Class wizard

Class wizard

• SanthaMind

  I still get the following errors in my Begin Message Map for the parent Dialog.

  : error C2440: 'static_cast' : cannot convert from 'void (__thiscall CPDUTSDlg::* )(WPARAM,LPARAM)' to 'LRESULT (__thiscall CWnd::* )(WPARAM,LPARAM)'

  None of the functions with this name in scope match the target type

  ========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ==========

  Please let me know if more information is needed.

  
  

• Izhido_

  Thanks,

  I don't think I would have ever got this one.

  
  

• sl0140

  You'd have to type the macro and the corresponding function declaration/definition into the cpp/h files in manually. You could look at existing class wizard generated code or MSDN documentation to figure out the function prototypes for each type of ON_ macro.
  
  

• El Pato

  That's due to a breaking change in VC++ 2005. See my blog entry on this, which also gives a workaround/

  http://blog.voidnish.com/ p=91

  
  
  

• Troy Lundin

  Beside that Nishant already said.

  ON_MESSAGE macro is generally used to map user-defined message handlers.
  The handler function prototype is
  afx_msg LRESULT memberFxn(WPARAM, LPARAM);

  Here is an example:

  #define WM_APP_MYMESSAGE (WM_APP+1)
  // ...
  // MainFrm.h
  class CMainFrame : public CFrameWnd
  {
  // ...
    afx_msg LRESULT OnMyMessage(WPARAM wParam, LPARAM lParam);
    DECLARE_MESSAGE_MAP()
  };
  
  // MainFrm.cpp
  // ...
    //}}AFX_MSG_MAP
    ON_MESSAGE(WM_APP_MYMESSAGE, OnMyMessage)
  END_MESSAGE_MAP()
  // ...
  LRESULT CMainFrame::OnMyMessage(WPARAM wParam, LPARAM lParam)
  {
    // ...
    return (LRESULT)0;
  }

  
  
  
• Class wizard