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Marshal.GetMethodInfoForComSlot Method

Retrieves MethodInfo for the specified virtual function table (VTBL) slot.

Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)

public static MemberInfo GetMethodInfoForComSlot (
	Type t,
	int slot,
	ref ComMemberType memberType
)
public static MemberInfo GetMethodInfoForComSlot (
	Type t, 
	int slot, 
	/** @ref */ ComMemberType memberType
)
Not applicable.

Parameters

t

The type for which the MethodInfo is to be retrieved.

slot

The VTBL slot.

memberType

On successful return, the type of the member. This is one of the ComMemberType enumeration members.

Return Value

The MemberInfo that represents the member at the specified VTBL (also called v-table) slot.

Exception typeCondition

ArgumentException

t is not visible from COM.

The zero-based slot number returned by this method accounts for three IUnknown and possibly four IDispatch methods, making the value of the first available slot either 3 or 7. GetMethodInfoForComSlot provides the opposite functionality of Marshal.GetComSlotForMethodInfo. You can use Marshal.GetEndComSlot and Marshal.GetStartComSlot in conjunction with GetMethodInfoForComSlot to pass slots within a specified range.

The memberType parameter is only important on return. It contains the type of the COM member that corresponds to the returned MemberInfo : a regular method or a property accessor (get, set, or other).

NoteNote:

This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. If your code can be called from partially trusted code, do not pass user input to Marshal class methods without validation. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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