GetDiskSpaceEx Example

InstallShield 2020 » 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 GetDiskSpaceEx function.

*

* This script gets a fully qualified path from the end user.

* It then extracts the drive designation from the path, gets

* the amount of free space on that drive, and displays the

* amount of free space in a message box.

*

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

 

STRING   szPath;

 

   INT      iResult;      

 

  

 

#include "ifx.h"

 

program

 

   // Prompt for a target path.

 

    szPath = PROGRAMFILES;

    iResult = SdAskDestPath

    ("Select Folder\nSelect the folder to check for available disk space.", " ", szPath, 0);

    

    if (iResult < 0) then

        MessageBox("Unable to display dialog.", SEVERE);

        endif;

 

   // Get the amount of free disk space (in kilobytes) for the specified path.

    

    iResult = GetDiskSpaceEx(szPath, KBYTES);

    

    if (iResult < 0) then

        MessageBox("Unable to get available disk space.", SEVERE);

        endif;

      

    // Display the amount of space available.

    

        SprintfBox(INFORMATION, "Space Available", "%d KB available on %s.", iResult, szPath);

 

endprogram