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This SDK only works with devices released within the past 3 years. We regularly optimize and update the SDK to ensure compatibility and performance. We do not guarantee compatibility or provide technical support for devices older than 3 years.

# NET_SDK_CloudUpgradeNode

### Interface Definition

C++C#

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    BOOL NET_SDK_CloudUpgradeNode(
        LONG lUserID,
        LONG lChannel,
        char* versionGUID);

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    public static extern bool NET_SDK_CloudUpgradeNode(
        int lUserID,
        int lChannel,
        string versionGUID);

### Function Description

Cloud upgrade IPC under NVR

### Parameter Description

Parameters | Type | Remark
--- | --- | ---
lUserIDin | LONG | User ID, the return value of `NET_SDK_Login` or `NET_SDK_LoginEx`.
lChannelin | LONG | Channel number, starting from 0.
versionGUIDin | char* | The version number to be upgraded.

### Return Value

- Type：BOOL

- Remark：Returns TRUE if successful, FALSE if failed.

### Remarks

None

Error Code