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To create a page in a module other than winspool, prefix the name with the module name and a period.
You will need to import System.Runtime.InteropServices
Tips & Tricks:
Please add some!
Sample Code:
private const int ERROR_FILE_NOT_FOUND = 2;
private const int ERROR_INSUFFICIENT_BUFFER = 122;
public static PRINTER_INFO_2[] enumPrinters(PrinterEnumFlags Flags)
{
uint cbNeeded = 0;
uint cReturned = 0;
if (EnumPrinters(Flags, null, 2, IntPtr.Zero, 0, ref cbNeeded, ref cReturned))
{
return null;
}
int lastWin32Error = Marshal.GetLastWin32Error();
if (lastWin32Error == ERROR_INSUFFICIENT_BUFFER)
{
IntPtr pAddr = Marshal.AllocHGlobal((int)cbNeeded);
if (EnumPrinters(Flags, null, 2, pAddr, cbNeeded, ref cbNeeded, ref cReturned))
{
PRINTER_INFO_2[] printerInfo2 = new PRINTER_INFO_2[cReturned];
int offset = pAddr.ToInt32();
Type type = typeof(PRINTER_INFO_2);
int increment = Marshal.SizeOf(type);
for (int i = 0; i < cReturned; i++)
{
printerInfo2[i] = (PRINTER_INFO_2)Marshal.PtrToStructure(new IntPtr(offset), type);
offset += increment;
}
Marshal.FreeHGlobal(pAddr);
return printerInfo2;
}
lastWin32Error = Marshal.GetLastWin32Error();
}
throw new Win32Exception(lastWin32Error);
}
Alternative Managed API:
PrinterSettings.InstalledPrinters, but this only gives the name of the printers.
Used by the EnumPrinters function in Winspool.
9/18/2014 9:25:10 PM - -65.89.124.19
Click to read this page
4/6/2008 7:23:14 AM - anonymous
Click to read this page
4/6/2008 7:23:14 AM - anonymous
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Used by the EnumPrinters function in Winspool.
9/18/2014 9:25:10 PM - -65.89.124.19
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
Used by the EnumPrinters call in Winspool.
9/13/2013 2:04:16 AM - -193.109.238.134
Used by the EnumPrinters function in Winspool.
9/18/2014 9:25:10 PM - -65.89.124.19
Used by the EnumPrinters function in Winspool.
9/18/2014 9:25:10 PM - -65.89.124.19
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