MFC 如何做出像vs2008编辑器类视图的停靠面板？(有切割)

Question

如图红色区域是怎么做出来的？mfc

Answer 1

 
我试着做了一个 
1:class CTreeCtrlV1 : public CTreeCtrl
2:class CTreeCtrlV2 : public CTreeCtrl
3:class CTestPane : public CDockablePane
然后在CTestPane里定义三个对象
        CTreeCtrlV1 *m_TreeCtrlUp; //类视图 - 上面的TreeCtrl
        CWnd* m_btnTest;             // 分割线
CTreeCtrlV2 *m_TreeCtrlDown;//类试图 - 下面的TreeCtrl
在CTestPane的oncreate里
 m_TreeCtrlUp = new CTreeCtrlV1();
m_TreeCtrlUp->Create(WS_VISIBLE|WS_CHILD|TVS_LINESATROOT|TVS_HASLINES |TVS_HASBUTTONS ,CRect(0,0,0,0),this,9105);
m_TreeCtrlUp->ShowWindow(SW_SHOW); m_TreeCtrlDown = new CTreeCtrlV2();
m_TreeCtrlDown->Create(WS_VISIBLE|WS_CHILD|TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS,CRect(0,0,0,0),this,9106);
m_TreeCtrlDown->ShowWindow(SW_SHOW); m_btnTest = new CWnd();
m_btnTest->Create(afxGlobalData.RegisterWindowClass(_T("MYWnd")),_T(""),WS_CHILD|WS_VISIBLE,CRect(0,0,0,0),this,9107);
m_btnTest->ShowWindow(SW_SHOW);然后在CTestPane的PreTranslateMessage里 写了鼠标左键按下 鼠标移动 鼠标抬起的事件 可以达到差不多的效果 但是有个问题是当拖动分割线后 鼠标移出dockpanel以后就不能移动了。
PreTranslateMessage里的实现如下
if (pMsg->message == WM_LBUTTONDOWN && pMsg->hwnd == m_btnTest->m_hWnd)
{
m_bDown = true;
m_ptMouseDown = pMsg->pt;
ScreenToClient(&m_ptMouseDown);
}
else if(pMsg->message == WM_MOUSEMOVE)
{
if (m_bDown)
{
m_bMouse = true; m_ptMouseMove = pMsg->pt;
ScreenToClient(&m_ptMouseMove);
int nHeight = m_ptMouseMove.y - m_ptMouseDown.y;
m_ptMouseDown = m_ptMouseMove;
nUpTreeH += nHeight;
nDownTreeH -= nHeight;
CRect rect;
GetClientRect(rect);
int nCha = 0;;
if (nUpTreeH <= 0)
{
int temp = nUpTreeH;
nUpTreeH = 1;
nCha = nUpTreeH - temp;
nDownTreeH += nCha;
}
else if (nUpTreeH >= rect.Height() - 6)
{
nUpTreeH = rect.Height() - 6;
nDownTreeH = 1;
}
m_TreeCtrlUp->SetWindowPos(NULL,0,0,rect.Width(),nUpTreeH,SWP_NOACTIVATE|SWP_NOZORDER);
m_btnTest->SetWindowPos(NULL,0,nUpTreeH,rect.Width(),5,SWP_NOACTIVATE|SWP_NOZORDER);
m_TreeCtrlDown->SetWindowPos(NULL,0,nUpTreeH + 5 ,rect.Width(),nDownTreeH,SWP_NOACTIVATE|SWP_NOZORDER); Invalidate(TRUE);
UpdateWindow();
}
}
else if(pMsg->message == WM_LBUTTONUP)
{
if (m_bDown)
{
m_bDown = false;
Invalidate(TRUE);
UpdateWindow();
}
}
如何捕获鼠标在当前窗口外的鼠标移动事件呢？

Answer 2

鼠标 按下后 就 capturemouse ，然后无论鼠标在哪都可以捕获了

Answer 3

我在鼠标按下的时候 SetCapture();
然后在鼠标弹起的时候 ReleaseCapture();没有效果呢