Type a page name and press Enter. You'll jump to the page if it exists, or you can create it if it doesn't.
To create a page in a module other than winspool, prefix the name with the module name and a period.
{
/*
'To determine the required buffer size,
'call EnumPrinterDrivers with cbBuffer set
'to zero. The call will fails specifying
'ERROR_INSUFFICIENT_BUFFER and filling in
'cbRequired with the required size, in bytes,
'of the buffer required to hold the array
'of structures and data.
*/
uint cbNeeded = 0;
uint cReturned = 0;
if (EnumPrinterDrivers(null, null, 2, IntPtr.Zero, 0, ref cbNeeded, ref cReturned))
{
//succeeds, but shouldn't, because buffer is zero (too small)!
throw new Exception("EnumPrinters should fail!");
}
int lastWin32Error = Marshal.GetLastWin32Error();
//ERROR_INSUFFICIENT_BUFFER = 122 expected, if not -> Exception
if (lastWin32Error != 122)
{
throw new Win32Exception(lastWin32Error);
}
IntPtr pAddr = Marshal.AllocHGlobal((int)cbNeeded);
if (EnumPrinterDrivers(null, null, 2, pAddr, cbNeeded, ref cbNeeded, ref cReturned))
{
DRIVER_INFO_2[] printerInfo2 = new DRIVER_INFO_2[cReturned];
int offset = pAddr.ToInt32();
Type type = typeof(DRIVER_INFO_2);
int increment = Marshal.SizeOf(type);
for (int i = 0; i < cReturned; i++)
{
printerInfo2[i] = (DRIVER_INFO_2)Marshal.PtrToStructure(new IntPtr(offset), type);
offset += increment;
}
Marshal.FreeHGlobal(pAddr);
return printerInfo2;
}
throw new Win32Exception(Marshal.GetLastWin32Error());
}
The EnumPrinterDrivers function enumerates the printer drivers installed on a specified printer server
3/2/2016 5:04:20 PM - -87.175.208.64
Please edit this page!
Do you have...
helpful tips or sample code to share for using this API in managed code?
corrections to the existing content?
variations of the signature you want to share?
additional languages you want to include?
Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).