MSDN Library
Collapse the table of content
Expand the table of content

CWnd::accHitTest

Called by the framework to retrieve the child element or child object at a given point on the screen.


virtual HRESULT accHitTest(
   long xLeft,
   long yTop,
   VARIANT *pvarChild
);

xLeft

X-coordinate of the point to be hit tested (in screen units).

yTop

Y-coordinate of the point to be hit tested (in screen units).

pvarChild

Receives information identifying the object at the point specified by xLeft and yTop. See pvarID in IAccessible::accHitTest in the Windows SDK.

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

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, seeIAccessible::accHitTest in the Windows SDK.

Header: afxwin.h

Adiciones de comunidad

Mostrar:
© 2016 Microsoft