Display a message box with OK - Canel, and on Cancel pressed exit the installation

[ChrisGue]

I use: AI 14.1.1 enterprise

I want to do this:
1. search for a Registry key
2. if it exists, show a message box with OK and Cancel (in the wizard dialog stage after the searches)
3. When Cancel pressed, exit the installation


Step 1. and 2. are not problem
To show the message box I use the custom action 'Display message box'
But I do not manage to exit the installation when cancel is pressed, as it seems the return value of the message box is ignored.

The message box shall be displayed when the installation is started with the parameter /qr, as well.


Or I can add an additional dialog before the 'license agreement' dialog, but this is not shown when the installation is started with the option /qr
If it is possible to show a step even with /qr I would prefer this.

(I tried to show a message box via a Vbscript and by an attached exe file, but the message box is never shown in 'Wizard Dialog stage', only when I move the according custom action to Install Execution state)

Thank you, Chris

[Catalin]

Hello Chris,

I am not quite sure how you are trying to achieve this, because you did not mention.

However, please note that the installation is not automatically aborted when the "Cancel" button is pressed on the message box.

If you want to do so, you can proceed as it follows:

- right after your messagebox custom action, add an "ErrorMessage" custom action

- set the appropriate message for the user and set its' condition to:

BTN_PRESSED = "IDCANCEL"

where BTN_PRESSED is the property that stores the result of the messagebox custom action.

I have created, for your reference, a sample project that implements the steps presented above. Please find it below:

Chris Sample Project.aip

(12.55 KiB) Downloaded 253 times

Hope this helps!

Best regards,
Catalin

[ChrisGue]

Thanks a lot. This is working fine now.

But how do I localize the texts displayed in the message/error boxes.
The context menu does not show the item 'Localization...'

[ChrisGue]

I have added a message box wiht english and one with german texts, and added a condition with SystemLanguageID <> "1031" / SystemLanguageID = "1031"

[Catalin]

Hello Chris,

Thank you for your followup on this!

I am glad to hear it works as expected now.

Best regards,
Catalin