Multiple inheritance for a CListCtrl

[mddd]

I have an application that uses CListCtrls.

Requirement 1 is to have a list control that uses alternating colors for different rows
Requirement 2 is to be able to print the list control.

I've found classes on codeguru that fulfill the 2 requirements independently....but not a class that does both.

Say I have CColorListCtrl and CPrintListCtrl that provides the different functions.

Can I create a class CColorPrintListCtrl that inherits from both CColorListCtrl and CPrintListCtrl ? Will multiple inheritance work here?

Thanks,
Mdd

[Ejaz]

Step 1 is simple task. In your CListCtrl derive class (for e.g. the class that prints your clistctrl), You can do something like

void CMyListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
	LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)pNMHDR;

	int iRow = lplvcd->nmcd.dwItemSpec;

	switch(lplvcd->nmcd.dwDrawStage)
	{
		case CDDS_PREPAINT:
			*pResult = CDRF_NOTIFYSUBITEMDRAW; // CMT: ask for subitem notifications.
			break;
		case CDDS_ITEMPREPAINT:
			if (iRow %2 == 0) // for alternate row
			{
				// CMT: Initializes a CFont object with the specified characteristics. 
				SelectObject (lplvcd->nmcd.hdc, m_HeaderFont);

				lplvcd->clrText		= m_colorText;			
				lplvcd->clrTextBk	= m_colorBackground;

				*pResult = CDRF_NEWFONT;
			}
			break;
		default: // CMT: it wasn't a notification that was interesting to us.
			*pResult = CDRF_DODEFAULT;
	}
}

[panayotisk]

I think you should not use multiple inheritance with MFC.
TN016: Using C++ Multiple Inheritance with MFC
But see specifically this:

From MSDN
In order for the MFC message map system to work correctly, there are two additional requirements:
There must be only one CWnd-derived base class.
The CWnd-derived base class must be the first (or left-most) base class