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Snapshots contain information about the status of various steps in a Vuser script. VuGen displays snapshots in the Snapshot pane. The snapshots are displayed in various formats, depending on the protocol of the Vuser scripts. For example, snapshots for RDP Vusers are displayed as graphic images of the remote screen. In contrast, snapshots for Winsock Vusers are displayed as textual representations of the data buffers that are transferred while the Vuser script is recorded and replayed.
Note that the Snapshot pane is not available for all Vuser protocols - only specific Vuser protocols give you access to the Snapshot pane. Snapshots are taken both when a script is recorded and when the script is replayed. The Snapshot pane enables you to display the record and replay snapshots. By default, the Snapshot pane shows just a single snapshot. To enable you to compare snapshots, you can split the Snapshot pane to show two snapshots simultaneously. You can split the Snapshot pane either vertically or horizontally. Each section of the split Snapshot pane can show either a record snapshot or a replay snapshot. Typically, you would show a record snapshot together with its corresponding replay snapshot. This enables you to compare the record snapshot with the replay snapshot.
The Snapshot pane that is displayed for all Vuser protocols includes the same basic functionality. This basic functionality includes the ability to: Show one snapshot, or split the Snapshot pane to show two snapshots. You can split the Snapshot pane either horizontally or vertically.
The Snapshot pane that is displayed for some Vuser protocols improves your ability to compare snapshots by “synchronizing” the two snapshots that are displayed in the Snapshot pane. For example, when synchronizing graphic snapshots, if you place the mouse cursor over a specific location in one of the snapshots, VuGen displays a marker at the corresponding location in the other snapshot. In addition, as you move one snapshot vertically or horizontally within the Snapshot pane, VuGen moves the other snapshot accordingly, ensuring that the same section of each snapshot is displayed.
You can copy an image-based snapshot to the clipboard. This enables you to import the image into a graphics application, where you can analyze and modify the graphic. For details on how to copy a snapshot to the clipboard. Note that the "copy snapshot to the clipboard" functionality is available for only RDP, Citrix, and SAP protocols.
You can copy text from a snapshot to the clipboard. You can then paste the text from the clipboard into another application. For details on how to copy snapshot text to the clipboard. Note that the "copy snapshot text to the clipboard" functionality is available for only Ajax (Click & Script) and Web (Click & Script) protocols.
In addition to the basic Snapshot pane functionality, the Snapshot panes for some Vuser protocols include customized functionality. For example, the Snapshot pane for RDP Vuser scripts lets you display snapshots in either Full or Image modes; the Snapshot pane for Winsock Vuser scripts lets you display snapshots in either Text or Hex modes. The controls for the customized functionality can be found in the Snapshot pane toolbars.
In addition to showing record and replay snapshots, the Snapshot pane can display snapshots of errors that occurred during the replay of a script. The "snapshot on error" functionality is available for only specific Vuser protocols.