JNI: write into Java array given by parameter

Question

I have the following JNI function:

JNIEXPORT void JNICALL Java_org_kuku_myProj_myClass
      (JNIEnv *env, jclass java_class, jbyteArray byte_array, jcharArray char_array) {


}

I want to write characters into the actual jcharArray passed to my function. How can I do it?

Oo.oO · Accepted Answer · 2017-06-12 12:21:11Z

1

Take a look here:

http://jnicookbook.owsiak.org/recipe-No-013/

where you can take a look at: (*env)->ReleaseBooleanArrayElements(env, array, body, mode) with different modes of change acceptance.

/* release body when you decide it is no longer needed
    Pass changes back to Java */
(*env)->ReleaseCharArrayElements(env, array, body, JNI_COMMIT);

Hope that helps.

edited Jun 12, 2017 at 12:21

answered Jun 12, 2017 at 12:09

Oo.oO

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