CODEWITHSUNDEEP
javac++java-native-interface
user2358330
user2358330

Reputation: 387

C++ to Java interface

I am implementing a C++ to Java interface using JNI. I have a C++ function as follows:

static int testhandler(void *arg, uint32_t stream, uint32_t func, const char* name, uint32_t funcgroup, uint32_t source);

When I have to call this in Java using eclipse, I do it as follows:

public void handle(int stream, int func,char name, int group, int token);

But I am not able to read the const char part in Java using Eclipse. Does anybody know what the problem might be? Should I call the method in Java in some other manner?

Upvotes: 0

Views: 330

Answers (1)

Tsar Ioann
Tsar Ioann

Reputation: 444

You can't just pass const char* string through JNI.

Create a jstring from it using function NewStringUTF (it is member-function of class JNIEnv). Then pass it to Java's String.

Upvotes: 1

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