C / C++ / MFC

rp_suman wrote:

Is it OK to get the handle inside PreCreateWindow() of SDI application?

void CMyView::OnInitialUpdate()
{	CScrollView::OnInitialUpdate();
	
	// DINA4 -> 210, 297 mm (Standard-printable-area 190, 280 mm), Ratio -> 5 Pixels = 1 mm
	CSize sizeTotal;
	sizeTotal.cx = 950;	sizeTotal.cy = 1400;
	SetScrollSizes(MM_TEXT, sizeTotal);

	// Connecting to the FPSDoc to get datas from it or to send datas to it
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// To have a relationship with the document in the whole programm
	extern CMyDoc* m_pDoc;
	m_pDoc = GetDocument ();
	// Update Description everytime a file is opened
	pDoc->UpdateDescription ();
	// Load standard cursor
	m_hCursor=AfxGetApp()->LoadStandardCursor(IDC_ARROW);

	return;
}


void CMyView::OnDraw(CDC* pDC)
{	PlaceElement ();
	//Other functions
	return;
}

void CMyView::PlaceElement ()
{	CMyDoc* pDoc = GetDocument ();
	ASSERT_VALID (pDoc);

// Declaration of what is needed
	CClientDC dc(this);			// The window to be drawn is this
	CDC dcNormMem;				// Selected drawing object
	dcNormMem.CreateCompatibleDC (&dc);	// Make it compatible and assign it to window
	CDC dcSelMem;				// Selected drawing object
	dcSelMem.CreateCompatibleDC (&dc);	// Make it compatible and assign it to window

	CString szTempText = "";		// Text for the name of the element
	CPoint cpTempPos, cpTempTextPos, cpScrollPoint = GetScrollPosition ();
	CBitmap bmNormIn, bmNormOut, bmNormReg, bmSel;
	BITMAP bmNormTemp, bmSelTemp;

// Placing ALL NON-SELECTED Elements.
	// Inputs
	for (int nIn = 0; nIn < pDoc->m_cMyListSet.GetCount (); nIn++)
	{	if (!pDoc->m_cMyListSet[nIn].m_bInSel)			// Only when NON-SELECTED
		{	if (bmNormIn.m_hObject != NULL)
				bmNormIn.DeleteObject ();		// Ensure not to have duplicities

			// Load and select the bitmap to be placed
			bmNormIn.LoadBitmap (IDB_NORMIN);
			bmNormIn.GetObject(sizeof(bmNormTemp), &bmNormTemp);	
			dcNormMem.SelectObject(&bmNormIn);

			// Correct Coordinates -> position on the screen
			cpTempPos.x = pDoc->m_cMyListSet[nIn].m_cpInCoord.x - cpScrollPoint.x;
			cpTempPos.y = pDoc->m_cMyListSet[nIn].m_cpInCoord.y - cpScrollPoint.y;
			
			// Place the bitmap on the correct position
			dc.BitBlt(cpTempPos.x, cpTempPos.y, bmNormTemp.bmWidth, 
						bmNormTemp.bmHeight, &dcNormMem, 0, 0, SRCCOPY);
	
			// Configuring and placing Label of the name
			szTempText = pDoc->m_cmlInputSet[nIn].m_szInName;
			dc.SetTextColor(RGB(0,0,0));
			dc.TextOut (cpTempPos.x, cpTempPos.y + SIGHEIGHT + 1, szTempText);
		}
	}
// More code for more Elements
}