鸿蒙 IMLib-v26.8.0
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    Enumeration MessageBlockSourceType

    消息被拦截的触发来源

    1.0.0

    Index
    Default Extension Modification
    Default: 0

    默认，原始消息内容被拦截

    Extension: 1

    消息扩展被拦截

    Modification: 2

    修改的消息内容被拦截

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