Called by the framework when the user changes the print preview mode.
afx_msg LRESULT OnPostPreviewFrame(
   WPARAM wParam,
   LPARAM lParam
);
Parameters
- [in] wParam 
 This parameter is not used.
- [in] lParam 
 TRUE when the frame is in print preview mode; FALSE when print preview mode is off.
Return Value
Always returns 0.
Requirements
Header: afxframewndex.h