Modifying your error system
 Changes to ErrorSys.
──────────────────────────────────────────────────────────────────────────────

 To take full advantage of the features that MrDebug offers, you should make
 two changes to your source code.

        1. Add the following line to your error system:

                MrdSaveErr( oError )

           In the case of ErrorSys.PRG this would be the first line of code
           within the DefError Function. So you would want to insert a line
           of code around line 46'ish that says:

                MrdSaveErr( e )

           This allows MrDebug to display the output of any CA-Clipper error
           in it's own window.

        2. Replace all STDOUT calls in either the standard error system or
           your error system with ?

 If you have not made any changes to the standard error system, then you may
 choose to use MrDebug's replacement error system instead. In which case, you
 will need to compile and link _MrdErSy.prg.

 Why the changes?

 Let us take an example:

        LOCAL a := 1
        LOCAL b := "string"

        ? a + b

 Okay, so it's no award-winning program, but it will serve to make a point.

 With the above changes in your error system     ┌──────────────────┐
 you will be able to take advantage of the       │ Error  Base/1081 │
 facilities for the error system that MrDebug    │  Argument error  │
 has the ability to use. In the above code       │   1 + "string"   │
 example, when it falls over you get an ALERT()  │                  │
 box similar to the one on the right. When you   │       Quit       │
 come out of the alert the error window will     └──────────────────┛
 automatically be selected and will display
 something similar to the example shown below:

 ┌─ 8 Error ────────────────────────────┐ Here we can see the error window
 │   Severity:Error                     │ with the an example of the error
 │ Error Code:BASE/1081                 │ that would occur with the code
 │Description:Argument error            │ shown above.
 │  Operation:1 + "string"              │
 │                                      │ You could view the actual error
 └──────────────────────────────────────┛ object by pressing <ENTER>.

 Pressing the <ENTER> would cause MrDebug to call the object browser and you
 would see the following:

 ┌─────────────────┬────────── Error Object ─────────────────────────────┐
 │Object Browser   │Variables            Contents                        │
 │ERROR           ↑│ARGS            E--- {1...2}                        ↑│
 │                █│CANDEFAULT      E--- .F.                            █│
 │                █│CANRETRY        E--- .F.                            █│
 │                █│CANSUBSTIT      E--- .T.                            █│
 │                █│CARGO           E--- NIL                            █│
 │                █│DESCRIPTIO      E--- "Argument error"               █│
 │                ↓│FILENAME        E--- ""                             █│
 ├─────────────────┤GENCODE         E---          1                     █│
 │Methods          │OPERATION       E--- "+"                            █│
 │CLASSNAME       ↑│OSCODE          E---          0                     █│
 │                █│SEVERITY        E---          2                     █│
 │                █│SUBCODE         E---       1081                     █│
 │                █│SUBSYSTEM       E--- "BASE"                         █│
 │                █│TRIES           E---          0                     █│
 │                ↓│                                                    ↓│
 └─────────────────┴─────────────────────────────────────────────────────┛