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<font color="#800080">VC知识库（五）</font>
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<font color="#800080">www.vckbase.com</font>
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<big>Dialog中使用Toolbar</big>
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<small>闻怡洋 译 EMail: wyy_cq@188.net <a href="http://www.vchelp.com">http://www.vchelp.com</a></small>
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<p>
MFC中没有提供供对话框使用的工具条类，而我们时常需要开发以对话框为框架的程序。下面我使用简单的代码说明这种方法。
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step1:<br>
在资源编辑器中插入工具条资源，并为每个按钮创建ID。将它命名为IDC_TOOLBAR1
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step2:<br>
在对话框变量中添加一个工具条变量。<br>
CToolBar m_wndToolBar;</p>
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step3:<br>
在CDialog::OnInitDialog中添加如下代码：
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// 创建工具条并调入资源
if(!m_wndToolBar.Create(this) || !m_wndToolBar.LoadToolBar(IDR_TOOLBAR1))
{
TRACE0("Failed to Create Dialog Toolbar\n");
EndDialog(IDCANCEL);
}
CRect rcClientOld; // 久客户区RECT
CRect rcClientNew; // 加入TOOLBAR后的CLIENT RECT
GetClientRect(rcClientOld); //
// Called to reposition and resize control bars in the client area of a window
// The reposQuery FLAG does not really traw the Toolbar. It only does the calculations.
// And puts the new ClientRect values in rcClientNew so we can do the rest of the Math.
//重新计算RECT大小
RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,0,reposQuery,rcClientNew);
// All of the Child Windows (Controls) now need to be moved so the Tollbar does not cover them up.
//所有的子窗口将被移动，以免被TOOLBAR覆盖
// Offest to move all child controls after adding Tollbar
//计算移动的距离
CPoint ptOffset(rcClientNew.left-rcClientOld.left,
rcClientNew.top-rcClientOld.top);
CRect rcChild;
CWnd* pwndChild = GetWindow(GW_CHILD); //得到子窗口
while(pwndChild) // 处理所有子窗口
{//移动所有子窗口
pwndChild->GetWindowRect(rcChild);
ScreenToClient(rcChild);
rcChild.OffsetRect(ptOffset);
pwndChild->MoveWindow(rcChild,FALSE);
pwndChild = pwndChild->GetNextWindow();
}
CRect rcWindow;
GetWindowRect(rcWindow); // 得到对话框RECT
rcWindow.right += rcClientOld.Width() - rcClientNew.Width(); // 修改对话框尺寸
rcWindow.bottom += rcClientOld.Height() - rcClientNew.Height();
MoveWindow(rcWindow,FALSE); // Redraw Window
RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,0);</small></pre>
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