如何实现在视图中拖动按钮？？

Question

在视图中显示了按钮 想自由的用鼠标拖动它们

Answer 1

void CAsDlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
if(::ChildWindowFromPoint(GetSafeHwnd(),point)==m_button1.m_hWnd)
{        //判断鼠标是否在按钮1上,m_button1为控件变量
m_bLButtonDown=TRUE;
}
//m_bLButtonDown=TRUE;
CDialog::OnLButtonDown(nFlags, point);
}void CAsDlg::OnMouseMove(UINT nFlags, CPoint point) 
{
if(m_bLButtonDown)   //在OnLButtonDown函数中，设置BOOL型变量m_bLButtonDown为TRUE
{
CRect rcTemp;
GetDlgItem(IDC_BUTTON1)->GetWindowRect(&rcTemp);
int b = rcTemp.bottom - rcTemp.top;
int r = rcTemp.right - rcTemp.left;
rcTemp.left = point.x;
rcTemp.top = point.y;
rcTemp.bottom = rcTemp.top + b;
rcTemp.right = rcTemp.left + r;
        GetDlgItem(IDC_BUTTON1)->MoveWindow(rcTemp,true); //移动按钮
}
}void CAsDlg::OnLButtonUp(UINT nFlags, CPoint point) 
{
m_bLButtonDown = false;
         CDialog::OnLButtonUp(nFlags, point);
}
试试看，我刚刚写的^_^
}