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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_GetDVRConfig

### Interface Definition

C++C#

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    BOOL NET_SDK_GetDVRConfig(
        LONG lUserID,
        DWORD dwCommand,
        LONG lChannel,
        LPVOID lpOutBuffer,
        DWORD dwOutBufferSize,
        LPDWORD lpBytesReturned,
        BOOL bDefautlConfig);

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    public static extern bool NET_SDK_GetDVRConfig(
        int lUserID,
        uint dwCommand,
        int lChannel,
        IntPtr lpOutBuffer,
        int dwOutBufferSize,
        ref int lpBytesReturned,
        bool bDefautlConfig);

### Function Description

Get device configuration (only supports 3.0DVR).

### Parameter Description

Parameters | Type | Remark
--- | --- | ---
lUserIDin | LONG | User ID, the return value of `NET_SDK_Login` or `NET_SDK_LoginEx`.
dwCommandin | DWORD | Configuration type, see `DD_CONFIG_ITEM_ID`.
lChannelin | LONG | Channel number, starting from 0. This parameter is invalid for IPC devices.
lpOutBufferout | LPVOID | Configuration data pointer.
dwOutBufferSizein | DWORD | The size of the space requested by lpOutBuffer.
lpBytesReturnedout | LPDWORD | The actual size of the data returned.
bDefautlConfigin | BOOL | Whether it is the default configuration, TRUE means getting the default configuration.

### Return Value

- Type：BOOL

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

### Remarks

Different dwCommands correspond to different data structures stored in lpOutBuffer. For example, when dwCommand is DD_CONFIG_ITEM_DEVICE_INFO, lpOutBuffer stores `DD_DEVICE_INFO`. For actual situations, refer to the description of `DD_CONFIG_ITEM_ID`.

Error Code