virtual LONG InitFromFileHandler(WPARAM wParam, LPARAM lParam);
wParam
WPARAM data
ParamLPARAM data
This override corresponds to the WM_GX_INITFILE message. The WPARAM and LPARAM parameters that are passed in to this message are passed on to this method. This method posts the WM_GXINITIALUPDATE and the WM_GXINITIALUPDATEDONE messages to the Excel views. The later message is posted after the tab count is initialized and the Excel data is read in. This override is called when existing Excel files are opened.
CGXExcelChildFrame::InitNewHandler CGXExcelReadView::OnExcelFileInitialUpdate CGXExcelReadView::OnExcelFileInitialUpdateDone
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