Capture History

As data for a project is captured and transferred to the PC, it is stored on the Hard Drive as a history buffer and maintained according to the settings configured in Acquisition Options. Each project maintains its own history buffer in a sub folder using the same name as the project file. However, the project file does not require the history buffer to be present when opened. This allows the project file to operate as a 'stand-alone' file for sharing or archival purposes. When saving the project file, the currently loaded capture will be the data stored in the project (see also: Acquisition Options).

History Browsing

The history buffer can be accessed utilizing the History Menu, the Browse button or the bar graph. These items are located at the bottom of the main  window. When browsing the history, the data for that history item will be loaded and all Signals, Auto Searches, Lists, Tables, etc. will refresh as if the data had just been captured.

Menu Button

Click the Menu button to display the Capture History Menu:

Browse Button

A Left-Click or Right-Click on the browse button will load the previous or next item in the history buffer. Holding the mouse down will repeat the action  in the same direction, causing an "Animation" of the history.

Search History Button

Click this button to open the Capture History Search. This allows a search of the entire capture history using any normal search displayed in the Global search or the Search Manager (see History Searching below).

Bookmark Button

Click the Bookmark button to toggle a bookmark for the current capture. If already bookmarked, then the bookmark is cleared.

Bar Graph

Click on the bar graph to "jump" to different items in the history.

Click and drag the mouse in the bar graph to display the history item number to be loaded when the mouse is released.

The triangle in the bar graph indicates the current position in the buffer.

The small squares represent a bookmarked item which will also be listed in the history's menu for quick access.

The numbers in the top-left portion of the bar graph represent the Capture ID Number, the Position of the current capture in the buffer and the Total number of captures stored (in that order).

History Searching

The entire captured history can be searched forward and backward to find a capture with a search result that matches the halt qualifier specified.

Selected Search

Any search that you have defined for this project will be listed in the search selection drop-down box. Choose the search you want to use from this selection (see Searches,Searching).

Halt Qualifier

Select the Logic (>, <, =, <>, <=, >=) and enter the count for the search to match. Most of the time you may be looking for any file that results in a single match or more and would set the logic to ">=" and the count to "1". However, you may be looking for the "odd" capture that has far fewer or greater matches than the other captures so we have allowed for values up to 32 bits to be specified for the count.

Include Start Position

This option controls whether the search includes the file at the current position or not. Check this option to include the current position when the search begins (forward or backward). This box will be set automatically if the selected search is changed or on any changes to the halt qualifier. This option is automatically cleared when the search of a capture file results in a match, which saves you the trouble of manually clearing it if you re-start the search.

Backward

This button starts the search from the current position and proceeds towards the oldest capture until a match is found or the oldest capture has been searched. The file at the current position is only searched when the "include start position" option is selected.

Forward

This button starts the search from the current position and proceeds towards the newest capture position until a match is found or the newest capture has been searched. The file at the current position is only searched when the "include start position" option is selected.

Cancel

This button stops the search.

Close

This button closes the search window. The close button will not be available if a search is in progress. Cancel the search if you want to close the window. When the window closes it will remember your current settings.

When the search is halted or stops automatically, the capture file at the stopped position will be loaded and all windows updated with the new data.

No Matches found or Cancel example:

Match found Example: