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CWnd::SetWindowContextHelpId

Call this member function to associate a help context identifier with the specified window.

BOOL SetWindowContextHelpId( 
   DWORD dwContextHelpId  
);

dwContextHelpId

The help context identifier.

Nonzero if the function is successful; otherwise 0.

If a child window does not have a help context identifier, it inherits the identifier of its parent window. Likewise, if an owned window does not have a help context identifier, it inherits the identifier of its owner window. This inheritance of help context identifiers allows an application to set just one identifier for a dialog box and all of its controls.

// The following code fragment is from CMyDlg::OnInitDialog 
// CMyDlg is derived from CDialog. 

// Associate a help context id with the control. 
// IDC_TESTHELP_CONTROL is the id of the control 
// and HIDC_TESTHELP_CONTROL is its help context 
// id associated with the control.
CWnd* pWnd = GetDlgItem(IDC_TESTHELP_CONTROL);
pWnd->SetWindowContextHelpId(HIDC_TESTHELP_CONTROL);

Header: afxwin.h

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