The WiX toolset "wcautil.lib" has helper functions that ensure that user cancel isn't "swallowed" by a CustomAction. You might be surprised at some of the functions that can return user cancel.
-----Original Message----- From: Richard [mailto:legal...@xmission.com] Sent: Monday, January 05, 2009 12:22 To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] Disable cancel button on ProgressDlg during CustomAction execution In article <bay105-w3905902fd0a20f28ffd12e84...@phx.gbl>, sujanakar reddy <sujanakar_re...@hotmail.com> writes: > When the user clicks Cancel button during CustomAction execution, the insta= > llation is not getting rollback and the product is installed successfully. Wouldn't you rather that the Cancel button worked properly instead of disabling it? Chances are, the reason your cancel button is not cancelling your installation is that your custom action is calling MsiProcessMessage somewhere, probably because you're writing something to the log file. However, one aspect of MsiProcessMessage that eludes most people's awareness is that the return value of this function may indicate that the user clicked Cancel and your custom action should return a return value indicating cancel. (If your CA modifies the system, you will want a rollback action that undoes your custom action's changes to the system.) If you don't return cancel from your CA when the result of MsiProcessMessage indicates that the user clicked cancel, then the cancel action of the user is lost. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/> ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
