ConfigDelete Example

InstallShield 2022 » InstallScript Language Reference

Note: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 ConfigDelete function.

*

* This example script deletes statements from a configuration

* file.  First, it calls ConfigFileLoad to load the file for

* editing.  Next, it deletes lines that contain a FILES

* statement.  Finally, it backs up the original file and

* saves the edited file.

*

* Note: Before running this script, create a configuration

*       file named ISExampl.sys in the root of drive C.

*       That file should include at least one FILES statement.

*

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

 

#define TARGET_CONFIG  "C:\\ISExampl.sys"

#define BACKUP_CONFIG  "ISExampl.bak"

 

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

#include "Ifx.h"

 

export prototype ExFn_ConfigDelete(HWND);

 

function ExFn_ConfigDelete(hMSI)

    STRING szMsg;

begin

    

    // Load the target config file to be edited.

    if (ConfigFileLoad (TARGET_CONFIG) < 0) then

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

        abort;

    endif;

    

    // Remove all lines in the file that contain the key "FILES".

    if (ConfigDelete ("FILES") < 0) then

        MessageBox ("ConfigDelete failed.", SEVERE);

    else

        // Back up the original file and save the edited file.

        if ConfigFileSave (BACKUP_CONFIG) < 0 then

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

        else

            MessageBox (TARGET_CONFIG + " was updated and saved.",INFORMATION);

        endif;

    endif;

 

end;