public string DoQuery(string query)
{
IntPtr viewhandle = IntPtr.Zero;
IntPtr nothing = IntPtr.Zero;
int nres = CallMsi.MsiDatabaseOpenView(dbhandle, query, ref viewhandle);
nres = CallMsi.MsiViewExecute(viewhandle, nothing);
IntPtr rechandle = IntPtr.Zero;
nres = CallMsi.MsiViewFetch(viewhandle, ref rechandle);
if (0 != nres) // No data
{
CallMsi.MsiCloseHandle(viewhandle);
return(null);
}
int outlen = 255;
StringBuilder outbuff = new StringBuilder(outlen);
nres = CallMsi.MsiRecordGetString(rechandle, 1, outbuff, ref outlen);
int rel = CallMsi.MsiCloseHandle(viewhandle);
rel = CallMsi.MsiCloseHandle(rechandle);
if (0 != nres) // No data
{
return(null);
}
return(outbuff.ToString());
}
public void InternalDispose(bool disposing)
{
CallMsi.MsiCloseHandle(dbhandle);
dbhandle = IntPtr.Zero;
}