write into popup

Question

I have to display a popup for a legend like in STMS transaction

I know how to write this tab with WRITE statement, but how can I display it in a popup?

Answer 1

You can achieve this by using CALL SCREEN ... STARTING AT ..., then using SUPPRESS DIALOG in the PBO processing to bypass the screen (dynpro) processor. Then, in the PAI processing, use LEAVE TO LIST-PROCESSING followed by the WRITE statements. You can follow this in the function module TMS_UI_POPUP_LEGENDE that shows the popup you mentioned as a reference. The procedure is documented in the online help as well.

---

In an ABAP dialog application, you're either working with screens or with (interactive) lists. To get a popup window, you have to create and CALL a custom screen (dynpro). Inside that screen, you hand over control to the list processor. That's the component responsible for taking what ever you WRITE and place it somewhere on the screen. For some - probably mostly historical - reason, the command to do so is LEAVE TO LIST-PROCESSING. I suppose that at some point, the intended flow between screens and lists was different from what it has become today, and that was the reason for naming the command this way. From a modern point of view and especially in your use case, the LEAVE aspect does not make any sense, so just take it as it is and use it.

Also note that it's LEAVETOLIST PROCESSING - LEAVE LIST-PROCESSING without TO is the opposite statement!