BatchAdd Example

InstallShield 2016 » InstallScript Language Reference

The following example applies to:

InstallScript/InstallScript MSI Installations

/*-----------------------------------------------------------*\

*

* InstallShield Example Script

*

* Demonstrates the BatchAdd function.

*

* This example script adds three statements to a batch file.

* First, it adds a PATH statement.  Next, it adds a command to

* set the environment variable EXENV.  Then it adds a command

* to launch SHARE.EXE, placing it before the existing command

* to start Windows.  Finally, it backs up the original file

* and saves the edited file under its original name.

*

* If any of the calls to BatchAdd fails, the setup exits

* without saving changes to the batch file.

*

* Note: Before running this script, create a batch file

*       named ISExampl.bat in the root of drive C.  For

*       best effect, that file should include the following

*       lines:

*

*       PATH=C:\Windows

*       Win

*

\*-----------------------------------------------------------*/

#define EXAMPLE_BAT "C:\\ISEXAMPL.BAT"

#define EXAMPLE_BAK "ISEXAMPL.BAK"

    STRING szPath;

// Include Ifx.h for built-in InstallScript function prototypes.

#include "Ifx.h"

function OnBegin()

begin

    // Load the batch file to be edited.

    if (BatchFileLoad (EXAMPLE_BAT) < 0) then

        MessageBox ("Unable to load " + EXAMPLE_BAT+".", SEVERE);

        abort;

    endif;

    // Add a SET PATH command that appends the value of an existing

    // search path to C:\EXAPP\BIN.

    szPath = "C:\\EXAPP\\BIN;%PATH%";

    if (BatchAdd ("PATH", szPath, "PATH", AFTER) < 0) then

        MessageBox ("First call to BatchAdd failed", WARNING);

        abort;

    endif;

    // Add the line SET EXENV = C:\OTHERAPP\BIN.  If the

    // environment variable EXENV already exists in the batch

    // file, the last SET EXENV statement is replaced.

    szPath = "C:\\OTHERAPP\\BIN";

    if (BatchAdd ("EXENV", szPath, "EXENV", REPLACE) < 0) then

        MessageBox ("Second call to BatchAdd failed", WARNING);

        abort;

    endif;

    // Add the command SHARE.EXE before the command WIN.

    if (BatchAdd ("", "SHARE.EXE", "WIN", BEFORE | COMMAND) < 0) then

        MessageBox ("Third call to BatchAdd failed", WARNING);

        abort;

    endif;

    // Save the updated file; back up the original file.

    if (BatchFileSave(EXAMPLE_BAK) < 0) then

        MessageBox ("Unable to save " + EXAMPLE_BAK + ".", SEVERE);

    else

        MessageBox ("Batch file saved. Backup created.",INFORMATION);

    endif;

end;

The following example applies to:

Basic MSI Installations

Tip • To call this function in a Basic MSI setup, you must first create a custom action for the entry-point function, execute the custom action in a sequence or as the result of a dialog's control event, and then build the release.

/*-----------------------------------------------------------*\

*

* InstallShield Example Script

*

* Demonstrates the BatchAdd function.

*

* This example script adds three statements to a batch file.

* First, it adds a PATH statement.  Next, it adds a command to

* set the environment variable EXENV.  Then it adds a command

* to launch SHARE.EXE, placing it before the existing command

* to start Windows.  Finally, it backs up the original file

* and saves the edited file under its original name.

*

* If any of the calls to BatchAdd fails, the setup exits

* without saving changes to the batch file.

*

* Note: Before running this script, create a batch file

*       named ISExampl.bat in the root of drive C.  For

*       best effect, that file should include the following

*       lines:

*

*       PATH=C:\Windows

*       Win

*

\*-----------------------------------------------------------*/

#define EXAMPLE_BAT "C:\\ISEXAMPL.BAT"

#define EXAMPLE_BAK "ISEXAMPL.BAK"

// Include Ifx.h for built-in InstallScript function prototypes.

#include "Ifx.h"

export prototype ExFn_BatchAdd(HWND);

function ExFn_BatchAdd(hMSI)

    STRING szPath;

begin

    // Load the batch file to be edited.

    if (BatchFileLoad (EXAMPLE_BAT) < 0) then

        MessageBox ("Unable to load " + EXAMPLE_BAT+".", SEVERE);

        abort;

    endif;

    // Add a SET PATH command that appends the value of an existing

    // search path to C:\EXAPP\BIN.

    szPath = "C:\\EXAPP\\BIN;%PATH%";

    if (BatchAdd ("PATH", szPath, "PATH", AFTER) < 0) then

        MessageBox ("First call to BatchAdd failed", WARNING);

        abort;

    endif;

    // Add the line SET EXENV = C:\OTHERAPP\BIN.  If the

    // environment variable EXENV already exists in the batch

    // file, the last SET EXENV statement is replaced.

    szPath = "C:\\OTHERAPP\\BIN";

    if (BatchAdd ("EXENV", szPath, "EXENV", REPLACE) < 0) then

        MessageBox ("Second call to BatchAdd failed", WARNING);

        abort;

    endif;

    // Add the command SHARE.EXE before the command WIN.

    if (BatchAdd ("", "SHARE.EXE", "WIN", BEFORE | COMMAND) < 0) then

        MessageBox ("Third call to BatchAdd failed", WARNING);

        abort;

    endif;

    // Save the updated file; back up the original file.

    if (BatchFileSave(EXAMPLE_BAK) < 0) then

        MessageBox ("Unable to save " + EXAMPLE_BAK + ".", SEVERE);

    else

        MessageBox ("Batch file saved. Backup created.",INFORMATION);

    endif;

end;

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