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GeneralRe: How to convert string to double with trailing zeros after decimal Pin
Member 161354338-Nov-23 3:23
Member 161354338-Nov-23 3:23 
GeneralRe: How to convert string to double with trailing zeros after decimal Pin
Richard MacCutchan8-Nov-23 3:35
mveRichard MacCutchan8-Nov-23 3:35 
GeneralRe: How to convert string to double with trailing zeros after decimal Pin
Dave Kreskowiak8-Nov-23 4:20
mveDave Kreskowiak8-Nov-23 4:20 
GeneralRe: How to convert string to double with trailing zeros after decimal Pin
jschell8-Nov-23 7:12
jschell8-Nov-23 7:12 
AnswerRe: How to convert string to double with trailing zeros after decimal Pin
Ralf Meier8-Nov-23 9:02
professionalRalf Meier8-Nov-23 9:02 
AnswerRe: How to convert string to double with trailing zeros after decimal Pin
Dave Kreskowiak8-Nov-23 3:23
mveDave Kreskowiak8-Nov-23 3:23 
QuestionHow to use JNI without setting Environment Variables Pin
Valentinor16-Oct-23 1:54
Valentinor16-Oct-23 1:54 
AnswerRe: How to use JNI without setting Environment Variables Pin
Valentinor16-Oct-23 2:42
Valentinor16-Oct-23 2:42 
I managed to make it work:
C++
#include <string>
#include <iostream>
#include <chrono>
#include <thread>
#include <jni.h>
#include <Windows.h>

JavaVM* jvm = nullptr;

std::string createVM(std::string location) {
	std::string jvmLocation = location;
	jvmLocation.append("ThirdParty\\Eclipse Adoptium\\jre-17.0.7.7-hotspot\\bin\\servers\\jvm.dll");
	HMODULE hJVMDLL = LoadLibraryA(jvmLocation.c_str());
	typedef jint(JNICALL* fpCJV)(JavaVM**, void**, void*);
	if (hJVMDLL != NULL) {
		fpCJV JNI_CreateJavaVM = (fpCJV)::GetProcAddress(hJVMDLL, "JNI_CreateJavaVM");
		location.insert(0, "-Djava.class.path=");
		location.append("Data\\Java");
		JavaVMInitArgs vm_args;
		JavaVMOption* options = new JavaVMOption[1];
		options[0].optionString = &location[0];
		vm_args.version = JNI_VERSION_10;
		vm_args.nOptions = 1;
		vm_args.options = options;
		vm_args.ignoreUnrecognized = false;
		JNIEnv* env = nullptr;
		jint rc = JNI_OK;
		if (jvm == nullptr) {
			rc = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
		}
		else {
			rc = jvm->AttachCurrentThread((void**)&env, NULL);
		}
		delete[] options;
		if (rc != JNI_OK) {
			if (rc == JNI_EVERSION)
				return "JNI_EVERSION";
			else if (rc == JNI_ENOMEM)
				return "JNI_ENOMEM";
			else if (rc == JNI_EINVAL)
				return "JNI_EINVAL";
			else if (rc == JNI_EEXIST)
				return "JNI_EEXIST";
			else
				return "JNI_FATALERROR";
		}
		return "JNI_CREATED";
	}
	else {
		return "ERROR_LOADING_DLL";
	}
}

std::string createIdentification() {
	JNIEnv* env;
	jvm->AttachCurrentThread((void**)&env, NULL);
	jclass jClass = env->FindClass("JavaMethods");

	if (jClass == nullptr) {
		return "ClassNotFound cI";
	}
	else {
		jmethodID methodID = env->GetStaticMethodID(jClass, "createIdentification", "()Ljava/lang/String;");
		if (methodID == nullptr) {
			return "MethodNotFound cI";
		}
		else {
			jboolean isCopy;
			jstring jResult = (jstring)env->CallStaticObjectMethod(jClass, methodID);
			const char* string = env->GetStringUTFChars(jResult, &isCopy);
			std::string result = string;
			env->ReleaseStringUTFChars(jResult, string);

			return result;
		}
	}
}

int main() {
	std::cout << createVM("Location_To_App_Folder").c_str() << std::endl;
	if (jvm != NULL) {
		std::cout << createIdentification().c_str();
	}

	std::this_thread::sleep_for(std::chrono::milliseconds(2000));
	return 0;
}


Thank you @Richard-MacCutchan for the original code!
AnswerRe: How to use JNI without setting Environment Variables Pin
jschell16-Oct-23 5:58
jschell16-Oct-23 5:58 
GeneralRe: How to use JNI without setting Environment Variables Pin
Valentinor16-Oct-23 6:41
Valentinor16-Oct-23 6:41 
GeneralRe: How to use JNI without setting Environment Variables Pin
jschell17-Oct-23 6:47
jschell17-Oct-23 6:47 
GeneralRe: How to use JNI without setting Environment Variables Pin
Valentinor17-Oct-23 20:26
Valentinor17-Oct-23 20:26 
QuestionSending file though socket as byte[] Pin
JohnCodding25-Sep-23 21:52
JohnCodding25-Sep-23 21:52 
GeneralRe: Sending file though socket as byte[] Pin
JohnCodding25-Sep-23 22:33
JohnCodding25-Sep-23 22:33 
GeneralRe: Sending file though socket as byte[] Pin
Richard MacCutchan25-Sep-23 23:32
mveRichard MacCutchan25-Sep-23 23:32 
GeneralRe: Sending file though socket as byte[] Pin
JohnCodding26-Sep-23 0:44
JohnCodding26-Sep-23 0:44 
GeneralRe: Sending file though socket as byte[] Pin
Richard MacCutchan26-Sep-23 0:58
mveRichard MacCutchan26-Sep-23 0:58 
GeneralRe: Sending file though socket as byte[] Pin
JohnCodding26-Sep-23 1:53
JohnCodding26-Sep-23 1:53 
GeneralRe: Sending file though socket as byte[] Pin
jschell3-Oct-23 5:42
jschell3-Oct-23 5:42 
GeneralRe: Sending file though socket as byte[] Pin
JohnCodding13-Oct-23 0:35
JohnCodding13-Oct-23 0:35 
GeneralRe: Sending file though socket as byte[] Pin
jschell13-Oct-23 8:19
jschell13-Oct-23 8:19 
Question[Solved] Getting and setting a File's all attributes Pin
Valentinor24-Sep-23 23:47
Valentinor24-Sep-23 23:47 
AnswerRe: Getting and setting a File's all attributes Pin
Victor Nijegorodov25-Sep-23 0:04
Victor Nijegorodov25-Sep-23 0:04 
GeneralRe: Getting and setting a File's all attributes Pin
Valentinor25-Sep-23 0:17
Valentinor25-Sep-23 0:17 
Answer[Solution] Re: Getting and setting a File's all attributes Pin
Valentinor25-Sep-23 7:26
Valentinor25-Sep-23 7:26 

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