OverviewExamples
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number MSI.QueryFeatureState ( |
Calls the MsiQueryFeatureState function to get the installed state for a product feature.
(string) The "product code" of the product containing the feature. This string must be an identifier string enclosed in curly braces, for example: "{78B82B0B-9AD9-40C0-B994-F72C21B52723}".
(string) The feature whose installed state you want.
(number) The installed state of the feature represented by one of the following values:
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CONSTANT |
VALUE |
DESCRIPTION |
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INSTALLSTATE_INVALIDARG |
-2 |
An invalid parameter was passed to the function. |
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INSTALLSTATE_UNKNOWN |
-1 |
The product code or feature ID is unknown. |
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INSTALLSTATE_ADVERTISED |
1 |
The feature is advertised. |
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INSTALLSTATE_ABSENT |
2 |
The feature is not installed. |
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INSTALLSTATE_LOCAL |
3 |
The feature is installed locally. |
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INSTALLSTATE_SOURCE |
4 |
The feature is installed to run from source. |
If the action fails, nil is returned. You can use Application.GetLastError to determine whether this action failed, and why.
See also: Related Actions