|
CLSCTX
The CLSCTX enumeration constants specify the execution context for a class object.
Different pieces of code can be associated with one CLSID for use in different
execution contexts.
typedef enum tagCLSCTX
{
CLSCTX_INPROC_SERVER = 1,
CLSCTX_INPROC_HANDLER = 2,
CLSCTX_LOCAL_SERVER = 4
} CLSCTX;
Elements
CLSCTX_INPROC_SERVER
The code that creates and manages objects of this class runs in the same
process as the caller of the function specifying the class context.
CLSCTX_INPROC_HANDLER
The code that manages objects of this class is an in-process handler. This is
a DLL that runs in the client process and implements client-side structures of
this class when instances of the class are accessed remotely.
CLSCTX_LOCAL_SERVER
The EXE code that creates and manages objects of this class is loaded in a
separate process space (runs on same machine but in a different process).
To indicate that multiple contexts are acceptable, you can string multiple
values together with boolean ORs. The contexts are tried in the order in which
they are listed.
The following table shows the use and reasons for CLSCTX values in calls to CoGetClassObject, which is used in the implementation of other OLE functions:
Function Called
| Context Flag Used
| OleLoad
| CLSCTX_INPROC_HANDLER | CLSCTX_INPROC_SERVER
Putting an OLE object into the loaded state requires in-process access; but,
it doesn't matter if all of the object's function is presently available.
| IRunnableObject::Run
| CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER
Running an OLE object requires connecting to the full code of the object
wherever it is located.
| CoUnMarshalInterface
| CLSCTX_INPROC_HANDLER
Unmarshalling needs the form of the class designed for remote access.
|
See Also
CoCreateInstance, CoGetClassObject, CoRegisterClassObject
| 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 projectsDmitry Vasiliev (just.dmitry)
Related LinksSoftware for Visual Studio .NET developers
Software for Delphi and C++ Builder developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET 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
|
