/// <summary>
/// 获取指定打印机的相关信息
/// </summary>
/// <param name="szPrinterName">打印机名称</param>
/// <param name="stPrinterInfo">打印机信息</param>
/// <returns>是否执行成功</returns>
public static bool GetPrinterInfo(string szPrinterName, ref NativeMethods.WinSpool.PRINTER_INFO stPrinterInfo)
{
IntPtr hPrinter = IntPtr.Zero;
NativeMethods.WinSpool.StructPrinterDefaults defaults = new NativeMethods.WinSpool.StructPrinterDefaults();
if (!NativeMethods.WinSpool.OpenPrinter(szPrinterName, out hPrinter, ref defaults))
{
return(false);
}
int cbNeeded = 0;
NativeMethods.WinSpool.GetPrinter(hPrinter, 2, IntPtr.Zero, 0, out cbNeeded);
if (cbNeeded <= 0)
{
NativeMethods.WinSpool.ClosePrinter(hPrinter);
return(false);
}
try
{
IntPtr pAddr = System.Runtime.InteropServices.Marshal.AllocHGlobal((int)cbNeeded);
if (NativeMethods.WinSpool.GetPrinter(hPrinter, 2, pAddr, cbNeeded, out cbNeeded))
{
stPrinterInfo = (NativeMethods.WinSpool.PRINTER_INFO)
System.Runtime.InteropServices.Marshal.PtrToStructure(pAddr, typeof(NativeMethods.WinSpool.PRINTER_INFO));
}
System.Runtime.InteropServices.Marshal.FreeHGlobal(pAddr);
}
catch (Exception ex)
{
LogManager.Instance.WriteLog("GlobalMethods.GetPrinterInfo", new string[] { "szPrinterName" }
, new object[] { szPrinterName }, ex);
}
NativeMethods.WinSpool.ClosePrinter(hPrinter);
return(true);
}
/// <summary>
/// ��ȡָ����ӡ���������Ϣ
/// </summary>
/// <param name="szPrinterName">��ӡ������</param>
/// <param name="stPrinterInfo">��ӡ����Ϣ</param>
/// <returns>�Ƿ�ִ�гɹ�</returns>
public static bool GetPrinterInfo(string szPrinterName, ref NativeMethods.WinSpool.PRINTER_INFO stPrinterInfo)
{
IntPtr hPrinter = IntPtr.Zero;
NativeMethods.WinSpool.StructPrinterDefaults defaults = new NativeMethods.WinSpool.StructPrinterDefaults();
if (!NativeMethods.WinSpool.OpenPrinter(szPrinterName, out hPrinter, ref defaults))
return false;
int cbNeeded = 0;
NativeMethods.WinSpool.GetPrinter(hPrinter, 2, IntPtr.Zero, 0, out cbNeeded);
if (cbNeeded <= 0)
{
NativeMethods.WinSpool.ClosePrinter(hPrinter);
return false;
}
try
{
IntPtr pAddr = System.Runtime.InteropServices.Marshal.AllocHGlobal((int)cbNeeded);
if (NativeMethods.WinSpool.GetPrinter(hPrinter, 2, pAddr, cbNeeded, out cbNeeded))
{
stPrinterInfo = (NativeMethods.WinSpool.PRINTER_INFO)
System.Runtime.InteropServices.Marshal.PtrToStructure(pAddr, typeof(NativeMethods.WinSpool.PRINTER_INFO));
}
System.Runtime.InteropServices.Marshal.FreeHGlobal(pAddr);
}
catch (Exception ex)
{
LogManager.Instance.WriteLog("GlobalMethods.GetPrinterInfo", new string[] { "szPrinterName" }
, new object[] { szPrinterName }, ex);
}
NativeMethods.WinSpool.ClosePrinter(hPrinter);
return true;
}
