Import

External linkage attribute for public data located in DLL's

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

Description
   Is used only (with the Extern keyword) in external modules to access 
   global variables from Win32 DLLs: the variable names will be added to 
   the dynamic library import list so that their addresses can be fixed at 
   run-time.
   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
   * Extern

