TrueLog Explorer supports the visualization of SAPGUI requests and responses in the same way it supports the visualization of HTTP client requests and HTTP/HTML server responses.
It is possible that when a window is destroyed or when a new window is created due to the action of a selected API node (for example, a button click) that the End Request pane will show a screenshot of the next activated window. This can be confusing as control information in the tree and the screenshot will not match. This only happens on the last node of a window.
Under each SapGuiSetActiveWindow node is a virtual node that does not reflect an API call. Those nodes are called SapGuiRoundtrip and contain all API calls that have been sent to the server in a single roundtrip. Only the last API call under the SapGuiRoundtrip node forces a roundtrip. This API call also generates the measures that have been selected in the profile settings with the timer name specified as the last parameter for the call.
When you have Capture Screenshots enabled, a screenshot is captured with each newly activated window. Screenshots are displayed in TrueLog Explorer when you click a SapGuiSetActiveWindow node or a sub node.
When you also have Capture Screenshots for every action enabled, a screenshot is taken before and after each roundtrip. These screenshots are displayed in TrueLog Explorer when you click a SapGuiRoundtrip node or a sub-action node.
When the Log control information in TrueLog option is enabled, information about each control on each window is logged. When a control changes its value at a certain API node, the changes are reflected in the TrueLog and the controls are displayed in a tree hierarchy.