Import

FreeBASIC

Import
 
External linkage attribute for public data located in DLL's

Syntax

Extern Import symbolname[( subscripts)] [ Alias "aliasname"] [ As DataType] [, ...]

Description

Is used only on Win32 platforms with the Extern keyword and is needed to access global variables in DLLs. This is due to the level of indirection on any such access: an implicit pointer dereference.

Example

/* mydll.c :
    compile With
      gcc -Shared -Wl,--strip-all -o mydll.dll mydll.c
*/
__declspec( dllexport ) Int MyDll_Data = 0x1234;


/'  import.bas :
 Compile with
   fbc import.bas
'/
#inclib "mydll"

Extern Import MyDll_Data Alias "MyDll_Data" As Integer

Print "&h" + Hex( MyDll_Data )

' Output:
' &h1234



Dialect Differences

  • Not available in the -lang qb dialect unless referenced with the alias __Import.

Differences from QB

  • New to FreeBASIC

See also