private int ConfigureSmart51(int nres)
{
SmartComm2.SMART51_DEVMODE smdm;
IntPtr smdm_ptr;
Int32 dmlen = Marshal.SizeOf(typeof(SmartComm2.SMART51_DEVMODE));
IntPtr dmlen_ptr = Marshal.AllocHGlobal(dmlen);
// allocate printer
smdm_ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(SmartComm2.SMART51_DEVMODE)));
Marshal.WriteInt32(dmlen_ptr, dmlen);
// get current printer settings...
if (nres == SmartComm2.SM_SUCCESS)
{
nres = SmartComm2.SmartComm_GetPrinterSettings2((long)hsmartprinterid, (int)smdm_ptr, (int)dmlen_ptr);
}
// set to both printing...
smdm = (SmartComm2.SMART51_DEVMODE)Marshal.PtrToStructure(smdm_ptr, typeof(SmartComm2.SMART51_DEVMODE));
smdm.devmode.dmOrientation = DMORIENT_LANDSCAPE; // set landscape printing...
smdm.oemdev.dwPrtSide = SmartComm2.SMART_PRINTSIDE_BOTH;
Marshal.StructureToPtr(smdm, smdm_ptr, true);
// change printer settings...
if (nres == SmartComm2.SM_SUCCESS)
{
nres = SmartComm2.SmartComm_SetPrinterSettings2((long)hsmartprinterid, (int)smdm_ptr, dmlen);
}
// free
Marshal.FreeHGlobal(smdm_ptr);
Marshal.FreeHGlobal(dmlen_ptr);
return(nres);
}