Hello Mahesh,
To call a C++ executable (`.exe`) from MATLAB, you can use the system or ! command to execute the program directly from the MATLAB environment. Here is a step-by-step guide on how you can achieve this:
Step 1: Prepare Your Executable
Ensure that your C++ executable is compiled and ready to be executed. You should know the exact command-line arguments it requires.
Step 2: Use the system Command in MATLAB
You can call your executable using the system function. This function allows you to execute operating system commands from within MATLAB.
% Define the path to your executable
exePath = 'C:\path\to\your\program.exe';
% Define any arguments your program needs
arguments = 'arg1 arg2 arg3'; % Replace with actual arguments
% Construct the command string
commandStr = sprintf('"%s" %s', exePath, arguments);
% Call the executable
[status, cmdout] = system(commandStr);
% Check the status
if status == 0
disp('Execution successful:');
disp(cmdout); % Display the output from the executable
else
disp('Execution failed:');
disp(cmdout); % Display the error message
end
Step 3: Handle Input and Output
- Input Arguments: If your executable requires inputs, pass them as part of the arguments string. Ensure that the arguments are formatted correctly for the command line.
- Output Handling: The system function captures the standard output and error streams of the executable. You can use cmdout to process or display this output within MATLAB.
Step 4: Alternative Using ! Operator
Alternatively, you can use the ! operator to execute the command:
!C:\path\to\your\program.exe arg1 arg2 arg3
This method is simpler but does not capture the output or status code in MATLAB variables.
I hope this helps!
