CoDisconnectObject - OLE Programmer's Reference

Custom Search

CoDisconnectObject

Disconnects all remote process connections being maintained on behalf of all the interface pointers on a specified object. Only the process that actually manages the object should call CoDisconnectObject.

STDAPI CoDisconnectObject(

IUnknown * pUnk,	//Points to the object
DWORD dwReserved	//Reserved for future use
);

Parameters
pUnk

Points to the object to be disconnected. This does not necessarily have to be an IUnknown pointer. It can be a pointer to any interface supported by the object, as long as the interface is derived from IUnknown.

dwReserved

Reserved for future use; must be zero.

Return Values
S_OK

Indicates all connections to remote processes were successfully deleted.

E_OUTOFMEMORY

Out of memory.

E_INVALIDARG

Indicates one or more arguments are invalid.

E_UNEXPECTED

Indicates an unexpected error occurred.

E_FAIL

Indicates an unspecified error occurred.

Comments
The CoDisconnectObject function is not used in the typical course of processing (clients of interfaces should use IUnknown::Release). The primary purpose of CoDisconnectObject is to give an application control over connections from other processes that were made to objects managed by the application. For example, suppose an OLE container loads an embedded object and then links are established between the embedded object and outside containers. If the container application wants to exit, it is not appropriate for these remote connections to keep the object active beyond the lifetime of its container. When the object's container closes, such links should be disconnected. To forcefully close any existing connection(s), the object's container can call CoDisconnectObject.

Before calling CoDisconnectObject, the container should first call IOleObject::Close for all OLE objects. The objects will send OnClose notifications to inform all clients of the impending closure.

Calling this function is a privileged operation, to be invoked only by the process in which the object is actually managed.

See Also
IOleObject::Close

Last news from Greatis Software

    Nostalgia .Net     .Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes. More »

Recommended software for developers

    Ultimate Pack     Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price. More »

    Form Designer .Net     Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro! More »

    Print Suite .Net     Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available More »

    Gradient Controls .Net     Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available More »

    Greatis iGrid     iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors. More »

All the contacts and projects

Dmitry Vasiliev (just.dmitry)

More Online Helps

Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages

greatis just4fun network