SeqLib - a library of functions to help with calculations of sequencer variable values. SeqLib contains a much requested function; something that calculates the variable value required to set a DAC output to a specified voltage. This is the equivalent of the VDAC32() operator built into the sequence compiler but can be used in a much more flexible manner. Other SeqLib functions convert time to sequencer ticks and generate variable values suitable for writing to the digital outputs or controlling the cosine outputs.

func Shuffle%()

This function randomises the order of items in an integer array. A typical application might be to randomise the order of presentation of common and rare auditory stimuli.

Newsflash() / NFIdle()

If you add these functions to your own scripts you can display Message boxes similar to those generated by the built-in Message() procedure but with the following extra features:

• You can define the screen position where the Message box appears.
• There is an optional system sound (beep) when the message is first displayed.
• The message closes automatically after a specified time has elapsed, thus avoiding the need to press a key before you can continue.

proc HideApps(); and proc RestoreApps();

These procedures can be used to hide all the floating windows and toolbars etc. at the start of a script and restore them at the end. This maximises the available screen area during script operation. The gFloat%[] array should be a global at the start of your script.

These procedures are used in many CED scripts. The particular variant given here keeps the script window itself hidden. You can find a slightly simplified version of these procedures and further information under App() in the Spike2 Help index.

These functions should be compatible with all versions of Spike2 for Windows.

proc ClearLogQ():

This Spike2 script procedure checks whether there is any text in the Log window. If the log contains text a Query box is displayed so that you can choose whether or not to clear the log before continuing. If you choose the answer No, the text caret is moved to the end of the log file. The procedure leaves the current view unchanged.

Add this function to the functions and procedures section of your own scripts. You can then call it at the beginning of script functions that write data to the log file or perhaps in the Quit() function, as an aid to keeping the log file in a tidy state.

This procedure should work in all versions of Spike2 for Windows

func DoButtons%()

This function allows you to set the enabled /disabled state of multiple toolbar buttons.

The ToolbarEnable() and ToolbarClear() script functions can only act on one (or all) buttons. Thus, you may need sequences of 4 or 5 calls to ToolbarEnable() at each point in the script where you need to set the enabled state of multiple buttons. The DoButtons%() function provides a method of setting the state of multiple buttons with a single function call. To use it, simply copy the DoButtons%() function into the functions and procedures section of your script and call it as illustrated in the example script.

This function requires Spike2 v5.14 or higher.