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Java Data Type Q&A » byte » jni 




1. Passing a byte[] in Java to a function in C through JNI: how to use jarraybyte    stackoverflow.com

This is the first time that I use the JNI and also the first time that I have to write some lines in C. What I am trying to do is very ...

2. JNI: passing bytes from c++ to java    stackoverflow.com

HANDLE hFile = CreateFileA("C:\\myfile.zip", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
const int size = GetFileSize(hFile, NULL);
char* buffer = new char[size];
DWORD read;
ReadFile(hFile, buffer, size, &read, NULL);

jclass cls = ...;
jmethodID id = ...;

jbyteArray arr ...

3. GetByteArrayRegion in JNI    stackoverflow.com

The question is: Suppose I use the function: (* env) -> GetByteArrayRegion (env, array, 0, len, (jbyte *)buf); In this case, a certain number of bytes written from the array to the buf or ...

4. Copying only a part of a buffer from native code to Java using JNI    stackoverflow.com

I have a very large char buffer in C and need to copy some part of it to a Java array. Specifically, I need the elements starting at 16,384 and ending ...

5. How do I create a byte[][](java) in C using JNI and pass it to an object    stackoverflow.com

I know how to create a jobject and would like to convert an existing char ** into a corresponding byte[][] and pass it to the jobject using JNI. How would I go ...

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