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IHttpContext::GetParentContext Method
The IHttpContextGetParentContext method retrieves a pointer to the parent context for the current context.
10/07/2016
99ef993a-b8a5-71d4-0223-f3d2acf489c8

IHttpContext::GetParentContext Method

Retrieves a pointer to the parent context for the current context.

Syntax

virtual IHttpContext* GetParentContext(  
   VOID  
) const = 0;

Parameters

This method takes no parameters.

Return Value

A pointer to an IHttpContext interface.

Remarks

The GetParentContext method retrieves a pointer to the IHttpContext interface for the parent context of the current request. For example, if an HTTP module creates a child context by using the CloneContext method, the GetParentContext method can help determine whether the module is processing on the parent context or on the child context.

Note

When the current context does not have a parent context, the GetParentContext method will return NULL.

Example

The following code example demonstrates how to use the GetParentContext method to create an HTTP module that retrieves the parent context for the request. The module compares the parent context with NULL and the current request context to determine whether the parent context is different than the current context. The module then returns a message to the Web client and exits.

[!code-cppIHttpContextGetParentContext#1]

Your module must export the RegisterModule function. You can export this function by creating a module definition (.def) file for your project, or you can compile the module by using the /EXPORT:RegisterModule switch. For more information, see Walkthrough: Creating a Request-Level HTTP Module By Using Native Code.

You can optionally compile the code by using the __stdcall (/Gz) calling convention instead of explicitly declaring the calling convention for each function.

Requirements

Type Description
Client - IIS 7.0 on [!INCLUDEwinvista]
- IIS 7.5 on Windows 7
- IIS 8.0 on Windows 8
- IIS 10.0 on Windows 10
Server - IIS 7.0 on [!INCLUDEwinsrv2008]
- IIS 7.5 on Windows Server 2008 R2
- IIS 8.0 on Windows Server 2012
- IIS 8.5 on Windows Server 2012 R2
- IIS 10.0 on Windows Server 2016
Product - IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0
- [!INCLUDEiisexp75], [!INCLUDEiisexp80], [!INCLUDEiisexp100]
Header Httpserv.h

See Also

IHttpContext Interface
IHttpContext::CloneContext Method
IHttpContext::GetRootContext Method