|
private SetupDiGetDeviceProperty ( |
||
| deviceInfo | ||
| deviceInfoData | SP_DEVINFO_DATA | |
| propkey | DEVPROPKEY | |
| propertyDataType | ulong | |
| propertyBuffer | byte | |
| propertyBufferSize | int | |
| requiredSize | int | |
| flags | uint | |
| Результат | bool | |
private static string GetBusReportedDeviceDescription(IntPtr deviceInfoSet, ref NativeMethods.SP_DEVINFO_DATA devinfoData)
{
var descriptionBuffer = new byte[1024];
if (Environment.OSVersion.Version.Major > 5)
{
ulong propertyType = 0;
var requiredSize = 0;
var _continue = NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet,
ref devinfoData,
ref NativeMethods.DEVPKEY_Device_BusReportedDeviceDesc,
ref propertyType,
descriptionBuffer,
descriptionBuffer.Length,
ref requiredSize,
0);
if (_continue)
{
return(descriptionBuffer.ToUTF16String());
}
}
return(null);
}
private static string GetBusReportedDeviceDescription(IntPtr deviceInfoSet, ref NativeMethods.SP_DEVINFO_DATA devinfoData)
{
unsafe
{
const int charCount = 1024;
var descriptionBuffer = stackalloc char[charCount];
if (Environment.OSVersion.Version.Major > 5)
{
uint propertyType = 0;
var requiredSize = 0;
if (NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet,
ref devinfoData,
ref NativeMethods.DEVPKEY_Device_BusReportedDeviceDesc,
ref propertyType,
descriptionBuffer,
propertyBufferSize: charCount *sizeof(char),
ref requiredSize,
0))
{
return(new string(descriptionBuffer));
}
}
return(null);
}
}
private static string GetDeviceParent(IntPtr deviceInfoSet, ref NativeMethods.SP_DEVINFO_DATA devinfoData)
{
string result = string.Empty;
var requiredSize = 0;
ulong propertyType = 0;
NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet, ref devinfoData,
ref NativeMethods.DEVPKEY_Device_Parent, ref propertyType,
null, 0,
ref requiredSize, 0);
if (requiredSize > 0)
{
var descriptionBuffer = new byte[requiredSize];
NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet, ref devinfoData,
ref NativeMethods.DEVPKEY_Device_Parent, ref propertyType,
descriptionBuffer, descriptionBuffer.Length,
ref requiredSize, 0);
string tmp = System.Text.Encoding.Unicode.GetString(descriptionBuffer);
if (tmp.EndsWith("\0"))
{
tmp = tmp.Remove(tmp.Length - 1);
}
result = tmp;
}
return(result);
}
private static string GetBusReportedDeviceDescription(IntPtr deviceInfoSet, ref NativeMethods.SP_DEVINFO_DATA devinfoData)
{
byte[] array = new byte[1024];
if (Environment.OSVersion.Version.Major > 5)
{
ulong propertyDataType = 0uL;
int requiredSize = 0;
if (NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet, ref devinfoData, ref NativeMethods.DEVPKEY_Device_BusReportedDeviceDesc, ref propertyDataType, array, array.Length, ref requiredSize, 0u))
{
return(array.ToUTF16String());
}
}
return(null);
}
