MAKEMSI quickly and reliably creates MSI files in a non-programmatic way\Source CodeVBSCRIPTCustom Action FunctionsCaDebug()

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CaDebug()

This function can be used in any generated jscript or vbscript custom actions.

This function can update line 1 and 2 of the progress bar. It always updates any verbose log you may have set up and optionally creates/updates a separate text log file. It also echos the message to the console if being tested via cscript.

The function takes these parameters:

1. To Progess Bar?
   More details below but in summary:

   • 0 means that the progress bar is not updated.

   • 1 or 2 indicates that you wish to update the corresponding line of the progress bar as well.

2. The text of the message.

On entry if "err.number" is not 0 then the "err" details are dumped as its quite possible an error has occurred. Scripts are hard to debug so this hopefully makes it easier. Any "err" state is preserved by this routine.

Log File [PARM1 = 0]

The line is written to the verbose log, it has these attributes:

• Will always be logged to a text file (if enabled).

• Parameter 2 gets msi formatting replaced.

• Doesn't get seen by user (not on UI dialogs).

• Logs the message time (VbsCa only).

Status Line 1 [PARM1 = 1]

The line is written to the verbose log, it has these attributes:

• Will always be logged to a text file (if enabled).

• Parameter 2 gets msi formatting replaced.

• Uses "ActionStart" message.

• Should be short or will be truncated in the progress dialog.

• Logs the message time.

All MSI progress bars will have the capability of displaying some progress text as well as moving the "bar" (this control is called "status" in the MSI Platform SDK "UISample.MSI" MSI).

Assuming that you have the capability of displaying 2 text fields then I suggest that line 1 be used to indicate a major step is beginning and normal messages being generated to line 2 (this is also how Windows Installer does it).

This text should not be too long as the field is probably restricted in length and is the main thing the user sees. It would make sence to place a summary in "line 1" and a detailed equivalent in "line 2".

Status Line 2 [PARM1 = 2]

The line is written to the verbose log, it has these attributes:

• Will always be logged to a text file (if enabled).

• Parameter 2 does not have msi formatting replaced (its ignored).

• Uses "ActionData" message.

  If these messages are not "consumed" by a dialog (see the "Progress Bar - More Detail" section) for information on how to make this happen) then the messages will not appear in a verbose log and this looks to be the case even when the dialog is not displayed (for example in a silent install).

• Logs the message time (VbsCa only).

EXAMPLE

<$VbsCaEntry "Install">
   CaDebug 1, "Installing """ & AppName & """"  ;;To progress dialog and logs
<$/VbsCaEntry>

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