duilib中Richedit如何支持TextChanged

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在duilib开发中,小伙伴会因为CEditUI的各种问题,而转为使用CRichEditUI来代替。但是CRichEditUI控件却不支持文字变化通知事件,下面通过简单几行代码让RichEdit支持文字变化事件。

在UIRichEdith.cpp文件中搜索::OnTxNotify,然后使用以下代码替换此函数:

void CRichEditUI::OnTxNotify(DWORD iNotify, void *pv)
{
    switch(iNotify)
    { 
    case EN_CHANGE:
        {
            GetManager()->SendNotify(this, DUI_MSGTYPE_TEXTCHANGED);
            break;
        }
    case EN_DROPFILES:   
    case EN_MSGFILTER:   
    case EN_OLEOPFAILED:   
    case EN_PROTECTED:   
    case EN_SAVECLIPBOARD:   
    case EN_SELCHANGE:   
    case EN_STOPNOUNDO:   
    case EN_LINK:   
    case EN_OBJECTPOSITIONS:   
    case EN_DRAGDROPDONE:   
        {
            if(pv) 
            {   
                LONG nId =  GetWindowLong(this->GetManager()->GetPaintWindow(), GWL_ID);   
                NMHDR  *phdr = (NMHDR *)pv;   
                phdr->hwndFrom = this->GetManager()->GetPaintWindow();   
                phdr->idFrom = nId;   
                phdr->code = iNotify;  

                if(SendMessage(this->GetManager()->GetPaintWindow(), WM_NOTIFY, (WPARAM) nId, (LPARAM) pv))   
                {   
                }   
            }    
        }
        break;
    }
}

好了,需要的小伙伴赶紧试试吧!

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