Custom draw is mot a common control; it is a service that many common controls provide. The custom draw service allows an application greater flexibility in customizing a control’s appearance. Your application can harness custom draw notification to easily change the font used to display items or manually draw an item without having to do a full owner draw. The following is an example for tree-view control.

Example

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// .h
afx_msg void OnNMCustomdraw(NMHDR* pNMHDR, LRESULT* pResult);

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// .cpp
ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, &OnNMCustomdraw)

void OnNMCustomdraw(NMHDR* pNMHDR, LRESULT* pResult){
	LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW)pNMHDR;
	switch(pCustomDraw->nmcd.dwDrawStage)
	{
	case CDDS_PREPAINT:
		// Need to process this case and set pResult to CDRF_NOTIFYITEMDRAW,
		// otherwise parent will never receive CDDS_ITEMPREPAINT notification.
		*pResult = CDRF_NOTIFYITEMDRAW;
		return;
	case CDDS_ITEMPREPAINT:
		if(pCustomDraw->nmcd.uItemState & CDIS_SELECTED){
			// Change selected item text color and text backgroud color
			pCustomDraw->clrText = RGB(255,255,255);// White
			pCustomDraw->clrTextBk = RGB(0,0,255);// Blue
			*pResult = CDRF_NEWFONT;

			// Drawing the item yourself
			// CDC* pDc = CDC::FromHandle(pCustomDraw->nmcd.hdc);
			// *pResult = CDRF_SKIPDEFAULT;
		}
		break;
	default:
		break;
	}
}

Reference