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The following screen shot shows the code window
displaying the key VB.Net code loop that does the
image file renames. You can right click on it and
choose “Copy Image” to copy the screen shot to an
image editor like MS Paint to view it in more detail.

Visual Studio 2019 Developer Interface – Design
View

In the Design view, the program’s window appears
as it would look when it is running. The developer
can drag and drop Windows “Controls” (buttons, text
boxes, check boxes, labels, dropdown lists, …) onto
the program window and then set their properties by Visual Studio 2019 Developer Interface – Code View
dragging with the mouse or by typing into the
control’s property sheet. Controls can be given
meaningful names (e.g. btnRenameFiles instead of I’ve uploaded the Picture Renamer program to the
Button1) to make the underlying program code club website as a .zip file. The direct hyperlink is:
easier to understand. http://www.scscc.club/smnr/PictureRenamer.zip. Just
click the link or copy and paste it into your web
Once the program’s window is laid out nicely, with all browser’s address bar. Your browser will download
the controls properly sized and aligned, the the .zip file to your PC’s hard drive. If you’re
developer moves to the Code view and enters the interested in getting the source code and project
program code needed to operate the user interface files, send me an email at tomburt89134 *at) cox.net
and perform the application’s functions. When a user and I’ll send you a .zip file with the complete
clicks on or types into a Control, that action is package.
converted by Windows into a message that is sent to
the application indicating which Control was acted Unlike many Windows programs, the Picture
on and what type of action it was (click, double-click, Renamer does not need to be installed; just copy it
keypress). Each such message is received by the to some folder on your hard drive To run the Picture
program and concerted by the .Net runtime to a Renamer, just double-click on the
function call to an event handler. The developer PictureRenamer.exe file. To make a desktop
codes event handlers for actions he/she wants the shortcut, left click the PictureRenamer.exe file to
program’s UI to respond to in some special way. select it, then right-click to bring up a context menu.
Choose “Send to” and then “Desktop (create
In this example, they key action is the user clicking shortcut)”.
on the “Rename Files” button. That action triggers a
Click event that is sent to the Click handler function
for the “Rename Files” button. That Click event
handler function executes a sequence of VB.Net
code instructions that carries out the actual series of
file renames for the image files in the designated
folder. In the programming world, this is called an
event-driven, object-oriented model.

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