返回控件视区窗口, 为空取当前句柄
static CWnd* GetMxDrawView(MXDRAWOCXHANDLE handle = NULL);
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参数 |
说明 |
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MXDRAWOCXHANDLE handle = NULL |
控件名柄 |
返回控件视区窗口
很多时候需要控件视区窗口指针，比如下面代码是得到控件的视区窗口，然后再得到视区的显示范围 例如:
CWnd* pWnd = MxDraw::GetMxDrawView(m_hOcx);
ASSERT(pWnd != NULL);
CRect rect;
pWnd->GetClientRect(&rect);
CPoint pt = rect.BottomRight();
//ptmin,ptmax就是显示的文档范围
McGePoint3d ptmin = MxDraw::ViewToDocCoord(m_hDrawOcx,pt);
pt = rect.TopLeft();
McGePoint3d ptmax = MxDraw::ViewToDocCoord(m_hDrawOcx,pt);