C / C++ / MFC

void AssignValue(ClassName* ptrValue)
  {
    ClassName& localObject = *ptrValue;// Here local object is created with same members of ptrValue
    obj1 = localObject; // here = operator will work, and copy all members to your new instance obj1.
  }

const ClassName& localObject = *ptrValue;

obj = *ptrValue;

class foo {
int val;
public:
   foo(int v) : val(v) {}
   int get() const { return val;}
};
class ABC {
   foo obj1;
public:
   void AssignValue(foo* ptr) {
      obj1 = *ptr;
   }
};

obj1 = *ptrValue;

void AssignValue(ClassName* ptrValue)
{
  obj1 = *ptrValue; // here obj1 value gets a copy of the object pointed by ptrValue.
}

BOOL CCoolMenuManager::OnMeasureItem(LPMEASUREITEMSTRUCT lpms)
{
	ASSERT(lpms);
	CMyItemData* pmd = (CMyItemData*)lpms->itemData;
	ASSERT(pmd);
	if (lpms->CtlType != ODT_MENU || !pmd->IsMyItemData())
		return FALSE; // not handled by me

	if (pmd->fType & MFT_SEPARATOR) {
		// separator: use half system height and zero width
		lpms->itemHeight = GetSystemMetrics(SM_CYMENU)>>1;
		lpms->itemWidth  = 0;

	} else {

		// compute size of text: use DrawText with DT_CALCRECT

		CWindowDC dc(NULL);	// screen DC--I won't actually draw on it
		CRect rcText(0,0,0,0);
		CFont* pOldFont = dc.SelectObject(GetMenuFont());
		dc.DrawText(pmd->text, rcText, DT_MYSTANDARD|DT_CALCRECT);
		dc.SelectObject(pOldFont);

		// height of item is just height of a standard menu item
		lpms->itemHeight= max(GetSystemMetrics(SM_CYMENU), rcText.Height());

		// width is width of text plus a bunch of stuff
		int cx = rcText.Width();	// text width 
		cx += CXTEXTMARGIN<<1;		// L/R margin for readability
		cx += CXGAP;					// space between button and menu text
		cx += m_szButton.cx<<1;		// button width (L=button; R=empty margin)

		// whatever value I return in lpms->itemWidth, Windows will add the
		// width of a menu checkmark, so I must subtract to defeat Windows. Argh.
		//
		cx -= GetSystemMetrics(SM_CXMENUCHECK)-1;
		lpms->itemWidth = cx;		// done deal

		CMTRACE(_T("OnMeasureItem for '%s':\tw=%d h=%d\n"), (LPCTSTR)pmd->text,
			lpms->itemWidth, lpms->itemHeight);
	}
	return TRUE; // handled
}

Andrew Hoole wrote:

...but I can't get a DLLRegisterServer failed 0x80020009 error when I try to register the cfx4032.ocx and sfxbar.dll using regsvr32.