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The source code in this issue is designed for Visual Basic 4.0 16-bit and higher. It will probably work in VB3 with some minor changes.
Most of the source code for this issue was submitted by Martin Cordova (Thanks Martin!). If other members of Code of the Week wish to submit some of their source code for publication, please jump to http://www.codeoftheweek.com/submissions.html and fill out the necessary information
This issue introduces a couple of subroutines that make saving text files very easy. They are especially useful for saving and loading text from a text box. There is also a bonus subroutine for "fixing up" filenames (see details below).
SaveTextFile takes a string and saves it in the filename specified. GetTextFile reads from the filename specified and returns the string it read.
Public Function GetTextFile(ByVal sFile As String) As String Public Sub SaveTextFile(ByVal sFile As String, ByVal sBuffer As String)
GetTextFile will return the string read from sFile. Both routines will raise any error they encounter (such as file not found) to the caller.
Here is an example for using the SaveTextFile and GetTextFile functions. This particular example assumes you have a form with a textbox called Text1 and a command button called Command1. When the form is loaded it will automatically load your c:\autoexec.bat file. When you click on Command1 it will save any changes to c:\autoexec.bat.
Private Sub Command1_Click()
SaveTextFile "c:\autoexec.bat", Text1.Text
End Sub
Private Sub Form_Load()
Text1.Text = GetTextFile("c:\autoexec.bat")
End Sub
The bonus routine is called FixUpFilename. It's primary purpose is to take a filename and make sure it fully specifies the path. If the filename passed does not contain a path specification, it automatically adds the path App.Path. A useful modification to this might be to pass the default path instead of assuming App.Path.
Public Function FixUpFilename(sFile As String) As String
Returns the filename sFile along with a full path specification. If an error occurs it is raised to the caller.
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We have entered a partnership with VBXtras to provide many development tools available for sale on our web site. For a limited time we are offering a FREE one year subscription for anyone who purchases any products through our web site. If you are currently shopping for some cool tools, check out http://www.codeoftheweek.com/catalog.html
This area is new and does not yet have all products online. If there is something particular you are looking for (and can't find it on our site), please let us know. We probably can get it for you at a great price!
That concludes this issue of COTW. We hope you find the source code useful in your development.
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