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HKEY hk;
int result = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
_T("SYSTEMControlSet001ControlSession ManagerEnvironment"),
NULL,
KEY_READ, &hk );
if(result != ERROR_SUCCESS)
{
if(result == ERROR_FILE_NOT_FOUND)
{
MessageBox(g.hwnd,_T("no such key in RegOpenKeyEx"),_T("title"),MB_ICONWARNING);
}
else
return;
}
DWORD lsize;
result = RegQueryValueEx(hk, _T("Path"),NULL,NULL,
NULL, &lsize);
if(result != ERROR_SUCCESS)
{
if(result == ERROR_FILE_NOT_FOUND)
{
MessageBox(g.hwnd,_T("no such key in RegQueryValue"),_T("title"),MB_ICONWARNING);
}
else if(result == ERROR_MORE_DATA)
{
MessageBox(g.hwnd,_T("need more buffer"),_T("title"),MB_ICONWARNING);
}
else
return;
}
TCHAR *value = (TCHAR * )malloc(lsize * sizeof(TCHAR));
result = RegQueryValueEx(hk, _T("Path"),NULL,NULL,
(LPBYTE)value, &lsize);
if(result != ERROR_SUCCESS)
{
if(result == ERROR_FILE_NOT_FOUND)
{
MessageBox(g.hwnd,_T("no such key in RegQueryValue"),_T("title"),MB_ICONWARNING);
}
else if(result == ERROR_MORE_DATA)
{
MessageBox(g.hwnd,_T("need more buffer"),_T("title"),MB_ICONWARNING);
}
else
return;
}
SetWindowText(g.hwndEdit,value);
free(value);
RegCloseKey(hk);
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