The SAPGUI Screen and the GUI Library 

The GUI Library divides the R/3 SAPGUI screen into the following major parts:




The menu bar


The toolbar and its buttons


The area inside the screen with the various controls and fields


The following diagram shows the parts of the SAPGUI screen:

The Event Structure and the SAPGUI Screen

The GUI Library uses a structure, called the event structure (IT_EVENT), and several related structures to store the state of the SAPGUI screen and its data.

Your application communicates with

The szNormTitle in the diagram above is a member of the IT_EVENT structure containing the string of the title of the screen.

The szMessage member of the IT_EVENT structure contains the string of the message at the bottom of the R/3 SAPGUI screen.