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63 lines
990 B
C++
63 lines
990 B
C++
#include "stdafx.h"
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#include "SigmaDoc.h"
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#include "SigmaView.h"
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extern "C" __declspec(dllexport)
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int GeoSigma_Undo(CSigmaView * pView, HDC hdc)
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{
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if (pView == 0)
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return -1;
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if (pView->m_pDoc == 0)
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return -1;
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CDC * pDC = CDC::FromHandle(hdc);
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pView->SetScreenDC(pDC);
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return pView->m_pDoc->Undo();
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}
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/**
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* ·µ»Ø²Ù×÷ÀàÐÍ
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**/
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extern "C" __declspec(dllexport)
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int GeoSigma_Redo(CSigmaView * pView, HDC hdc)
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{
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if (pView == 0)
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return -1;
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if (pView->m_pDoc == 0)
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return -1;
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CDC * pDC = CDC::FromHandle(hdc);
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pView->SetScreenDC(pDC);
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return pView->m_pDoc->Redo();
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}
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extern "C" __declspec(dllexport)
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int GeoSigma_CanUndo(CSigmaView * pView)
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{
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if (pView == 0)
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return -1;
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if (pView->m_pDoc == 0)
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return -1;
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if (pView->m_pDoc->CanUndo())
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return 1;
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return -1;
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}
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extern "C" __declspec(dllexport)
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int GeoSigma_CanRedo(CSigmaView * pView)
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{
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if (pView == 0)
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return -1;
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if (pView->m_pDoc == 0)
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return -1;
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if (pView->m_pDoc->CanRedo())
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return 1;
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return -1;
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} |