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Marshal.GetComObjectData Method

Retrieves data that is referenced by the specified key from the specified COM object.

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

static member GetComObjectData : 
        obj:Object * 
        key:Object -> Object

Parameters

obj
Type: System.Object

The COM object that contains the data that you want.

key
Type: System.Object

The key in the internal hash table of obj to retrieve the data from.

Return Value

Type: System.Object
The data represented by the key parameter in the internal hash table of the obj parameter.

ExceptionCondition
ArgumentNullException

obj is a null reference (Nothing in Visual Basic).

-or-

key is a null reference (Nothing in Visual Basic).

ArgumentException

obj is not a COM object.

-or-

obj is a Windows Runtime object.

All COM objects wrapped in a Runtime Callable Wrapper have an associated hash table, which GetComObjectData retrieves. Marshal.SetComObjectData adds data to the hash table. You should never have to call either method from your code.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

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