CComboUI bug修复

 duilib CComboUI  有时鼠标拖动不准   by lssaint

   次bug修复比较简单，但比较难找到原因先贴源码：

   在 CComboWnd中找到HandleMessage方法。

将

if( uMsg == WM_KEYDOWN ) {
        switch( wParam ) {
        case VK_ESCAPE:
            m_pOwner->SelectItem(m_iOldSel, true);
            EnsureVisible(m_iOldSel);
            // FALL THROUGH...
        case VK_RETURN:
            PostMessage(WM_KILLFOCUS);
            break;
        default:
            TEventUI event;
            event.Type = UIEVENT_KEYDOWN;
            event.chKey = (TCHAR)wParam;
            m_pOwner->DoEvent(event);
            EnsureVisible(m_pOwner->GetCurSel());
            return 0;
        }
    }

修改为

if( uMsg == WM_KEYDOWN ) {
        switch( wParam ) {
        case VK_ESCAPE:
            m_pOwner->SelectItem(m_iOldSel, true);
            EnsureVisible(m_iOldSel);
            // FALL THROUGH...
        case VK_RETURN:
            PostMessage(WM_KILLFOCUS);
            break;
        default:
            TEventUI event;
            event.Type = UIEVENT_KEYDOWN;
            event.chKey = (TCHAR)wParam;
            m_pOwner->DoEvent(event);
	    if(wParam!=17)     //修改处
            EnsureVisible(m_pOwner->GetCurSel());
            return 0;
        }
    }

   以下部分为转载 http://blog.csdn.net/zhuhongshu/article/details/43484589

  duilib 修复combo控件打开下拉菜单后不会自动定位到上次选择的位置上的bug  by  Redrain  

  1、给CComboWnd类继承INotifyUI接口

class CComboWnd : public CWindowWnd,public INotifyUI

   2、在WM_CREATE消息里，把CComboWnd添加到消息队列：

m_pm.AddNotifier(this);

   3、为CComboWnd类添加 void Notify(TNotifyUI& msg) ; 成员函数

void CComboWnd::Notify(TNotifyUI& msg)  
{  
    if (msg.sType == _T("windowinit"))  
    {  
        EnsureVisible(m_iOldSel);  
    }  
}