End_Type

Obsolete

The End_Type command is obsolete. See the Struct command for creating and using structured types in DataFlex.

Be aware of existing code using Type. Type definitions convert signed values to unsigned; structs do not. This could impact your code after converting to structs, where signed values were previously converted.

See Also: Field, Put, Type, Structured Types

Purpose

To declare a structure for the C programming language, for use with DLL calls from DataFlex programs.

Syntax

Type {type-name}
    Field {field-name} as {data-type}
    ...
End_Type

Where {type-name} is the name of the complex data type; {field-name} is the name of a field. There can be as many fields in the type declaration as you wish; and {data-type} is any DataFlex representation of a 'C' data type.

What It Does

Type enables you to create a complex data structure in memory for use in passing parameters for DLL calls from DataFlex programs.

Type tv_item
    Field tv_item.mask     as DWORD
    Field tv_item.hItem    as HANDLE
    Field tv_item.state     as DWORD
    Field tv_item.stateMask as DWORD
    Field tv_item.pszText   as POINTER
End_Type

Note

If you declare a structure, the size of the structure is automatically stored in a symbol called _Size.