight"] = 3000;

prn->Option[L"Paper.Center"] = L"No";
prn->Option[L"Paper.Fit"] = L"No";

CDC cdc;
if (!cdc.CreateDCW(L"PDF-XChange 5.0", (LPCWSTR)prn->Name, L"PDF-XChange5", NULL))
{
// unable to create dc
}

POINT point;
long stat1=cdc.Escape(GETPRINTINGOFFSET, 0, NULL, &point);
cdc.Escape(GETPHYSPAGESIZE,0,NULL,&point);

int pageX=point.x;
int pageY=point.y;

int dpiX=cdc.GetDeviceCaps(LOGPIXELSX);
int dpiY=cdc.GetDeviceCaps(LOGPIXELSY);

double pwInches = (double)pageX / (double)dpiX;
double phInches = (double)pageY / (double)dpiY;

double pw=pageX;
double ph=pageY;

CPen red(0,0,RGB(255,0,0));
CPen blue(0,10,RGB(0,0,255));
CPen *oldPen = cdc.SelectObject(&red);

if (cdc.StartDoc(&di) > 0)
{
if (cdc.StartPage() > 0)
{
int size=dpiX;
double maxx=pw;
double maxy=ph;

// Draw Grid
for (int x=0; x<maxx-dpiX; x+=dpiX)
{
for (int y=0; y<maxy - dpiY; y+=dpiY)
{
cdc.MoveTo(x,y);
cdc.LineTo(x+size,y);
cdc.LineTo(x+size,y+size);
cdc.LineTo(x,y+size);
cdc.LineTo(x,y);

double cenx = x+dpiX/2;
double ceny = y+dpiY/2;

CString temp;
temp.Format(_T("x=%d,y=%d"),x/dpiX,y/dpiY);

cdc.TextOutW(cenx,ceny,temp.GetBuffer(0),temp.GetLength());
}
}

// Draw Page Bounding box
cdc.SelectObject(&blue);
cdc.MoveTo(0,0);
cdc.LineTo(maxx,0);
cdc.LineTo(maxx,maxy);
cdc.LineTo(0,maxy);
cdc.LineTo(0,0);
cdc.SelectObject(oldPen);

cdc.EndPage();
}
else
{
// Unable to start page
}

cdc.EndDoc();
}
else
{
// Unable to start Doc
}


// cleanup
cdc.DeleteDC();

if (prn != NULL)
{
prn.Release();
}
if (pFactory != NULL)
{
pFactory.Release();
}

CoUninitialize();


This code produces the attached file test.pdf. The page is the right size, but the DC that I am drawing to still thinks it is 8.5 x 11. I would expect the grid that is drawn to cover the entire page. I have tried ignoring the DC sizes that are returned, but I still can't draw beyond the 8.5 x 11 block.

Obviously, I am missing something key here, but I have not yet been able to figure out what it is.

Any help will be greatly appreciated.

[Ivan - Tracker Software]

You have two options:

1. Use ResetDC to specify new paper size via DEVMODE, as you would do for any other printer

2. Specify paper size via an 'Option[]':

prn->Option[L"DevMode.PapSize"] = DMPAPER_USER;
prn->Option[L"DevMode.CWidth"] = 4000;
prn->Option[L"DevMode.CHeight"] = 3000;
prn->ApplyOptions(0);

please note prn->ApplyOptions.

HTH

[sjrogers]

Ivan,

Thanks for the information. I think the: prn->ApplyOptions(0); is the line I was missing.

Also, DevMode.PapSize, DevMode.CWidth, and DevMode.CHeight are not in the documentation for the SDK (PDFXDRV5SDKMAN.pdf). I don't know if these are the same as Paper.SheetSizeIndex, Paper.SheetWidth, and Paper.SheetHeight or not.

The documentation also says that SheetWidth and SheetHeight are in 1/10ths of mm and have a valid range of 13-5080. This may be incorrect because that is only 20"x20" and I have used much larger sizes.

Another problem I had was that I set:

prn->Option[L"DevMode.CWidth"] = paperWidth * 254.0;
prn->Option[L"DevMode.CHeight"] = paperHeight * 254.0;

This, of course, did not work as it is expecting the value to be an integer

[Ivan - Tracker Software]

Will check the documentation.

Paper size should be specified in tenth of mm, and, you're right, it should be an integer. PDF supports paper size in range from 3pt to 200" (3/72" - 200"). So, the range should be 11 to 50800.