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I am using javah.exe (Win2K platform) to generate function
prototypes for interfacing with java. If I run it from the
command line, it seems to work fine. However, I have set up
a custom build step in my project in VC6 and Javah.exe is
now generating function names that look like this:

JNIEXPORT jfloat JNICALL Java___0005cDebug_0005cInterface_GetTimeValue
(JNIEnv *, jobject);

When I run directly from the command line, I get this:

JNIEXPORT jfloat JNICALL Java_Interface_GetTimeValue
(JNIEnv *, jobject);

Here are my custom build rules:
javac -d $(OutDir) $(InputPath)
javah -o $(ProjDir)\JavaInterface\$(InputName).h $(OutDir)\$(InputName)

Now I want to know why the heck it is inserting "__0005cDebug_0005c"
into the names and how I can get rid of it.

Thanks
Murrgon

Murrgon wrote:
> Now I want to know why the heck it is inserting "__0005cDebug_0005c"
> into the names and how I can get rid of it.

Nevermind, i fixed it using the -classpath option for javah.exe.

On Tue, 08 Jun 2004 12:24:26 -0400, Murrgon wrote:
> I am using javah.exe (Win2K platform) to generate function
> prototypes for interfacing with java. If I run it from the command
> line, it seems to work fine. However, I have set up a custom build
> step in my project in VC6 and Javah.exe is now generating function
> names that look like this:
>
> JNIEXPORT jfloat JNICALL Java___0005cDebug_0005cInterface_GetTimeValue
> (JNIEnv *, jobject);

> Now I want to know why the heck it is inserting "__0005cDebug_0005c"
> into the names

Because you told it to.

> and how I can get rid of it.

javah needs the fully qualified name of the *class*, not the name of
the class *file*. Unless I'm mistaken, \u005c is a baskslash, which
seems to be part of a filename passed to javah.

Without knowing the contents of the variables in your custom build
rules, it's hard to be more specific. But if you display the actual
command line generated I'm sure you'll see a difference between that
and the one you ran manually.

/gordon

--
[ do not email me copies of your followups ]
g o r d o n + n e w s @ b a l d e r 1 3 . s e

On Tue, 08 Jun 2004 12:24:26 -0400, Murrgon <>
wrote or quoted :

>JNIEXPORT jfloat JNICALL Java___0005cDebug_0005cInterface_GetTimeValue

See http://mindprod.com/jgloss/jni.html

you are not invoking Javah correctly.

--
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming.
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.