DWORD dwSel = pmyEdit->GetSel();
pmyEdit->SetSel(HIWORD(dwSel), -1);void SetSel( DWORD dwSelection, BOOL bNoScroll = FALSE );Specifies the starting position in the low-order word and the ending position in the high-order word. If the low-order word is 0 and the high-order word is –1, all the text in the edit control is selected. If the low-order word is –1, any current selection is removed.
pmyEdit->SetSel(HIWORD(dwSel), -1);void SetSel( DWORD dwSelection, BOOL bNoScroll = FALSE );Specifies the starting position in the low-order word and the ending position in the high-order word. If the low-order word is 0 and the high-order word is –1, all the text in the edit control is selected. If the low-order word is –1, any current selection is removed.
m_edit_data.ReplaceSel("要修改的地方“,FALSE);