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Execute a Console Application From VC++

, 16 Apr 2005 CPOL
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To execute a console application from VC++ and retrieve the messages shown in the console. Get output messages from a DOS or console application to our MFC Application.


To Execute a Console Application From VC++ and retrieve the messages shown in the console.

In many situations we may need to execute a console application or a DOS application from within our MFC application. ShellExcecute can be used for this purpose, but can only be used to run the application. Messages shown in the console is not reachable. In such cases the following procedure can help.

Here we create a read write pipe (two separate pipes, one for reading and one for writing).

Then we use CreateProcess to execute the process. Createprocess must be supplied with pointers to variables of STARTUPINFO and PROCESS_INFORMATION structures.

The pipes created are assigned to STARTUPINFO structure before it is passed to the CreateProcess function.

The CreateProcess function is used to run a new program.

        LPCWSTR lpszImageName, 
        LPCWSTR lpszCmdLine, 
        LPSECURITY_ATTRIBUTES lpsaProcess, 
        LPSECURITY_ATTRIBUTES lpsaThread, 
        BOOL fInheritHandles, 
        DWORD fdwCreate, 
        LPVOID lpvEnvironment, 
        LPWSTR lpszCurDir, 
        LPSTARTUPINFOW lpsiStartInfo, 
        LPPROCESS_INFORMATION lppiProcInfo);
  • lpszImageName

    Pointer to a null-terminated string that specifies the module to execute.

  • lpszCmdLine

    Pointer to a null-terminated string that specifies the command line to execute. The system adds a null character to the command line, trimming the string if necessary, to indicate which file was actually used.

The function ExecuteExternalFile, takes two arguments:

  1. the application to be executed.
  2. the arguments.

It executes the application and returns the messages that are printed into the console as a CString.

CString ExecuteExternalFile(CString csExeName, CString csArguments)
  CString csExecute;
  csExecute=csExeName + " " + csArguments;
  secattr.nLength = sizeof(secattr);
  secattr.bInheritHandle = TRUE;

  HANDLE rPipe, wPipe;

  //Create pipes to write and read data
  char command[1024]; strcpy(command,  

  //Create the process here.
  CreateProcess(0 command,0,0,TRUE,

  //now read the output pipe here.
  char buf[100];
  DWORD reDword; 
  CString m_csOutput,csTemp;
  BOOL res;
  return m_csOutput;

Hope this code will be useful for you.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Software Developer
India India
Software Engineer,
Technopark, Kerala.

Rx 135 Owner
Yamaha Fan.

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Comments and Discussions

Questionsome time ReadFile not responding Pin
Le@rner15-Apr-13 2:53
memberLe@rner15-Apr-13 2:53 
GeneralMissing calls to CloseHandle, causes memory leak Pin
Member 15897532-May-11 5:42
memberMember 15897532-May-11 5:42 
GeneralI found another method, by searching in msdn.... Pin
Steppenwolf19-Jan-11 22:48
memberSteppenwolf19-Jan-11 22:48 
GeneralMy vote of 2 Pin
Steppenwolf19-Jan-11 22:43
memberSteppenwolf19-Jan-11 22:43 
QuestionAdd write functionality Pin
Marco Fiaschi2-Aug-10 9:07
memberMarco Fiaschi2-Aug-10 9:07 
GeneralProblem with buffering Pin
toschu7220-Nov-08 2:37
membertoschu7220-Nov-08 2:37 
GeneralParser 2 Pin
suhi22-Apr-08 4:37
membersuhi22-Apr-08 4:37 
GeneralParser Pin
suhi22-Apr-08 4:22
membersuhi22-Apr-08 4:22 
Hi All,
I am new to MFC.
Can anyone provide me the sample code in MFC for writing parser for
text file.

QuestionHow to receive numeric results Pin
smzhaq26-Sep-07 19:10
membersmzhaq26-Sep-07 19:10 
AnswerRe: How to receive numeric results Pin
Evan Lin4-Sep-08 17:06
memberEvan Lin4-Sep-08 17:06 
QuestionPossible with MFC application Pin
kazim bhai30-Aug-07 3:00
memberkazim bhai30-Aug-07 3:00 
GeneralNice one. Thanks Pin
hungrytom28-Aug-07 0:59
memberhungrytom28-Aug-07 0:59 
QuestionGreat job, but seem not compatible with unicode ? Pin
Olivier Booklage22-Feb-07 10:57
memberOlivier Booklage22-Feb-07 10:57 
AnswerRe: Great job, but seem not compatible with unicode ? Pin
Olivier Booklage22-Feb-07 21:57
memberOlivier Booklage22-Feb-07 21:57 
GeneralGreat! Keep it up Pin
rm_pkt7-Feb-07 20:29
memberrm_pkt7-Feb-07 20:29 
Generalcool Pin
zoz18-Jan-07 11:44
memberzoz18-Jan-07 11:44 
GeneralCool n Nice implementation Pin
rassg17-Jan-07 19:36
memberrassg17-Jan-07 19:36 
QuestionCan we keep the output in the console as well? Pin
c.sunita3-Jan-07 8:58
memberc.sunita3-Jan-07 8:58 
GeneralCool! Pin
Steve_pqr14-Dec-06 10:00
memberSteve_pqr14-Dec-06 10:00 
Generalexcellent Pin
stephen(china)12-Oct-06 20:42
memberstephen(china)12-Oct-06 20:42 
GeneralExcellent article-just what I wanted Pin
dba4-Sep-06 0:16
memberdba4-Sep-06 0:16 
Generalsystem call Pin
himakiran25-Aug-06 12:42
memberhimakiran25-Aug-06 12:42 
QuestionProcess waiting answer Pin
RickyC10-Apr-06 2:42
memberRickyC10-Apr-06 2:42 
AnswerRe: Process waiting answer Pin
Smith_TVPM4-Sep-06 22:16
memberSmith_TVPM4-Sep-06 22:16 
GeneralRe: Process waiting answer Pin
12kaunas29-Mar-07 14:25
member12kaunas29-Mar-07 14:25 

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