On Jan 7, 2009, at 7:15 AM, Jorge Nieto-Madrid wrote:
Hi Timothy,
I stopped using JNA for a while. Now I started using it again and
have a trivial question: How do I declare an interface for Non-
native/Custom DLLs?
I know that for all DLLs in C:\windows\system32 I must just extend
StdCallLibrary, like in this code snipset (for Kernel32.dll):
public interface Kernel32 extends StdCallLibrary {
// Method declarations, constant and structure definitions go here
Kernel32 INSTANCE = (Kernel32)
Native.loadLibrary("kernel32", Kernel32.class,
W32API.DEFAULT_OPTIONS);
// Optional: wraps every call to the native library in a
// synchronized block, limiting native calls to one at a time
Kernel32 SYNC_INSTANCE = (Kernel32)
Native.synchronizedLibrary(INSTANCE);
.......
So the vital part is: Native.loadLibrary("kernel32", Kernel32.class,
W32API.DEFAULT_OPTIONS);
Lets assume I have the library Saphira.dll in the path C:\Spahira\
How can define interface for it??
You can use depends.exe to examine the contents of the library
(function names). If you have a C header for it, that will tell you
whether it uses the stdcall or c calling convention. You can probably
omit the options to the loadLibrary call. You should put the dll in
your PATH or in java.library.path, or in jna.library.path.
Native.loadLibrary("Saphira", Saphira.class)
10 messages in net.java.dev.jna.usersRe: [jna-users] Using custom librarie...
