Buffers Sample

Buffers Sample

This sample shows how to pass strings as In/Out parameters to unmanaged functions that expect a string (LPSTR) as a function parameter. Further, it shows how to use a string returned from an unmanaged method in the special case where the caller is not supposed to free memory allocated for the string.

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http://msdn.microsoft.com/en-us/library/x3txb6xc.aspx