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Section

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The section is the third part of the property set stream and contains the actual property set values.

A section contains:

  • Byte count for the section which is inclusive of the byte count itself.
  • Array of 32-bit Property ID/Offset pairs.
  • Array of property Type Indicators/Value pairs.

Offsets are the distance from the start of the section to the start of the property (type, value) pair. This allows a section to be copied as an array of bytes without any translation of internal structure.

The following pseudo-structures illustrate the format of a section.

typedef struct tagPROPERTYSECTIONHEADER 
{ 
    DWORD  cbSection ;    // Size of Section 
    DWORD  cProperties ;  // Count of Properties in section 
} PROPERTYSECTIONHEADER; 
 
typedef struct tagPROPERTYIDOFFSET 
{ 
    DWORD  propid;    // Name of property 
    DWORD  dwOffset;  // Offset from start of section to property 
} PROPERTYIDOFFSET; 
 
typedef struct tagSERIALIZEDPROPERTYVALUE 
{ 
    DWORD  dwType;    // Property Type 
    BYTE   rgb[];     // Property Value 
} SERIALIZEDPROPERTYVALUE ;