如何从注册表读取二进制数据到字节数组 [英] How can I read binary data from registry to byte array

问题描述

我使用以下代码将字节数组保存到注册表中

I saved a byte array to registry using following code

Byte[] value = new byte[16]{
    0x4a,0x03,0x00,0x00, 
    0x45,0x02,0x00,0x00, 
    0xb7,0x00,0x00,0x00, 
    0x9d,0x00,0x00,0x00
};

RegistryKey key = Registry.CurrentUser.CreateSubKey(KeyName);
key.SetValue(@"Software\Software\Key", value, RegistryValueKind.Binary);

这是使用上面的代码创建的密钥:

Here is the key created using above code:

[HKEY_CURRENT_USER\Software\Software\Key]  
    "LOC"=hex:4a,03,00,00,45,02,00,00,b7,00,00,00,9d,00,00,00

现在，我想将相同的数据读回字节数组格式.以下代码可以读取相同的数据，但输出为object类型.

Now I want to read the same data back to byte array format. Following code can read the same data but the output is of type object.

RegistryKey key = Registry.CurrentUser.OpenSubKey(KeyName);
object obj =  key.GetValue(@"Software\Software\Key", value);

此处强制转换为byte []不起作用.我知道我可以使用序列化器或流来完成此任务.我想知道是否有一种更简单的方法可以将数据读回byte []类型(两个线性代码)?

Here casting to byte[] does not work. I know I can use serializer or streams to achieve this task. I would like to know if there is an easier way to read data back to byte[] type (A two liner code)?

请注意此问题使用C ++

推荐答案

要将字节数组写入注册表，请使用以下代码

To write a byte array to registry use following code

Byte[] value = new byte[]{
    0x4a,0x03,0x00,0x00, 
    0x45,0x02,0x00,0x00, 
    0xb7,0x00,0x00,0x00, 
    0x9d,0x00,0x00,0x00
};

RegistryKey key = Registry.CurrentUser.CreateSubKey(KeyName);
key.SetValue(@"Software\AppName\Key", value, RegistryValueKind.Binary);

要从注册表中将数据取回为Byte []格式，请使用以下命令:

To Retrieve the data back from registry into Byte[] format use following:

RegistryKey key = Registry.CurrentUser.OpenSubKey(KeyName);
byte[] Data =  (byte[]) key.GetValue(@"Software\AppName\Key", value);

注意: CurrentUser 是密钥位置的根名称，并指向 HKEY_CURRENT_USER

Note: CurrentUser is name of the root for your Key location and points to HKEY_CURRENT_USER

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