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Use this function to get the current state of the per-module state flag, which affects the WinSxS behavior of MFC.
When the flag is set (which is the default) and a thread enters an MFC module (see AFX_MANAGE_STATE), the context of the module is activated.
If the flag is not set, the context of the module is not activated on entry.
The context of a module is determined from its manifest, usually embedded in module resources.