SecPkgContext_StreamSizes (Windows CE 5.0)

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This structure indicates the sizes of the various stream parts for use with the message support functions. The QueryContextAttributes function uses this structure.

typedefstruct _SecPkgContext_StreamSizes {unsignedlongcbHeader;unsignedlongcbTrailer;unsignedlongcbMaximumMessage;unsignedlongcBuffers;unsignedlongcbBlockSize;}SecPkgContext_StreamSizes, *PSecPkgContext_StreamSizes;


  • cbHeader**
    Size, in bytes, of the header portion. If zero, no header is used.
  • cbTrailer**
    Size, in bytes, of the trailer portion. If zero, no trailer is used.
  • cbMaximumMessage**
    Size, in bytes, of the largest message that can be encapsulated.
  • cBuffers**
    Number of buffers to pass.
  • cbBlockSize**
    Preferred integral size of the messages. For example, 8 indicates that messages should be of size 0 mod 8 for optimal performance. Messages other than this block size can be padded.


OS Versions: Windows CE 2.10 and later.
Header: Sspi.h.

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