C / C++ / MFC

OK, I misunderstood your question. In this case you will need to filter the data in the combobox yourself, I don't know of any built in message that allows you to do this.<br />

CString strValue;
	CString strTemp;
	m_CtrlComboID.GetWindowText(strValue);
	std::map<CString,CString>::iterator it=m_mapId.begin();
    m_CtrlComboID.ResetContent();
	for(; it!=m_mapId.end(); it++)
	{
		strTemp = it->first;
		strValue.MakeUpper();
		if(strTemp.Find(strValue)==0)
		m_PatientID.AddString(strTemp);
	}
	m_CtrlComboID.SetWindowText(strValue);
	m_CtrlComboID.ShowDropDown();	

char buf[10];
unsigned char c = 65;
sprintf(buf, "%02X",c);
printf("%s\n");

41

CPallini wrote:

char buf[10];unsigned char c = 65;sprintf(buf, "%02X",c);printf("%s\n");
outputs
41

printf("%c\n", c)