salut j'essaie d’appeler des scripts matlab depuis qt creator , j'ai rajouté les bibliothèques nécessaires et j'ai exécuté l'exemple fournie par le site officiel de matlab mais j'obtiens qu'une fenêtre noire ou il est affichée : appuyez sur <Entrer> pour fermer cette fenêtre .
c'est quoi le probleme pour que le programme donne pas le résultat attendue et explique sur le site de matlab et si vous avez des autres exemples qui fait exécuter script matlab depuis qt merci de me les donner .

voila le code fournie par le site matlab :

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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/* $Revision: 1.1.6.4 $ */
/*
 *	engdemo.cpp
 *
 *	A simple program to illustrate how to call MATLAB
 *	Engine functions from a C++ program.
 *
 * Copyright 1984-2011 The MathWorks, Inc.
 * All rights reserved
 */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "engine.h"
#define  BUFSIZE 256
 
int main()
 
{
	Engine *ep;
	mxArray *T = NULL, *result = NULL;
	char buffer[BUFSIZE+1];
	double time[10] = { 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0 };
 
	/*
	 * Call engOpen with a NULL string. This starts a MATLAB process 
     * on the current host using the command "matlab".
	 */
	if (!(ep = engOpen(""))) {
		fprintf(stderr, "\nCan't start MATLAB engine\n");
		return EXIT_FAILURE;
	}
 
	/*
	 * PART I
	 *
	 * For the first half of this demonstration, we will send data
	 * to MATLAB, analyze the data, and plot the result.
	 */
 
	/* 
	 * Create a variable for our data
	 */
	T = mxCreateDoubleMatrix(1, 10, mxREAL);
	memcpy((void *)mxGetPr(T), (void *)time, sizeof(time));
	/*
	 * Place the variable T into the MATLAB workspace
	 */
	engPutVariable(ep, "T", T);
 
	/*
	 * Evaluate a function of time, distance = (1/2)g.*t.^2
	 * (g is the acceleration due to gravity)
	 */
	engEvalString(ep, "D = .5.*(-9.8).*T.^2;");
 
	/*
	 * Plot the result
	 */
	engEvalString(ep, "plot(T,D);");
	engEvalString(ep, "title('Position vs. Time for a falling object');");
	engEvalString(ep, "xlabel('Time (seconds)');");
	engEvalString(ep, "ylabel('Position (meters)');");
 
	/*
	 * use fgetc() to make sure that we pause long enough to be
	 * able to see the plot
	 */
	printf("Hit return to continue\n\n");
	fgetc(stdin);
	/*
	 * We're done for Part I! Free memory, close MATLAB figure.
	 */
	printf("Done for Part I.\n");
	mxDestroyArray(T);
	engEvalString(ep, "close;");
 
 
	/*
	 * PART II
	 *
	 * For the second half of this demonstration, we will request
	 * a MATLAB string, which should define a variable X.  MATLAB
	 * will evaluate the string and create the variable.  We
	 * will then recover the variable, and determine its type.
	 */
 
	/*
	 * Use engOutputBuffer to capture MATLAB output, so we can
	 * echo it back.  Ensure first that the buffer is always NULL
	 * terminated.
	 */
 
	buffer[BUFSIZE] = '\0';
	engOutputBuffer(ep, buffer, BUFSIZE);
	while (result == NULL) {
	    char str[BUFSIZE+1];
	    /*
	     * Get a string input from the user
	     */
	    printf("Enter a MATLAB command to evaluate.  This command should\n");
	    printf("create a variable X.  This program will then determine\n");
	    printf("what kind of variable you created.\n");
	    printf("For example: X = 1:5\n");
	    printf(">> ");
 
	    fgets(str, BUFSIZE, stdin);
 
	    /*
	     * Evaluate input with engEvalString
	     */
	    engEvalString(ep, str);
 
	    /*
	     * Echo the output from the command.  
	     */
	    printf("%s", buffer);
 
	    /*
	     * Get result of computation
	     */
	    printf("\nRetrieving X...\n");
	    if ((result = engGetVariable(ep,"X")) == NULL)
	      printf("Oops! You didn't create a variable X.\n\n");
	    else {
		printf("X is class %s\t\n", mxGetClassName(result));
	    }
	}
 
	/*
	 * We're done! Free memory, close MATLAB engine and exit.
	 */
	printf("Done!\n");
	mxDestroyArray(result);
	engClose(ep);
 
	return EXIT_SUCCESS;
}


et en mode débogage il s'affiche l'erreur suivant :

DURING STARTUP PROGRAM EXITED WHIT CODE 0xC0000135
the program is not being run