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Developer Forum » Software Engineering and Information Technology » Managed/Unmanaged code Interoperability » Duplicate 'DllImport' attribute

Duplicate 'DllImport' attribute Options · View
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hong
Posted: Friday, November 06, 2009 4:59:14 PM

Rank: Administration
Groups: Administration

Joined: 11/23/2008
Posts: 335
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Location: Australia
Duplicate 'DllImport' attribute

The error occurs when two 'DllImport' attributes are placed next to each other without specifying the staic extern function - the attributed method exposed by an unmanaged dynamic-link library (DLL) as a static entry point. For example,
Code:
        [DllImport("decrypt.dll", EntryPoint = "_GetSerialRegData"/*, ExactSpelling = false*/, SetLastError=true)]
        [DllImport("decrypt.dll", EntryPoint = "_GetActivationCode"/*, ExactSpelling = false*/, SetLastError = true)]
        static extern void GetSerialRegData(...);
        static extern void GetActivationCode(...);


So don't separate the attributed method:
Code:
        [DllImport("decrypt.dll", EntryPoint = "_GetSerialRegData"/*, ExactSpelling = false*/, SetLastError=true)]
        static extern void GetSerialRegData(...);
        [DllImport("decrypt.dll", EntryPoint = "_GetActivationCode"/*, ExactSpelling = false*/, SetLastError = true)]
        static extern void GetActivationCode(...);
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Posted: Friday, November 06, 2009 4:59:14 PM
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Developer Forum » Software Engineering and Information Technology » Managed/Unmanaged code Interoperability » Duplicate 'DllImport' attribute


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