[wix-users] Message Box in Wix Control & Custom Action

[Nir Bar]

The following code works for me in C++
You can try porting it to C#

    hRecord = ::MsiCreateRecord(1);
    ExitOnNullWithLastError(hRecord, hr, "Failed to create a warning record.");

    hr = WcaSetRecordString(hRecord, 0, szMsg);
    ExitOnFailure(hr, "Failed to set warning record message");

    WcaProcessMessage( INSTALLMESSAGE::INSTALLMESSAGE_WARNING, hRecord);






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Nir Bar, Independent WiX Expert. Creator of-
JetBA: WiX WPF Bootstrapper User Interface Framework

JetBA++: WiX Native Bootstrapper User Interface Framework