void CEditFrameView::OnFontSizeIncrease() { CBCGPRibbonBar* pRibbon = ((CEditFrameDialog*) GetTopLevelFrame ())->GetRibbonBar (); ASSERT_VALID (pRibbon); CBCGPRibbonComboBox* pSizeCombo = DYNAMIC_DOWNCAST ( CBCGPRibbonComboBox, pRibbon->FindByID (ID_FONT_SIZE)); if (pSizeCombo == NULL) { return; } int nItem = pSizeCombo->GetCurSel (); if (nItem < pSizeCombo->GetCount () - 1) { pSizeCombo->SelectItem (nItem + 1); OnFontSize (); } }