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Exchanges data between a member variable and the property value of an ActiveX control on an HTML page.
void DDX_DHtml_AxControl( 
   CDataExchange* pDX, 
   LPCTSTR szId, 
   DISPID dispid, 
   VARIANT& var  
); 
void DDX_DHtml_AxControl( 
   CDataExchange* pDX, 
   LPCTSTR szId, 
   LPCTSTR szPropName, 
   VARIANT& var  
);
Parameters
- pDX 
 A pointer to a CDataExchange object.
- szId 
 The value of the object tag's ID parameter in the HTML source for the ActiveX control.
- dispid 
 The dispatch ID of the property with which you want to exchange data.
- szPropName 
 The name of the property.
- var 
 The data member, of type VARIANT, COleVariant, or CComVariant, that holds the value exchanged with the ActiveX control property.
Example
// COleVariant m_varSliderValue;
DDX_DHtml_AxControl(pDX, _T("slider1"), 0x0b /* Value */, m_varSliderValue );
Requirements
Header: afxdhtml.h