C# PrintDocument 和打印机状态

发布于 2024-12-03 03:36:58 字数 587 浏览 1 评论 0原文

我正在尝试使用以下代码获取 PointOfSale 打印机的打印机状态：

Hashtable properties = new Hashtable();
ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win2_Printer");

foreach (ManagementObject obj in searcher.Get()) {
  if (obj["name"].ToString() == printerName) {
    foreach (PropertyData data in obj.Properties) {
      if(data.Name.ToLower() = "printerstatus") {
        int printerStatus = Convert.ToInt32(data.Value);
      }
    }
  }
}

问题是，即使拔掉插头或纸张已用完，状态也为 3（空闲）或 4（正在打印）。

我读过很多关于同样问题的帖子，但没有找到答案。这是正确的吗？我还能如何检查状态？任何帮助表示赞赏。

原文

I am trying to get the printer status of a PointOfSale printer using the following code:

Hashtable properties = new Hashtable();
ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win2_Printer");

foreach (ManagementObject obj in searcher.Get()) {
  if (obj["name"].ToString() == printerName) {
    foreach (PropertyData data in obj.Properties) {
      if(data.Name.ToLower() = "printerstatus") {
        int printerStatus = Convert.ToInt32(data.Value);
      }
    }
  }
}

Problem is, the status is either 3 (idle) or 4(printing), even when unplugged or the paper is out.

I have read a lot of posts with this same issue, but have not found an answer. Is this correct? How else would I check the status? Any help is appreciated.

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