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How to launch an application

Posted on 2000-03-31
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172 Views
Last Modified: 2013-11-20
I need to execute from my application another program (not Notepad!) and this program must open a txt file.
I tried the following:

void Launch()
{
SHELLEXECUTEINFO aShellExecStruct;
      aShellExecStruct.cbSize = sizeof(SHELLEXECUTEINFO);
      aShellExecStruct.fMask = SEE_MASK_NOCLOSEPROCESS;
      aShellExecStruct.hwnd = ::GetDesktopWindow();
      aShellExecStruct.lpVerb = "open";
      aShellExecStruct.lpFile ="application.exe";
      aShellExecStruct.lpParameters = NULL;
      aShellExecStruct.lpDirectory = "c:\\temp";
      aShellExecStruct.nShow = SW_SHOWNORMAL;
      
      
      BOOL aResult = ::ShellExecuteEx(&aShellExecStruct);      
      if (aResult)
      {
            HANDLE aProcHandle = aShellExecStruct.hProcess;
            if (aProcHandle)
            {
                  ::WaitForSingleObject(aProcHandle, INFINITE);
                  AfxMessageBox("application is done.");
            }
      }
      else
      {
            AfxMessageBox("Could not start the application");
      }
}

This code launchs the application correcly but I don't know how to open a document in this application.

Any idea?

Thanks
0
Comment
Question by:qocarlos
6 Comments
 
LVL 5

Expert Comment

by:vachooho
ID: 2673461
aShellExecStruct.lpParameters = "document_File_name";

most applications has the ability to open document  by specifying it in their command line

try this

0
 
LVL 3

Author Comment

by:qocarlos
ID: 2673808
Thanks,
I've also written the application I must execute. The problem is that in this application there is the line
cmdInfo.m_nShellCommand=CCommandLineInfo::FileNothing

in order to keep the application from creating a blank document at startup.

For this reason, when I specify the file in the command line, nothing is opened.
How can I solve this problem?
0
 
LVL 8

Expert Comment

by:gelbert
ID: 2674271
There are two options:

1. Change your application that before you reset command line(cmdInfo.m_nShellCommand) you save command line in some other variable. This way you would have name of a docunent to open and avoid creating blank document

2. Make COM Outproc server out of your application. Then after creation call interface method to specify name of document to open
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LVL 1

Expert Comment

by:tvanceplus
ID: 2674353
try using the

WinExec(LPCSTR filename,NULL)

function. It is easier to use than the shell commands


Good Luck!
0
 
LVL 5

Accepted Solution

by:
vachooho earned 100 total points
ID: 2674803
if(
cmdInfo.m_nShellCommand == CCommandLineInfo::FileNew)  cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing;

will not open new empty document but will allow to open file.


0
 
LVL 3

Author Comment

by:qocarlos
ID: 2675797
Thanks!

0

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