Passing Arguments to sytem("..." args);

Try

system("start /m /b htbasic.exe");

try to use system("start /m /b htbasic.exe");

OK. Testing with a fixed string, however i want to do it,
with the program name (for ex. htbasic.exe) and this name would be the contents of a variable and the line system ( ....) need to do a variable substitution.

For example:

std::string program_name = "htbasic.exe";
system("start /m /b" program_name);

The problem is that using quotes in the program_name this will prevent the variable substitution.

Due to i'm new using C and C++ i don't know how to do it in these languages, for ex. in Tcl i use often use this kind of statement using catch and exec.

OK. Testing with a fixed string, however i want to do it,
with the program name (for ex. htbasic.exe) and this name would be the contents of a variable and the line system ( ....) need to do a variable substitution.

For example:

std::string program_name = "htbasic.exe";
system("start /m /b" program_name);

The problem is that using quotes in the program_name this will prevent the variable substitution.

Due to i'm new using C and C++ i don't know how to do it in these languages, for ex. in Tcl i use often use this kind of statement using catch and exec.

You need to add the strings together before using the system function.

For example:

std::string program_name = "start htbasic.exe";
std::string MoreStuff = " /m /b";
std::string CompleteArgument = program_name + MoreStuff;
system(CompleteArgument.c_str());

Don't forget to use the .c_str() function when passing a std::string object to the system() function.

FYI:
Using start is OK if your only programming for Win95/98, but it doesn't work in Windows NT/2000

OK. Testing with a fixed string, however i want to do it,
with the program name (for ex. htbasic.exe) and this name would be the contents of a variable and the line system ( ....) need to do a variable substitution.

For example:

std::string program_name = "htbasic.exe";
system("start /m /b" program_name);

The problem is that using quotes in the program_name this will prevent the variable substitution.

Due to i'm new using C and C++ i don't know how to do it in these languages, for ex. in Tcl i use often use this kind of statement using catch and exec.

OK. Testing with a fixed string, however i want to do it,
with the program name (for ex. htbasic.exe) and this name would be the contents of a variable and the line system ( ....) need to do a variable substitution.

For example:

std::string program_name = "htbasic.exe";
system("start /m /b" program_name);

The problem is that using quotes in the program_name this will prevent the variable substitution.

Due to i'm new using C and C++ i don't know how to do it in these languages, for ex. in Tcl i use often use this kind of statement using catch and exec.

clebano,
Please don't use the refresh buttton to veiw your question.

Instead click on the reload link on the upper right corner of your question.

Pressing the refresh key causes you to post the same comment you previously posted.

I think you forgot this question. I will ask Community Support to close it unless you finalize it within 7 days. Unless there is objection or further activity,  I will suggest to accept "Axter" comment(s) as an answer.

If you think your question was not answered at all, you can post a request in Community support (please include this link) to refund your points.
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PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
======
Werner

Uuuh,

Comment
From: Axter  Date: 10/31/2001 09:32PM PST  
You need to add the strings together before using the system function.
 

Comment
From: jkr  Date: 10/31/2001 06:00AM PST  
Well, in this case, create a function to do this:

int Start ( std::string& program_name) {

std::string start_and_opts = "start /m /b ";
std::string command = start_and_opts + program_name;

return ( system ( command.c_str());
}  

I think I was a _little_ earlier :o)

Sorry jkr, I guess I was reading too fast ...

Next try:

I will suggest to accept "jkr" comment(s) as an answer.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
======
Werner

>>Sorry jkr, I guess I was reading too fast ...

Never mind :o)