Screen not updating using WinHllapi
I'm trying to connect to an IBM iAccess terminal using WHLAPI32.dll and the 32-bit WinHllapi.
When I start the interrogation, the terminal screen is correctly displayed in the Text Designer field in the Pega Robot Studio (v1.19.1). However, when I'm typing in the terminal, these changes are not shown in the Text Designer. When I move to a different screen in the terminal, nothing happens in the Text Designer either.
When I stop the interrogation, and start the interrogation again, the new screen is shown in the Text Designer, but the problem persists. Only the screen that is shown when starting the interrogation is seen.
I've attached the configuration as Config.png.
I've also tried to use ELHAPI32.dll with the 32-bit EHllapi, but this resulted in the following error:
The specified winHLLAPI function (WinHllApi) could not be found in WinHLLAPI dll
For this issue I've already looked at https://support.pega.com/question/specified-winhllapi-function-could-not-be-found-winhllapi-dll and https://support.pega.com/question/specified-winhllapi-function-winhllapi-could-not-be-found-winhllapi-dll , but these did not solve the problem unfortunately.
Thanks in advance
Pegasystems Inc.
US
@RoelandL Make sure that you are launching the emulator first. After you have brought up your emulator session, click Start Interrogation. At Runtime, you'd first launch you emulator application (either through a Windows adapter or via a Process.Start method) and once your session is up and running, you'd start you text adapter.
Achmea
NL
@ThomasSasnett Thank you for your reply.
Before starting the Text Adapter, I always launch the emulator first. The first screen on the emulator is shown correctly in the text adapter, but it doesn't change after that, in the text adapter, while the emulator's screen is changing.
I've added another image to show the situation I'm describing. I've blurred some text, but I hope the point still comes across well. In the text adapter, you can see an active interrogation session, which hasn't changed since starting, while the emulator is on a new screen.
Pegasystems Inc.
US
@RoelandL Are you certain that your emulator session is connected to the same SessionID that you have defined in your adapter? Without being hands-on, that is something I would check on. If they are both set to the same session ID, you might also check on the DllName to make sure both are pointed to the same DLL. You can use a Tool like Process Explorer to see the DLLs that your emulator is loading. Perhaps it is loading a different HLLAPI dll than the one you have the adapter connected to.
Achmea
NL
I'm a direct colleague of Roeland and I have been appointed to the issue. To answer your questions, it looks like it's the correct session ID. If I switch to anything else than the one we are actually using we get and error. I did some more testing and for me it looks like its hooking but not completely. For example, when I have started the emulator and then also start the interrogation. Both screens show the same info. If I add my username through the emulator, the information shown in the interrogation window does not show the information I just added. So no info is going towards the interrogation session.
If I do the same, but instead of typing my username in the emulator I type it through the interrogated session (within studio) the username only shows up in the emulator and again nothing in the interrogation session. For me it looks like it's not updating within Studio or it is not receiving any data to update itself. But it can send keystrokes etc to the emulator.
Im currently testing on version 19.1.109
Pegasystems Inc.
US
@NielsL One thing I would check is to verify that you are using the correct HLLAPI DLL in your adapter. Generally speaking, if you use Process Explorer, you can get a list of the DLLs loaded into a particular process. I would examine the ones shown in your emulator and look for any with HLLAPI in the name and note those. Ideally, there's only one. Make sure your adapter is using that DLL as well. If there's not a difference or you still need assistance, I would suggest opening a support request. Our support team can meet with you to assist live.