CComboBox::GetItemHeight
Call the GetItemHeight member function to retrieve the height of list items in a combo box.
int GetItemHeight(
int nIndex
) const;
Parameters
- nIndex
Specifies the component of the combo box whose height is to be retrieved. If the nIndex parameter is –1, the height of the edit-control (or static-text) portion of the combo box is retrieved. If the combo box has the CBS_OWNERDRAWVARIABLE style, nIndex specifies the zero-based index of the list item whose height is to be retrieved. Otherwise, nIndex should be set to 0.
Return Value
The height, in pixels, of the specified item in a combo box. The return value is CB_ERR if an error occurs.
Example
// Set the height of every item so the item
// is completely visible.
CString strLBText;
CSize size;
CDC* pDC = m_pComboBox->GetDC();
for (int i = 0; i < m_pComboBox->GetCount(); i++)
{
m_pComboBox->GetLBText(i, strLBText);
size = pDC->GetTextExtent(strLBText);
// Only want to set the item height if the current height
// is not big enough.
if (m_pComboBox->GetItemHeight(i) < size.cy)
m_pComboBox->SetItemHeight( i, size.cy );
}
m_pComboBox->ReleaseDC(pDC);
Requirements
Header: afxwin.h