public MainForm()
{
InitializeComponent();
ManagementObjectSearcher objSearcher = new ManagementObjectSearcher("Select * from Win32_PnPSignedDriver");
ManagementObjectCollection objCollection = objSearcher.Get();
foreach (ManagementObject obj in objCollection)
{
var FriendlyName = (string)obj["FriendlyName"] ?? (string)obj["DeviceName"] ?? "Unknown";
var DeviceName = (string)obj["DeviceName"] ?? "Unknown";
var Manufacturer = (string)obj["Manufacturer"] ?? "Unknown";
var ClassGuid = (string)obj["ClassGuid"] ?? "Unknown";
var DeviceClass = (string)obj["DeviceClass"] ?? "Unknown";
if (!treeView1.Nodes.ContainsKey(DeviceClass))
{
TreeNode classNode = new TreeNode(DeviceClass);
classNode.Name = DeviceClass;
treeView1.Nodes.Add(classNode);
}
var deviceNode = new DeviceNode();
deviceNode.Text = FriendlyName;
deviceNode.Name = ClassGuid;
deviceNode.FriendlyName = FriendlyName;
deviceNode.Manufacturer = Manufacturer;
treeView1.Nodes[DeviceClass].Nodes.Add(deviceNode);
}
}
private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
if (e.Node.Level == 0)
{
return;
}
DeviceNode node = (DeviceNode)e.Node;
textBox1.Text = node.FriendlyName;
textBox2.Text = node.Name;
textBox3.Text = node.Manufacturer;
}