Enables or disables best-fit mapping behavior when converting Unicode characters to ANSI characters.
The UnmanagedFunctionPointerAttribute.BestFitMapping field is true by default, which means that best-fit mapping behavior is enabled. If the field is false, best-fit mapping is disabled. Settings for this field override any level settings for the System.Runtime.InteropServices.BestFitMappingAttribute attribute.
For more information, see DllImportAttribute.BestFitMapping.