怎么易语言没有AccessibleObjectFromWindow的例程

pokliop

dsafdasfdasfdsafdsfdsfa

kuangke2012

正研究

guaiguai

不清楚  菜鸟路过

╬部落酋长o

宇智波·晓易 发表于 2014-9-12 07:58
楼主可以加我，我们一起玩玩哦。

恩，加你了

萧阳天

见实例: 取Word窗口对象AccessibleObjectFromWindow.rar (7.49 KB, 下载次数: 427)

2014-9-12 10:45 上传

点击文件名下载附件

宇智波·晓易

楼主可以加我，我们一起玩玩哦。

寻找星空

半夏时光 发表于 2014-9-12 01:45
简单的说，干嘛用的

1.检索与指定窗口相关联的对象接口地址2.可用于遍历DirectUI窗口控件
3.其他相关类的函数可勾取、拦截、自绘等句柄、ID、类等相关信息


AccessibleObjectFromWindow function

Retrieves the address of the specified interface for the object associated with the specified window.

Syntax[url=]C++[/url]



STDAPI AccessibleObjectFromWindow(  _In_   HWND hwnd,  _In_   DWORD dwObjectID,  _In_   REFIID riid,  _Out_  void **ppvObject);



Parametershwnd [in]

Type: HWND

Specifies the handle of a window for which an object is to be retrieved. To retrieve an interface pointer to the cursor or caret object, specify NULL and use the appropriate object ID in dwObjectID.

dwObjectID [in]

Type: DWORD

Specifies the object ID. This value is one of the standard object identifier constants or a custom object ID such as OBJID_NATIVEOM, which is the object ID for the Office native object model. For more information about OBJID_NATIVEOM, see the Remarks section in this topic.

riid [in]

Type: REFIID

Specifies the reference identifier of the requested interface. This value is either IID_IAccessible or IID_IDispatch, but it can also be IID_IUnknown, or the IID of any interface that the object is expected to support.

ppvObject [out]

Type: void**

Address of a pointer variable that receives the address of the specified interface.

Return value

Type: STDAPI

If successful, returns S_OK.

If not successful, returns one of the following or another standard COM error code.

Return code	Description
E_INVALIDARG	An argument is not valid.
E_NOINTERFACE	The requested interface is not supported.

Remarks

Clients call this function to retrieve the address of an object's IAccessible, IDispatch, IEnumVARIANT,IUnknown, or other supported interface pointer.

As with other IAccessible methods and functions, clients might receive errors for IAccessible interface pointers because of a user action. For more information, see Receiving Errors for IAccessible Interface Pointers.

Clients use this function to obtain access to the Microsoft Office 2000 native object model. The native object model provides clients with accessibility information about an Office application's document or client area that is not exposed by Microsoft Active Accessibility.

To obtain an IDispatch interface pointer to a class supported by the native object model, specifyOBJID_NATIVEOM in dwObjectID. When using this object identifier, the hwnd parameter must match the following window class types.

Office application	Window class	IDispatch pointer to
Word	_WwG	Window
Excel	EXCEL7	Window
PowerPoint	paneClassDC	DocumentWindow
Command Bars	MsoCommandBar	CommandBar

Note that the above window classes correspond to the innermost document window or pane window. For more information about the Office object model, see the Microsoft Office 2000/Visual Basic Programmer's Guide.

Requirements

Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Redistributable	Active Accessibility 1.3 RDK on Windows NT 4.0 with SP6 and later and Windows 95
Header	Oleacc.h
Library	Oleacc.lib
DLL	Oleacc.dll

See alsoIAccessibleAccessibleObjectFromEventAccessibleObjectFromPointIDispatch

寻找星空

The WindowFromAccessibleObject function retrieves the window handle that corresponds to a given instance of an IAccessible interface.

STDAPI WindowFromAccessibleObject(  IAccessible* pacc,  HWND* phwnd);


Parameterspacc[in] Pointer to the IAccessible interface whose corresponding window handle will be retrieved. This parameter must not be NULL.phwnd[out] Address of a variable that receives a handle to the window containing the object specified in pacc. If this value is NULL after the call, the object was not contained within a window. (For example, the mouse pointer is not contained within a window.)Return Values

If successful, returns S_OK.

If not successful, returns the following or another standard COM error code.

Error	Description
E_INVALIDARG	An argument is invalid.

Requirements

  Windows NT/2000/XP/Server 2003: Included in Windows 2000 and later.
  Windows 95/98/Me: Included in Windows 98 and later.
  Redistributable: Requires Active Accessibility 1.3 RDK on Windows NT 4.0 SP6 and Windows 95.
  Header: Declared in Oleacc.h.
  Library: Use Oleacc.lib.