IQuickActivateImpl Class
This class combines containers' control initialization into a single call.
Important
This class and its members cannot be used in applications that execute in the Windows Runtime.
Syntax
template <class T>
class ATL_NO_VTABLE IQuickActivateImpl : public IQuickActivate
Parameters
T
Your class, derived from IQuickActivateImpl.
Members
Public Methods
| Name | Description |
|---|---|
| IQuickActivateImpl::GetContentExtent | Retrieves the current display size for a running control. |
| IQuickActivateImpl::QuickActivate | Performs quick initialization of controls being loaded. |
| IQuickActivateImpl::SetContentExtent | Informs the control of how much display space the container has assigned to it. |
Remarks
The IQuickActivate interface helps containers avoid delays when loading controls by combining initialization in a single call. The QuickActivate method allows the container to pass a pointer to a QACONTAINER structure that holds pointers to all the interfaces the control needs. On return, the control passes back a pointer to a QACONTROL structure that holds pointers to its own interfaces, which are used by the container. Class IQuickActivateImpl provides a default implementation of IQuickActivate and implements IUnknown by sending information to the dump device in debug builds.
Related Articles ATL Tutorial, Creating an ATL Project
Inheritance Hierarchy
IQuickActivate
IQuickActivateImpl
Requirements
Header: atlctl.h
IQuickActivateImpl::GetContentExtent
Retrieves the current display size for a running control.
STDMETHOD(GetContentExtent)(LPSIZEL pSize);
Remarks
The size is for a full rendering of the control and is specified in HIMETRIC units.
See IQuickActivate::GetContentExtent in the Windows SDK.
IQuickActivateImpl::QuickActivate
Performs quick initialization of controls being loaded.
STDMETHOD(QuickActivate)(
QACONTAINER* pQACont,
QACONTROL* pQACtrl);
Remarks
The structure contains pointers to interfaces needed by the control and the values of some ambient properties. Upon return, the control passes a pointer to a QACONTROL structure that contains pointers to its own interfaces that the container requires, and additional status information.
See IQuickActivate::QuickActivate in the Windows SDK.
IQuickActivateImpl::SetContentExtent
Informs the control of how much display space the container has assigned to it.
STDMETHOD(SetContentExtent)(LPSIZEL pSize);
Remarks
The size is specified in HIMETRIC units.
See IQuickActivate::SetContentExtent in the Windows SDK.