难题: ComboBox的DropList模式显示不正常(见源码)

Question

http://user1.7host.com/lisayan2003/src/mfcxpbutton.rar

Answer 1

I had download it, What's your problem.

Answer 2

我没做过，但试了一下，这样可以解决：void CQiuXpCombo::OnPaint() 
{
CPaintDC dc(this); // device context for painting
CRect rect;
GetWindowRect(rect);
ScreenToClient(rect);
rect.DeflateRect(1,1);
CRect rc = rect; rc.DeflateRect(1,1,18,1);
dc.IntersectClipRect(rc);
CWnd::DefWindowProc(WM_PAINT, WPARAM(dc.m_hDC), 0);//
CRgn rgn;
rgn.CreateRectRgn(rect.left,rect.top,rect.right,rect.bottom);
dc.SelectClipRgn(&rgn); rect.left = rect.right - 18; // GetSystemMetrics(SM_CXVSCROLL);
rect.top = rect.bottom - 18; // GetSystemMetrics(SM_CXVSCROLL); CRect rectControl;
rectControl.left = rect.left + m_iOffset;
rectControl.right = rect.right + m_iOffset;
rectControl.top = rect.top + m_iOffset;
rectControl.bottom = rect.bottom + m_iOffset;
dc.DrawFrameControl(rectControl, DFC_SCROLL, DFCS_SCROLLDOWN);//画右侧按钮 dc.Draw3dRect(rect, RGB(0,0,255), RGB(0,0,255));//画右侧按钮外框
}

Answer 3

谢谢 hnyyy(前进) .
问题解决了.