public static bool TryGetUnsignedIntegerValue(this IPortableDeviceValues values, PropertyKey key, out uint value)
{
if (values.HasKeyValue(key))
{
values.GetUnsignedIntegerValue(ref key, out value);
return(true);
}
value = 0;
return(false);
}
public CPasswordSiloInformation(IPortableDeviceValues results)
{
results.GetBufferValue(ENHANCED_STORAGE_PROPERTY_PASSWORD_SILO_INFO, out Vanara.InteropServices.SafeCoTaskMemHandle pbBuffer, out int cbBuffer);
SiloInfo = pbBuffer.DangerousGetHandle().ToStructure <ENHANCED_STORAGE_PASSWORD_SILO_INFORMATION>(cbBuffer);
dwAuthnState = (ENHANCED_STORAGE_AUTHN_STATE)results.GetUnsignedIntegerValue(ENHANCED_STORAGE_PROPERTY_AUTHENTICATION_STATE);
UserHint = results.GetStringValue(ENHANCED_STORAGE_PROPERTY_USER_HINT);
UserName = results.GetStringValue(ENHANCED_STORAGE_PROPERTY_USER_NAME);
AdminHint = results.GetStringValue(ENHANCED_STORAGE_PROPERTY_ADMIN_HINT);
SiloName = results.GetStringValue(ENHANCED_STORAGE_PROPERTY_SILO_NAME);
}
/// <summary>
/// tag_inner_PROPVARIANT型からuintの値を取得する
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
private static uint getUintValue(tag_inner_PROPVARIANT value)
{
uint ret = 1;
IPortableDeviceValues pdValues = (IPortableDeviceValues) new PortableDeviceTypesLib.PortableDeviceValues();
pdValues.SetValue(ref WpdProperty.WPD_OBJECT_ID, ref value);
pdValues.GetUnsignedIntegerValue(ref WpdProperty.WPD_OBJECT_ID, out ret);
Marshal.ReleaseComObject(pdValues);
return(ret);
}
/// <summary>
/// 获取设备类型
/// </summary>
/// <param name="DeviceValues"></param>
/// <returns></returns>
private static MTPDeviceType GetDeviceType(IPortableDeviceValues DeviceValues)
{
_tagpropertykey deviceTypeKey = new _tagpropertykey()
{
fmtid = new Guid("26d4979a-e643-4626-9e2b-736dc0c92fdc"), pid = 15
};
uint propertyValue;
DeviceValues.GetUnsignedIntegerValue(ref deviceTypeKey, out propertyValue);
MTPDeviceType deviceType = (MTPDeviceType)propertyValue;
return(deviceType);
}
/// <summary>
/// プロパティ値から、符号なし 32 ビット整数値を読み取ります。
/// </summary>
/// <param name="key">識別子。</param>
/// <param name="values">プロパティ値。</param>
/// <returns>成功時は読み取った値。それ以外は null。</returns>
public static uint?ReadUInt32(_tagpropertykey key, IPortableDeviceValues values)
{
try
{
uint value;
values.GetUnsignedIntegerValue(key, out value);
return(value);
}
catch (Exception exp)
{
Debug.WriteLine(exp.Message);
return(null);
}
}
/// <summary>
/// プロパティ値から、符号なし 32 ビット整数値を読み取ります。
/// </summary>
/// <param name="key">識別子。</param>
/// <param name="values">プロパティ値。</param>
/// <returns>成功時は読み取った値。それ以外は null。</returns>
public static uint? ReadUInt32( _tagpropertykey key, IPortableDeviceValues values )
{
try
{
uint value;
values.GetUnsignedIntegerValue( key, out value );
return value;
}
catch( Exception exp )
{
Debug.WriteLine( exp.Message );
return null;
}
}
