public unsafe static bool IsRemovable(SetupAPI.SP_DEVINFO_DATA DevData)
{
int Status = 0;
int Problem = 0;
SetupAPI.CM_Get_DevNode_Status(ref Status, ref Problem, DevData.DevInst, 0);
return((Status & SetupAPI.DN_REMOVABLE) != 0);
}
public unsafe static string GetRegistryProperty(int PnPHandle, ref SetupAPI.SP_DEVINFO_DATA DeviceInfoData, SetupAPI.RegPropertyType Property)
{
int RequiredSize = 0;
SetupAPI.DATA_BUFFER Buffer = new SetupAPI.DATA_BUFFER();
int result = SetupAPI.SetupDiGetDeviceRegistryProperty(
PnPHandle,
ref DeviceInfoData,
Property,
null,
ref Buffer,
1024,
ref RequiredSize
);
return(Buffer.Buffer);
}
static unsafe void Main(string[] args)
{
int PnPHandle = SetupAPI.SetupDiGetClassDevs(
null,
null,
null,
SetupAPI.ClassDevsFlags.DIGCF_ALLCLASSES | SetupAPI.ClassDevsFlags.DIGCF_PRESENT
);
Console.WriteLine("PnPHandle={0}", PnPHandle);
int result = -1;
int DeviceIndex = 0;
while (result != 0)
{
SetupAPI.SP_DEVINFO_DATA DeviceInfoData = new SetupAPI.SP_DEVINFO_DATA();
DeviceInfoData.cbSize = Marshal.SizeOf(DeviceInfoData);
result = SetupAPI.SetupDiEnumDeviceInfo(PnPHandle, DeviceIndex, ref DeviceInfoData);
if (result == 1)
{
int RequiredSize = 0;
SetupAPI.DATA_BUFFER Buffer = new SetupAPI.DATA_BUFFER();
result = SetupAPI.SetupDiGetDeviceRegistryProperty(
PnPHandle,
ref DeviceInfoData,
SetupAPI.RegPropertyType.SPDRP_DEVICEDESC,
null,
ref Buffer,
1024,
ref RequiredSize
);
Console.WriteLine("{0}", Buffer.Buffer);
}
DeviceIndex++;
}
Console.ReadLine();
}
static unsafe void Main(string[] args)
{
Guid UsbGuid = new Guid("{36FC9E60-C465-11CF-8056-444553540000}");
int PnPHandle = SetupAPI.SetupDiGetClassDevs(
ref UsbGuid,
null,
null,
SetupAPI.ClassDevsFlags.DIGCF_PRESENT
);
int result = -1;
int DeviceIndex = 0;
while (result != 0)
{
SetupAPI.SP_DEVINFO_DATA DeviceInfoData = new SetupAPI.SP_DEVINFO_DATA();
DeviceInfoData.cbSize = Marshal.SizeOf(DeviceInfoData);
result = SetupAPI.SetupDiEnumDeviceInfo(PnPHandle, DeviceIndex, ref DeviceInfoData);
if (result == 1)
{
if (IsRemovable(DeviceInfoData))
{
Console.WriteLine("{0}", GetRegistryProperty(PnPHandle, ref DeviceInfoData, SetupAPI.RegPropertyType.SPDRP_DEVICEDESC));
if (SetupAPI.CM_Request_Device_Eject(DeviceInfoData.DevInst, null, null, 0, 0) == 0)
{
Console.WriteLine("Устройство успешно отключено.");
}
}
}
DeviceIndex++;
}
Marshal.FreeHGlobal((System.IntPtr)PnPHandle);
Console.ReadLine();
}