useregdllview.cpp

mfc的动态链接库的应用

// UseRegDllView.cpp : implementation of the CUseRegDllView class
//

#include "stdafx.h"
#include "UseRegDll.h"

#include "UseRegDllDoc.h"
#include "UseRegDllView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CUseRegDllView

IMPLEMENT_DYNCREATE(CUseRegDllView, CView)

BEGIN_MESSAGE_MAP(CUseRegDllView, CView)
	//{{AFX_MSG_MAP(CUseRegDllView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUseRegDllView construction/destruction

CUseRegDllView::CUseRegDllView()
{
	// TODO: add construction code here
	hdll=LoadLibrary("RegDll.dll");

}

CUseRegDllView::~CUseRegDllView()
{
}

BOOL CUseRegDllView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CUseRegDllView drawing

void CUseRegDllView::OnDraw(CDC* pDC)
{
	CUseRegDllDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	typedef double(*PROC1)(double,double,double);
	PROC1 proc=(PROC1)GetProcAddress(hdll,"AreaTriangle");
	double data=(*proc)(20.0,30.0,40.0);
	CString ch;
	ch.Format("AreaTriangle(20.0,30.0,40.0)=%f",data);
		pDC->TextOut(20,20,ch);
}

/////////////////////////////////////////////////////////////////////////////
// CUseRegDllView printing

BOOL CUseRegDllView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CUseRegDllView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CUseRegDllView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CUseRegDllView diagnostics

#ifdef _DEBUG
void CUseRegDllView::AssertValid() const
{
	CView::AssertValid();
}

void CUseRegDllView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CUseRegDllDoc* CUseRegDllView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CUseRegDllDoc)));
	return (CUseRegDllDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CUseRegDllView message handlers