问题
Are there any free or paid SDK's for developing DVR client software, like "UMS Single client?" for C# or JAVA?
回答1:
You can ask your DVR's vendor for their specific SDK. There are no universal SDKs for DVRs, unless your DVR has a RSTP feature
来源：https://stackoverflow.com/questions/13230120/dvr-client-software-sdk-tools