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Flexera beginner

Retrieve ouput Info/error from LaunchAppAndWait

Hello,

I'm new with installshield, I want to refactor my current Wix installer.

I have several command to launch ( like java.exe,  perl.exe,  .bat ...).

With LaunchAppAndWait the command is launch but return the exit code -1 ...

The most important part is I can't retrieve the output info or error.

If I put the line  SprintfMsiLog("ERROR_OUTPUT : %s",INFORMATION); that spent a lot of time to retrieve nothing...

Anyone can help, this part is very important to validate the refactoring ? Below my code

nExitCode = LaunchAppAndWait( perlDir+"perl\\bin\\perl.exe", args , LAAW_OPTION_HIDDEN );
SprintfMsiLog("ExitCode : %d", nExitCode);

 if nExitCode < 0 then
           SprintfMsiLog("Failed");
           //SprintfMsiLog("ERROR_OUTPUT : %s",INFORMATION);
            return ERROR_FUNCTION_FAILED;
else
          SprintfMsiLog("Success");
          //SprintfMsiLog("INFO_OUTPUT : %s",INFORMATION);
          return ERROR_SUCCESS;
endif;

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2 Replies
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Flexera
Flexera

Re: Retrieve ouput Info/error from LaunchAppAndWait

Hi @gdeclerck ,

 

Since LaunchAppAndWait calls  the following:

LaunchApplication( szProgram, szCmdLine, "", LAAW_STARTUPINFO.wShowWindow, LAAW_PARAMETERS.nTimeOut, nOptions | LAAW_OPTION_CHANGEDIRECTORY | LAAW_OPTION_FIXUP_PROGRAM );

 

If the application cannot be launched, the LAAW_PARAMETERS system variable’s nLaunchResult member contains the result of calling the Windows API function GetLastError after the CreateProcess or ShellExecuteEx call. If the function is successful and the LAAW_OPTION_WAIT option was specified, the LAAW_PARAMETERS system variable’s nLaunchResult member contains the return code of the launched application.

For more details:

https://docs.flexera.com/installshield23helplib/Subsystems/LangRef/helplibrary/LaunchApplication.htm...

Pseudo Code would be:

setuppath = SUPPORTDIR ^ "setup.exe";
msdecmd = "<setup.exe options go in here>";
LaunchAppAndWait(setuppath, msdecmd, LAAW_OPTION_WAIT);
if (LAAW_PARAMETERS.nLaunchResult != 0) then
    MessageBoxEx( "MSDE 2000 failed to install.", "Install", SEVERE );
    abort;
endif;

 

Hope it helps,

Thanks,

Jenifer

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Flexera beginner

Re: Retrieve ouput Info/error from LaunchAppAndWait

Sorry it doesn't work, I try with a more easier example but without any success.

To simplify I launch a directory creation by CLI.  I want to execute the command and retrieve the  error output message when the directory already exist.

 I  may have a misunderstanding about the LaunchApplication function because I try a lot of parameters but nothing works.

Maybe there is an other way to call a command and retrieve the ouput than installscript ? 

Here the code : 

 

function TestIS(hMSI)
    // To Do:  Declare local variables.
	STRING sysDir;
	STRING args;
	NUMBER nvSize, nExitCode;
begin
	if MSICONDITION_TRUE = MsiEvaluateCondition(hMSI, "Not Installed") then
		//Initialize variables
		nvSize = 256;
		MsiGetProperty (hMSI, "SystemFolder", sysDir, nvSize);
		args = " mkdir D:\Test\ ";
				
		LaunchAppAndWait( sysDir+"cmd.exe", args,LAAW_OPTION_WAIT);
		SprintfMsiLog("ExitCode : %d",LAAW_PARAMETERS.nLaunchResult);
		
		if (LAAW_PARAMETERS.nLaunchResult != 0) then
			MessageBoxEx( "MSDE 2000 failed to install.", "Install", SEVERE );
			abort;
		endif;
		return ERROR_SUCCESS;
    endif;
end;

 

 

 

 

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