Script Updated 30 Jan 2009
With improved method of splitting lines, hopefully to stop the odd message disappearing off the right hand side of the screen.
The only script that has changed is 'ReadSMS.mscr' & it now puts all the lines of the message into one registry value, so you need to change your registry text in WAD to point to 'HKCU\Software\My_Utilities\SMS\Message' rather than Line1, Line2, etc.
As before you can adjust the length & number of lines by altering the appropriate values at the begining of the script.
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An earlier question from Neodd70 prompted me to look into being able to preview message on a virtual page, I've come up with what seems to be a viable solution for SMS, I have used a component(s) from ThrottleLauncher
www.throttlelauncher.com which the author APBilbo has kindly allowed the use of as a standalone application.
As you can see from the screenshot I've ended up with it looking like a sort of copy of the message page from Manila 2D, I've included the images if you want to use them.
It allows a preview of the first 7 lines of a message & adds "..." at the end if the message is longer. the included shortcuts are 'SMS Next' which moves to the next newest message, 'SMS Previous' which moves to the next older message, 'SMS Details' which shows the whole message in a HTML window, 'SMS Refresh' which should be used as the page entry script, as this will display the most recent message on the page & 'SMS Reply' which, well, allows you to reply to the message sender.
The Registry entries that are created / updated when the shortcuts are run, are as follows, All under 'HKEY_CURRENT_USER\Software\My_Utilities\SMS' :
'Line1' to 'Line7' this splits the text into individual lines, 'Read' indicates if the current message is read or unread, 'Selected' is the number of the current message, 'Total' is the number of messages in the inbox & 'Sender' is the sender.
As neither the application or WAD do textwrapping the Mortscript 'ReadSMS.mscr' parses the message into lines, currently set to 25 chars long to suit my QVGA screen & the images I use, but if you change the value of 'linelength' at the begining of the 'ReadSMS.mscr. script then you can make them whatever length you want.
To actually use this, all that is needed is to copy the folder 'Message2Reg' (which contains the applications, DLLs & scripts) to '\Program Files\' & the 'Messages' folder (which contains the shortcuts) to '\Windows\Start Menu\Programs. Then on your selected page assign 'SMS Refresh' as the page entry script & the Next, Previous, Details & Reply shortcuts to appropriate buttons to suit your chosen layout.
Oh, & if you don't want to use the HTML preview you can delete 'template.html & 'OpenNETCF.DLL' which will save about 220Kb.
Note: opening the message in the HTML preview will mark the message as read, whereas viewing in the 'envelope' will not.
It should all work reliably, but no guarantees.
Edit: Throttle Launcher does not need to be installed, but you do need to create the registry key 'HKLM/Software/ThrottleLauncher/Messaging' then the first time the program is run it will create the necessary subkeys below this.