LRESULT CWin::OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) { POINT pt; pt.x = GET_X_LPARAM(lParam); pt.y = GET_Y_LPARAM(lParam); ::ScreenToClient(m_hWnd, &pt); RECT rcClient; ::GetClientRect(*this, &rcClient); if( !::IsZoomed(*this) ) { RECT rcSizeBox = GetPaintMgr()->GetSizeBox(); if( pt.y < rcClient.top + rcSizeBox.top ) { if( pt.x < rcClient.left + rcSizeBox.left ) return HTTOPLEFT; if( pt.x > rcClient.right - rcSizeBox.right ) return HTTOPRIGHT; return HTTOP; } else if( pt.y > rcClient.bottom - rcSizeBox.bottom ) { if( pt.x < rcClient.left + rcSizeBox.left ) return HTBOTTOMLEFT; if( pt.x > rcClient.right - rcSizeBox.right ) return HTBOTTOMRIGHT; return HTBOTTOM; } if( pt.x < rcClient.left + rcSizeBox.left ) return HTLEFT; if( pt.x > rcClient.right - rcSizeBox.right ) return HTRIGHT; } RECT rcCaption = GetPaintMgr()->GetCaptionRect(); //modify by dfn.li 2013-7-12 21:09 RECT rcBottomCaption = GetPaintMgr()->GetBottomCaptionRect(); bool bCaption = false; if( pt.x >= rcClient.left + rcCaption.left && pt.x < rcClient.right - rcCaption.right \ && pt.y >= rcCaption.top && pt.y < rcCaption.bottom ) bCaption = true; bool bBottomCaption = false; if ( pt.x >= rcClient.left + rcBottomCaption.left && pt.x < rcClient.right - rcBottomCaption.right \ && pt.y >= rcClient.bottom - rcBottomCaption.bottom && pt.y < rcClient.bottom ) bBottomCaption = true; if( bCaption||bBottomCaption ) { CControlUI* pControl = static_cast<CControlUI*>(GetPaintMgr()->FindControl(pt)); if (pControl) { if (pControl->IsClass(CControlUI::GetClassName()) || pControl->IsClass(CChildLayoutUI::GetClassName()) || pControl->IsClass(CHorizontalLayoutUI::GetClassName())|| pControl->IsClass(CTabLayoutUI::GetClassName()) || pControl->IsClass(CTileLayoutUI::GetClassName()) || pControl->IsClass(CVerticalLayoutUI::GetClassName()) || pControl->IsClass(CTextUI::GetClassName()) || pControl->IsClass(CLabelUI::GetClassName())) { return HTCAPTION; } return HTCLIENT; } return HTCAPTION; } return HTCLIENT; }