#include <ArchiveFile.h>
Public Member Functions | |
| ItemHeader (void) | |
| Default constructor creating an empty ItemHeader. | |
Public Attributes | |
| u4byte | m_u4UniqueID |
| The unique ID of the item. | |
| u4byte | m_u4Type |
| The type of the item. | |
| u4byte | m_u4SubType |
| The subtype of the item. | |
| union { | |
| u4byte m_u4VersionNumber | |
| The version number of the item. | |
| struct { | |
| u1byte m_u1MajorMajorVersion | |
| The major major version number of the item. | |
| u1byte m_u1MajorMinorVersion | |
| The major minor version number of the item. | |
| u1byte m_u1MinorMajorVersion | |
| The minor major version number of the item. | |
| u1byte m_u1MinorMinorVersion | |
| The minor minor version number of the item. | |
| } | |
| }; | |
| u4byte | m_u4DataCompression |
| Information about the compression of the item. | |
| u1byte | m_u1IsDataExternal |
| Defines whether the data is internal or external. | |
| u4byte | m_u4NameLength |
| The length of the item's name. | |
| u4byte | m_u4DataOffset |
| The offset/position of the item's data. | |
| u4byte | m_u4DataDecompressedLength |
| The length of the item's data when decompressed. | |
| u4byte | m_u4DataCompressedLength |
| The length of the item's data when compressed. | |
| u4byte | m_u4StructureDataLength |
| This component describes the length of the structure description for the item. | |
| Arxx::ItemHeader::ItemHeader | ( | void | ) | [inline] |
Default constructor creating an empty ItemHeader.
| union { ... } |
Defines whether the data is internal or external.
The major major version number of the item.
The major minor version number of the item.
The minor major version number of the item.
The minor minor version number of the item.
The length of the item's data when compressed.
The length of the data when it is compressed. This member does not imply that the data actually IS compressed. It merely gives you a 'would-be' information. If the item's data IS compressed, this member states the length of the compressed data block. On the other hand, when the item's data is decompressed, this member is invalid. (In the current implementation this member actually states the length of the last compression, but it CAN only give you a hint about the size of the data, in case you decompressed it externaly.
Information about the compression of the item.
The state of compression for the item. Defines the level of compression that was used with the zlib functions or 0 to indicate no compression.
The length of the item's data when decompressed.
The length of the data when it is decompressed. This member does not imply that the data actually IS decompressed. It merely gives you a 'would-be' information.
The offset/position of the item's data.
The offset specifies the number of bytes to be added to the begin/offset of the data part of the archive.
The length of the item's name.
The length of the item's name without the trailing zero character.
This component describes the length of the structure description for the item.
The length of the structure buffer is needed when it will be read on loading a library. The structure of the library is part of its header information and therefore placed in the ItemHeader. The structure data follows immediately after the closing 0 of the item's name.
The subtype of the item.
The subtype of the item.
The type of the item.
The type of the item.
The unique ID of the item.
The unique ID of an item is unique in respect to the parenting archive.
The version number of the item.
The item's version number in one data item of 4 byte length. Use the u1bytes the get specific version information easy.
1.4.7