Export
Declaration specifier to indicate that a procedure in a DLL should be visible from other programs
Syntax
`
{ Sub | Function } proc_name ( argumentlist ) [ As datatype ] Export
`
Description
If a function is declared with this clause in a DLL, it is added to the public export table, so external programs can dynamically link to it using DyLibSymbol.
Example
`
'' mydll.dll
'' in the DLL the function must be declared as export
Function AddNumbers Alias "AddNumbers" _
( _
ByVal operand1 As Integer, ByVal operand2 As Integer _
) As Integer Export
AddNumbers = operand1 + operand2
End Function
`
`
'' create a function pointer, arguments must be the same type
'' as in the original function
Dim AddNumbers As Function ( ByVal As Integer, ByVal As Integer ) As Integer
Dim hndl As Any Ptr
hndl=DyLibLoad("mydll.dll")
'' find the proc address (case matters!)
AddNumbers = DyLibSymbol( hndl, "AddNumbers" )
'' then call it ...
Print "1 + 2 = " & AddNumbers( 1, 2 )
Sleep
`
Dialect Differences

- Not available in the -lang qb dialect unless referenced with the alias `__Export`.

Platform Differences

- Dynamic link libraries are not available in DOS, as the OS doesn't support them.

Differences from QB

- New to Freebasic

See also

- `DyLibLoad`
- `DyLibSymbol`
- `Alias`