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Type::GetTypeHandle Method
Visual Studio 2010
Gets the handle for the Type of a specified object.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- o
- Type: System::Object
The object for which to get the type handle.
| Exception | Condition |
|---|---|
| ArgumentNullException | o is nullptr. |
The following example defines the class MyClass1, gets an instance of it, and retrieves the runtime handle of the object.
using namespace System; using namespace System::Reflection; public ref class MyClass1 { private: int x; public: int MyMethod() { return x; } }; int main() { MyClass1^ myClass1 = gcnew MyClass1; // Get the RuntimeTypeHandle from an object. RuntimeTypeHandle myRTHFromObject = Type::GetTypeHandle( myClass1 ); // Get the RuntimeTypeHandle from a type. RuntimeTypeHandle myRTHFromType = MyClass1::typeid->TypeHandle; Console::WriteLine( "\nmyRTHFromObject.Value: {0}", myRTHFromObject.Value ); Console::WriteLine( "myRTHFromObject.GetType(): {0}", myRTHFromObject.GetType() ); Console::WriteLine( "Get the type back from the handle..." ); Console::WriteLine( "Type::GetTypeFromHandle(myRTHFromObject): {0}", Type::GetTypeFromHandle(myRTHFromObject) ); Console::WriteLine( "\nmyRTHFromObject.Equals(myRTHFromType): {0}", myRTHFromObject.Equals(myRTHFromType) ); Console::WriteLine( "\nmyRTHFromType.Value: {0}", myRTHFromType.Value ); Console::WriteLine( "myRTHFromType.GetType(): {0}", myRTHFromType.GetType() ); Console::WriteLine( "Get the type back from the handle..." ); Console::WriteLine( "Type::GetTypeFromHandle(myRTHFromType): {0}", Type::GetTypeFromHandle(myRTHFromType) ); } /* This code example produces output similar to the following: myRTHFromObject.Value: 3295832 myRTHFromObject.GetType(): System.RuntimeTypeHandle Get the type back from the handle... Type::GetTypeFromHandle(myRTHFromObject): MyClass1 myRTHFromObject.Equals(myRTHFromType): True myRTHFromType.Value: 3295832 myRTHFromType.GetType(): System.RuntimeTypeHandle Get the type back from the handle... Type::GetTypeFromHandle(myRTHFromType): MyClass1 */
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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