Print a PDF file with MFC - c++

Question

In my app (MFC, C++) I have a button that creates a PDF file in a path.
Now I want to create another button that will print the pdf starting from the path and choosing some option like orientation and number of copies... but I'm not able to do that...
I saw that CPrintDialog shows the default dialog of the printer but I'm not able to attach the PDF file using the path.
I saw also the
ShellExecute(NULL, L"print", L"C:\\Documents\\1.pdf", NULL, NULL, SW_SHOWNORMAL);
that works but in this way I cannot choose any parameter...
How I can use the CPrintDialog to print an existing PDF that is in a path?

Answer 1

You have to use ShellExecuteEx and verb printto to get more control over printing:
SHELLEXECUTEINFO ShellInfo;
ZeroMemory(&ShellInfo, sizeof(SHELLEXECUTEINFO));
ShellInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShellInfo.lpVerb = L"printto";
ShellInfo.lpFile = L"C:\\Documents\\1.pdf";
ShellInfo.lpParameters = szPrinter;
ShellInfo.nShow = SW_SHOWNORMAL;
ShellInfo.fMask = SEE_MASK_FLAG_DDEWAIT | SEE_MASK_NOCLOSEPROCESS;
if(::ShellExecuteEx(&ShellInfo))
{
if((int)ShellInfo.hInstApp > 32)
{
if(ShellInfo.hProcess != NULL)
{
DWORD dwExitCode = STILL_ACTIVE;
while(dwExitCode == STILL_ACTIVE)
{
if(!::GetExitCodeProcess(ShellInfo.hProcess, &dwExitCode))
{
dwExitCode = 0;
}
}
::CloseHandle(ShellInfo.hProcess);
}
}
}
To get the printer name:
CPrintDialog dlg(TRUE);
if (dlg.DoModal() == IDOK)
{
CString sPrinterName = dlg.GetDeviceName();
}

Answer 2

I have solved with a workaround. Instead of use the ShellExecute, I draw all the thing that I want to print using a CDC object attached to the hDC of a CPrintDialog class. Rember to manage the size of the draw depending on printer DPI like here.
A snippet only to have an idea:
CPrintDialog printDialog(FALSE);
printDialog.GetDefaults();
printDialog.m_pd.Flags &= ~PD_RETURNDEFAULT;
DEVMODE* pDevMode = printDialog.GetDevMode();
pDevMode->dmFields = DM_ORIENTATION | DM_PAPERSIZE | DM_PRINTQUALITY ;
pDevMode->dmOrientation = DMORIENT_LANDSCAPE;
pDevMode->dmPaperSize = DMPAPER_A4;
::GlobalUnlock(printDialog.m_pd.hDevMode);
if (printDialog.DoModal() == IDOK)
{
CDC* pDC = new CDC;
pDC->Attach(printDialog.m_pd.hDC);
pDCPDF->StartDoc(_T(""));
pDCPDF->StartPage();
// ...
//draw what you want
// ...
pDCPDF->EndPage();
pDCPDF->EndDoc(); //this starts the printer
pDCPDF->DeleteDC();
}
Hope to reach soon the reputation of 15 to vote the answer of other questions.
Thanks to Andrew Komiagin answers.