To get started with the widget development lets create a simple Widget to start a R/3 transaction (for eg. SE38 - the ABAP Editor transaction).
System Requirement:
1. Yahoo! Widget Engine
2. SAPgui 6.40
3. SAP System whose ABAP Editor your want to launch should be added in the SAP Logon Pad.
Steps:
1. Create a text file with the following content.
Name=
Name=
Language=EN
Command=SE38
Title=ABAP Editor
Type=Transaction
2. Save the file with extension .SAP (for eg: "ABAPEditor.SAP"). This will create a SAP Shortcut (For more details view my previous weblog about Introduction to SAP GUI For Windows.)