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Inside Macintosh: More Macintosh Toolbox /

Chapter 4 - List Manager / List Manager Reference

Data Structures

The Data Handle

The List Manager uses a data handle to store information about a list. The DataHandle data type defines a data handle.

TYPE  DataArray         = PACKED ARRAY[0..32000] OF Char;
      DataPtr           = ^DataArray;
      DataHandle        = ^DataPtr;

Your application should not change the information in a data handle directly. Your application can, however, read data stored in a list's data handle directly by calling the GetCellDataLocation procedure to find the offset of a cell's data into the data handle and the length of the cell's data.