Ejemplo n.º 1
0
        public void MsiThrowOnFailure(IntPtr hDatabase, uint retVal, string message)
        {
            if (retVal != CwMsiWin32.ERROR_SUCCESS)
            {
                IntPtr hView   = IntPtr.Zero;
                IntPtr hRecord = IntPtr.Zero;
                hRecord = CwMsiWin32.MsiGetLastErrorRecord();  //try to get a handle to the error record
                string retString = message + "( SYSTEM ERROR CODE " + retVal + ").";

                if (hRecord != IntPtr.Zero)
                {
                    uint errCode = CwMsiWin32.MsiRecordGetInteger(hRecord, 1); //MSDN says field 1 is the err code
                    retString += "\n\nError Table data (code=" + errCode + ")";
                    IntPtr lpBuffer      = Marshal.AllocHGlobal(4096);
                    uint   pcchResultBuf = 4096;

                    //format the record string
                    CwMsiWin32.MsiFormatRecord(IntPtr.Zero, hRecord, lpBuffer, ref pcchResultBuf);

                    //add it to our main return string
                    retString += "'" + Marshal.PtrToStringAnsi(lpBuffer) + "'";

                    //cleanup duty
                    Marshal.FreeHGlobal(lpBuffer);
                    CwMsiWin32.MsiCloseHandle(hRecord); //discard the error record handle now that we have the code
                    hRecord = IntPtr.Zero;
                }

                throw new Exception(retString);
            }
        }