How to run a external pogram in c++?

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4.00/5 (1 vote)

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Hellowm I think this question is quite simple.
How to execute a external program in C++?
I cant use the ShellExecute() Function it displays an error message...
Error Message:
Error 25 error C3861: 'shellexecute': identifier not found d:\files\antivirus\gui\gui.cpp 331

MS Visual Studio 2005 C++

Is I use the system() dunction my application will hung! :(

I dont know what to do! Please Help me!
Thank You in advanced!

Posted 17-Apr-11 23:10pm

sora97

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3 solutions

Solution 3

[Adding to the other answers here]

See A newbie's elementary guide to spawning processes[^]

Wrote that some years back. Should be still relevant.

Posted 18-Apr-11 3:52am

Nish Nishant

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Guyverthree · Accepted Answer · 2011-04-17T23:17:00

Solution 1

PROCESS_INFORMATION piInfo;

CreateProcess(_T"function path goes here",NULL,NULL,NULL,FALSE,NULL,NULL,NULL,NULL,&piInfo);

You can try using createprocess as above.

MSDN link :
[^]

Posted 17-Apr-11 23:17pm

Guyverthree

Updated 18-Apr-11 3:48am

v4

Comments

sora97 18-Apr-11 5:25am

sorry but it displays another error message
Error 25 error C2664: 'CreateProcessA' : cannot convert parameter 1 from 'const wchar_t [21]' to 'LPCSTR' d:\files\burn_prj\my programs\gpm antivirus\gpmav-gui\clamav-gui.cpp 339

Guyverthree 18-Apr-11 5:31am

Sorry i use mobile programming alot and that defaults to Wide string.

Remove the L from the front of the path

sora97 18-Apr-11 5:37am

ok

Aamir Butt 18-Apr-11 8:47am

A better solution is to use _T instead of L. This will make sure that a string is according to the project settings. In the above code, it would be: _T("function path goes here")

Guyverthree 18-Apr-11 9:09am

Aamir Butt is correct I should have used the macro instead of the L parameter.
I have changed the solution to improve it.

Manfred Rudolf Bihy 18-Apr-11 9:46am

Nice one! 5+

Niklas L · Accepted Answer · 2011-04-18T02:42:00

Solution 2

To get ShellExecute[^] to compile, you have to #include <Shellapi.h>
That will rid you of the C3861 error.

Posted 18-Apr-11 2:42am

Niklas L

Comments

Guyverthree 18-Apr-11 9:10am

this does fix the issue +5

Manfred Rudolf Bihy 18-Apr-11 9:46am

Good answer! 5+