有没有一种简单的方法在.NET中列出所有可见的网络打印机?目前,我正在显示PrintDialog以允许用户选择打印机。问题是,本地打印机也会被显示(连同XPS Document Writer等)。如果我可以自己枚举网络打印机,我就可以显示一个仅包含这些打印机的自定义对话框。
谢谢!!
有没有一种简单的方法在.NET中列出所有可见的网络打印机?目前,我正在显示PrintDialog以允许用户选择打印机。问题是,本地打印机也会被显示(连同XPS Document Writer等)。如果我可以自己枚举网络打印机,我就可以显示一个仅包含这些打印机的自定义对话框。
谢谢!!
LocalPrintServer.DefaultPrintQueue
获取默认打印机PrinterSettings.InstalledPrinters
\\
开头的打印机是网络打印机 - 使用 new PrintServer("\\UNCPATH").GetPrintQueue("QueueName")
获取队列\\
开头的打印机是本地打印机,使用LocalPrintServer.GetQueue("Name")
获取FullName
属性来查看哪个是默认打印机。注意:网络打印机可以是LocalPrintServer.DefaultPrintQueue
中的默认打印机,但不会出现在LocalPrintServer.GetPrintQueues()
中。
// get available printers
LocalPrintServer printServer = new LocalPrintServer();
PrintQueue defaultPrintQueue = printServer.DefaultPrintQueue;
// get all printers installed (from the users perspective)he t
var printerNames = PrinterSettings.InstalledPrinters;
var availablePrinters = printerNames.Cast<string>().Select(printerName =>
{
var match = Regex.Match(printerName, @"(?<machine>\\\\.*?)\\(?<queue>.*)");
PrintQueue queue;
if (match.Success)
{
queue = new PrintServer(match.Groups["machine"].Value).GetPrintQueue(match.Groups["queue"].Value);
}
else
{
queue = printServer.GetPrintQueue(printerName);
}
var capabilities = queue.GetPrintCapabilities();
return new AvailablePrinterInfo()
{
Name = printerName,
Default = queue.FullName == defaultPrintQueue.FullName,
Duplex = capabilities.DuplexingCapability.Contains(Duplexing.TwoSidedLongEdge),
Color = capabilities.OutputColorCapability.Contains(OutputColor.Color)
};
}).ToArray();
DefaultPrinter = AvailablePrinters.SingleOrDefault(x => x.Default);
使用新的System.Printing API
using (var printServer = new PrintServer(string.Format(@"\\{0}", PrinterServerName)))
{
foreach (var queue in printServer.GetPrintQueues())
{
if (!queue.IsShared)
{
continue;
}
Debug.WriteLine(queue.Name);
}
}
在这里找到了这段代码(链接)
private void btnGetPrinters_Click(object sender, EventArgs e)
{
// Use the ObjectQuery to get the list of configured printers
System.Management.ObjectQuery oquery =
new System.Management.ObjectQuery("SELECT * FROM Win32_Printer");
System.Management.ManagementObjectSearcher mosearcher =
new System.Management.ManagementObjectSearcher(oquery);
System.Management.ManagementObjectCollection moc = mosearcher.Get();
foreach (ManagementObject mo in moc)
{
System.Management.PropertyDataCollection pdc = mo.Properties;
foreach (System.Management.PropertyData pd in pdc)
{
if ((bool)mo["Network"])
{
cmbPrinters.Items.Add(mo[pd.Name]);
}
}
}
}
更新:
“此API函数可以枚举所有网络资源,包括服务器、工作站、打印机、共享、远程目录等。”
http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=741&lngWId=10
PrinterSettiings.InstalledPrinters
应该会给你想要的集合。