新人 关于MFC 中SDI弹出的对话框 获取VIEW指针的有关问题

// youkuView.cpp : implementation of the CYoukuView class
//

#include "stdafx.h"

#include "mytry.h"
#include "youkuDoc.h"
#include "youkuView.h"
#include "youku.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CYoukuView
mytry dig;
IMPLEMENT_DYNCREATE(CYoukuView, CView)

BEGIN_MESSAGE_MAP(CYoukuView, CView)
    //{{AFX_MSG_MAP(CYoukuView)
    ON_COMMAND(ID_MENUITEM32771, Onyouku)
    //}}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()

/////////////////////////////////////////////////////////////////////////////
// CYoukuView construction/destruction

CYoukuView::CYoukuView()
{
    // TODO: add construction code here

}

CYoukuView::~CYoukuView()
{
}

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

    return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CYoukuView drawing

void CYoukuView::OnDraw(CDC* pDC)
{
    CYoukuDoc* pDoc = GetDocument();
    ASSERT_VALID(pDoc);
    // TODO: add draw code for native data here

/*    CBrush brush;
    brush.CreateSolidBrush(RGB(dig.m_try,0,0));
    pDC->SelectObject(brush);
    CRect rect;
    GetClientRect(&rect);
    pDC->Rectangle(&rect);*/

}

/////////////////////////////////////////////////////////////////////////////
// CYoukuView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CYoukuView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CYoukuView message handlers

void CYoukuView::Onyouku() 
{
    // TODO: Add your command handler code here

    dig.DoModal();
    Invalidate();
}
void mytry::onchange()
{
    CFrameWnd* pmain = (CFrameWnd*)AfxGetApp()->m_pActiveWnd;//获得视图类指针
    CYoukuView *pdc = (CYoukuView *)pmain->GetActiveView();
    CBrush brush;
    CClientDC dc(pdc);
    brush.CreateSolidBrush(RGB(dig.m_try,0,0));
    dc.SelectObject(brush);
    CRect rect;
    GetClientRect(&rect);
    dc.Rectangle(&rect);
}

void mytry::OnButton1() 
{
    // TODO: Add your control notification handler code here
    SendMessage(MY_MESSAGE);
}