MessageBox Example

InstallShield 2016 » InstallScript Language Reference

Project • This information applies to the following project types:

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 MessageBox function.

*

* This script displays three message boxes, each with a

* different message and icon.

*

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

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

#include "Ifx.h"

export prototype ExFn_MessageBox(HWND);

function ExFn_MessageBox(hMSI)

    STRING szMsg;

begin

    // Display a message box that shows the information icon.

    szMsg = "This will install Example Program.";

    MessageBox (szMsg, INFORMATION);

    // Display a message box that shows the warning icon.

    szMsg = "Installing this version will replace previous one.";

    MessageBox (szMsg, WARNING);

    // Display a message box that shows the severe icon.

    szMsg = "Cannot install this application on floppy drives.";

    MessageBox (szMsg, SEVERE);

end;

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