How to add ATL control containment support to any window in Visual C++| Article ID | : | 192560 | | Last Review | : | September 2, 2005 | | Revision | : | 3.0 |
This article was previously published under Q192560 SUMMARY This article explains how to add Active Template Library
(ATL) generic control containment capability to any window, so that the window
can host ActiveX controls. The control containment support conforms to the OCX
96 specification and supports windowless activation and flicker-free drawing. MORE INFORMATION To add control containment, follow these steps:
| 1. | Add the following header files and pragma directives to
your code. If you want to link to the containment code in Atl.dll, add the
following code:
// AtlAxWinInit is implemented in Atl.dll
#pragma comment(lib, "atl.lib")
#include <atldef.h>
#define _ATL_DLL_IMPL
#include <atliface.h>
244955 (http://support.microsoft.com/kb/244955/)
ATL projects built for MinDependency need Atl.dll if the projects use ATL control containment code in Visual C++ 6.0
| | 2. | Add the following code to the application initialization
code, for example in the beginning of WinMain():
//Initialize ATL control containment code.
AtlAxWinInit();
| | 3. | Create the ActiveX controls: use the WIN32 CreateWindow() function, specify "AtlAxWin" as the class name, and then specify
either a GUID, a ProgID, or an URL as the title. For example:
// Create the Calendar control specifying the ProgID.
// Make sure that the module handle you pass to CreateWindow is the
// same module handle where AtlAxWinInit() was called from.
HWND hWnd = ::CreateWindow("AtlAxWin", "MSCAL.Calendar",
WS_CHILD|WS_VISIBLE, 10, 10, 500, 300, hParent, NULL,
::GetModuleHandle(NULL), NULL);
// Same as above, except CLSID is specified instead of ProgID.
// Corresponds to ProgID "MSCAL.Calendar.7"
HWND hWnd = ::CreateWindow("AtlAxWin",
"{8E27C92B-1264-101C-8A2F-040224009C02}",
WS_CHILD|WS_VISIBLE, 10, 10, 500, 300, hParent, NULL,
::GetModuleHandle(NULL), NULL);
// Creates the Web Browser control and navigates to the
// specified web page.
HWND hWnd = ::CreateWindow("AtlAxWin", "http://www.microsoft.com",
WS_CHILD|WS_VISIBLE, 10, 10, 500, 300, hParent, NULL,
::GetModuleHandle(NULL), NULL);
// Creates an instance of an dynamic HTML document.
HWND hWnd = ::CreateWindow("AtlAxWin", "mshtml:<H1>Hello World</H1>",
WS_CHILD|WS_VISIBLE, 10, 10, 500, 300, hParent, NULL,
::GetModuleHandle(NULL), NULL);
| | 4. | If you added _Module.Init(), add the following code in application termination code (for
example, in WinMain(), after the message loop):
_Module.Term()
|
You can get the IUnknown* of the control via AtlAxGetControl(). To get the IUnknown* of the container, use AtlAxGetHost(). The HWND returned from CreateWindow() for the control is passed as the first parameter in both
functions.
APPLIES TO| • | Microsoft ActiveX Template Library 3.0, when used with: | | | | Microsoft Visual C++ 6.0 Enterprise Edition | | | | Microsoft Visual C++ 6.0 Professional Edition | | | | Microsoft Visual C++, 32-bit Learning Edition 6.0 |
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