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CWnd::accNavigate

  • 项目

Called by the framework to traverse to another user interface element within a container and if possible, retrieve the object.

virtual HRESULT accNavigate(
   long navDir,
   VARIANT varStart,
   VARIANT *pvarEndUpAt
);

Parameters

  • navDir
    Specifies the direction to navigate. See navDir in IAccessible::accNavigate in the Windows SDK.

  • varStart
    Specifies the starting object. See varStart in IAccessible::accNavigate in the Windows SDK.

  • pvarEndUpAt
    Receives information about the destination user interface object. See pvarEnd in IAccessible::accNavigate in the Windows SDK.

Return Value

Returns S_OK on success, a COM error code on failure. See Return Values in IAccessible::accNavigate in the Windows SDK.

Remarks

This function is part of MFC's Active Accessibility support.

Override this function in your CWnd-derived class if you have nonwindowed user interface elements (other than windowless ActiveX controls, which MFC handles).

For more information, see IAccessible::accNavigate in the Windows SDK.

Requirements

Header: afxwin.h

See Also

Reference

CWnd Class

Hierarchy Chart

CWnd::accSelect

Concepts

CWnd Members