为什么在vista下点击我程序的listctrl的项目会发出声间,叮叮声?

Question

但别人的程序不会,而且些程序在XP下也不会有响声.

Answer 1

点了不该点的地方，系统自动调用MessageBeep()函数。

Answer 2

大家帮忙分析一下:
void CMyDlg::OnItemchangedDevicelist(NMHDR* pNMHDR, LRESULT* pResult) 
{
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
// TODO: Add your control notification handler code here int nItem;
if(m_devList.GetItemCount()>0){
nItem=RetriveTargetMAC(MacAdrs);

if(nItem>=0)
{

//////////////////
CString szCnt;
CString sz;
sz.LoadString(IDS_SELECTDEVICE);
szCnt.Format(sz,m_Dev_count);
m_selcnt.SetWindowText(szCnt);
////////////
int nSel = pNMListView->iItem;
if(m_devList.GetItemCount()>0&&nSel>=0){
LPTSTR* arrpsz =m_devList.GetTextArray(nSel);
LPTSTR pszText = arrpsz[0];
memcpy(m_strLastSerial,pszText,10);
}
if(g_bSearch)
{
int nSelcount = m_devList.GetSelectedCount();
if(nSelcount>0)
{
CString csCnt;
if(nSelcount>1)
{
sz.LoadString(IDS_SELECTMORE);
csCnt.Format(sz,nSelcount);
}
else{
sz.LoadString(IDS_SELECTONE);
csCnt.Format(sz,nSelcount);
}
m_selcnt.SetWindowText(csCnt);
OnInval();
}
return;
}else
{
int nSelcount = m_devList.GetSelectedCount();
CString csCnt;
CString cs;
cs.LoadString(IDS_SELECTDEVICE2);
csCnt.Format(cs,nSelcount,m_Dev_count);
m_selcnt.SetWindowText(csCnt);
OnInval();
}

CString szDevinfo="";
char strMac[128]={0};
if(m_devList.GetSelectedCount()==1/*&&m_devList.GetItemState(nSel,LVIS_SELECTED)*/){
sprintf(strMac,"%02X-%02X-%02X-%02X-%02X-%02X",(int)dev_info[nItem].hw_info.mac_adrs[0]
,(int)dev_info[nItem].hw_info.mac_adrs[1]
,(int)dev_info[nItem].hw_info.mac_adrs[2]
,(int)dev_info[nItem].hw_info.mac_adrs[3]
,(int)dev_info[nItem].hw_info.mac_adrs[4]
,(int)dev_info[nItem].hw_info.mac_adrs[5]);
sz.LoadString(IDS_DEVICEINFO);
szDevinfo.Format(sz,dev_info[nItem].hw_info.hw_ver,dev_info[nItem].sw_ver,strMac);
//szDevinfo="Hardware Version:"+dev_info[nItem].hw_info.hw_ver+"\n"+"Firmware Version:"+dev_info[nItem].sw_ver+"\n"+"Mac Address:"+strMac;
m_ed.SetWindowText(szDevinfo);
}else
{
m_ed.SetWindowText("");
}
OnInval();
}else
{
CString szCnt;
CString sz;
if(!g_bSearch){
sz.LoadString(IDS_SELECTNULL);
szCnt.Format(sz,m_Dev_count);
m_ed.SetWindowText("");
m_selcnt.SetWindowText(szCnt);
}else
{
sz.LoadString(IDS_SELECTONE);
szCnt.Format(sz,0);
m_selcnt.SetWindowText(szCnt);
}
OnInval();
}
}
*pResult = 0;
}
void CMyDlg::OnClickDevicelist(NMHDR* pNMHDR, LRESULT* pResult) 
{
// TODO: Add your control notification handler code here
//AfxMessageBox("0000000");
    NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
if(m_devList.GetItemCount()<1)
{
return;
}
if(m_devList.GetSelectedCount()<1)
{//禁止取消选定最后一项
m_devList.SetItemState(pNMListView->iItem, LVIS_SELECTED|LVIS_FOCUSED, LVIS_SELECTED|LVIS_FOCUSED);
} int nSel = pNMListView->iItem;
if(m_devList.GetItemCount()>nSel&&nSel>=0){
LPTSTR* arrpsz =m_devList.GetTextArray(nSel);
LPTSTR pszText = arrpsz[0];
memcpy(m_strLastSerial,pszText,10);
} int nItem;
nItem=RetriveTargetMAC(MacAdrs);
if(nItem<0)
{
return;
}
////////////////
if(g_bSearch)
{
return;
}
////////////////////
int nSelcount = m_devList.GetSelectedCount();
CString csCnt;
CString cs;
cs.LoadString(IDS_SELECTDEVICE2);
csCnt.Format(cs,nSelcount,m_Dev_count);
m_selcnt.SetWindowText(csCnt);
OnInval();

//////////获得最后选定项目的序列号以便下次定位到这一项////////// if(m_devList.GetSelectedCount()==1)//是否选定了多项。
{
CString szDevinfo="";
char strMac[128]={0};
    CString sz;
sprintf(strMac,"%02X-%02X-%02X-%02X-%02X-%02X",(int)dev_info[nItem].hw_info.mac_adrs[0]
,(int)dev_info[nItem].hw_info.mac_adrs[1]
,(int)dev_info[nItem].hw_info.mac_adrs[2]
,(int)dev_info[nItem].hw_info.mac_adrs[3]
,(int)dev_info[nItem].hw_info.mac_adrs[4]
,(int)dev_info[nItem].hw_info.mac_adrs[5]);
sz.LoadString(IDS_DEVICEINFO);
szDevinfo.Format(sz,dev_info[nItem].hw_info.hw_ver,dev_info[nItem].sw_ver,strMac);
//szDevinfo="Hardware Version:"+dev_info[nItem].hw_info.hw_ver+"\n"+"Firmware Version:"+dev_info[nItem].sw_ver+"\n"+"Mac Address:"+strMac;
m_ed.SetWindowText(szDevinfo);
}else
{m_ed.SetWindowText("");}
OnInval(); *pResult = 0;
}int CSet_CenterDlg::FindLastSel(unsigned char* szSerial)
{
int i=0;
for(;i<m_Dev_count;i++){
LPTSTR* arrpsz =m_devList.GetTextArray(i);
LPTSTR pszText = arrpsz[0];
if(memcmp(szSerial,pszText,10)==0)   break ;
}
if(i==m_Dev_count)
i=0;
return i;
}

Answer 3

对了,这种情况只在老板的电脑繁体中文vista下出现.是不是设置的问题,是哪项设置的问题.