Setting printer paper trays to a network printer for a print job

Adjusted points to 200

what do u mean by tray -  paper size?

Here is the working sample (console app)
1) run it a.exe - it'll print all trays & ids
2) run a.exe tray_id - it'll print test page

#include <windows.h>
#include <iostream.h>
#include <stdio.h>

// Usage: a.exe [tray_#]

PRINTDLG pdSetup;

void GetDefPrinter() {
  memset(&pdSetup,0,sizeof(PRINTDLG));
  pdSetup.lStructSize=sizeof(PRINTDLG);
  pdSetup.Flags=PD_RETURNDEFAULT;
  PrintDlg(&pdSetup);
}

void main(int argc,char* argv[])
{
   // Fill PRINTDLG struct
   GetDefPrinter();

   // Obtain printer info
   LPDEVMODE dm=LPDEVMODE(GlobalLock(pdSetup.hDevMode));
   LPDEVNAMES dn=LPDEVNAMES(GlobalLock(pdSetup.hDevNames));

   if(argc<2) { // Print trays info
      // Check trays
      DWORD nTrays=DeviceCapabilities(LPTSTR(dn)+dn->wDeviceOffset,
         LPTSTR(dn)+dn->wOutputOffset,DC_BINNAMES,0,0);
      if(nTrays==DWORD(-1) || nTrays==0) {
         cout<<"Cannot get trays count!"<<endl;
         exit(1);
      }
   
      typedef char trayNameT[24];
      trayNameT* trayName=new char[nTrays][24];
      DeviceCapabilities(LPTSTR(dn)+dn->wDeviceOffset,
         LPTSTR(dn)+dn->wOutputOffset,DC_BINNAMES,LPTSTR(trayName),0);
      LPWORD trayID=new WORD[nTrays];
      DeviceCapabilities(LPTSTR(dn)+dn->wDeviceOffset,
         LPTSTR(dn)+dn->wOutputOffset,DC_BINS,LPTSTR(trayID),0);

      for(DWORD i=0;i<nTrays;i++) {
         cout<<trayID[i]<<' '<<trayName[i]<<endl;
      }
   }
   else {
      // Get tray ID
      DWORD id=strtoul(argv[1],0,0);  
      dm->dmDefaultSource=id;

      HDC hdcPrinter=CreateDC(LPTSTR(dn)+dn->wDriverOffset,
         LPTSTR(dn)+dn->wDeviceOffset,0,dm);

      // Test printing
      TEXTMETRIC tmPrinter; // Printer metricies
      int cxPage, cyPage; // Width and Height of page
      char szText[120]; // Buffer for output
      cxPage=GetDeviceCaps(hdcPrinter, HORZRES);
      SelectObject(hdcPrinter, CreatePen(PS_SOLID, 1, 0));
      DOCINFO di={sizeof(DOCINFO),"Test",NULL};
      int jobId=StartDoc(hdcPrinter,&di);
      StartPage(hdcPrinter);
      Rectangle(hdcPrinter, 0, 0, cxPage, 500);
      SelectObject(hdcPrinter, CreatePen(PS_SOLID, 10, 0));
      Rectangle(hdcPrinter, 2000, 2000, 2600, 2600);
      SelectObject(hdcPrinter, CreatePen(PS_SOLID, 50, 0));
      Rectangle(hdcPrinter, 200, 1000, 300, 1300);
      wsprintf(szText, "Printer Test");
      TextOut(hdcPrinter, 50, (20 * 5), szText, strlen(szText));
      if (EndPage(hdcPrinter) > 0) {
         EndDoc(hdcPrinter);
      }
      DeleteObject(SelectObject(hdcPrinter, GetStockObject(BLACK_PEN)));
      DeleteDC(hdcPrinter);
   }
   GlobalUnlock(pdSetup.hDevNames);
   GlobalUnlock(pdSetup.hDevMode);
}

Crash occurs when doing a createDC. Please let me knwo on any further advances on this issue. I dire need. If you are close to the fix please let me know.

This code works fine.
At least, I've told you what to do.
Thank you for polite answer.

Hi,
     None of the windows applications work(print to a different tray) if the printer is a network printer. Looks like there is a problem in the setting. ThanX a lot for the sample code.

I've checked this code at network printer before post it here.