The Variable Display

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The Variable display shows all of the existing variables in the highlighted stack frame. The value of each variable is updated whenever the application is stopped. The value for each array appears as an ellipsis (...). You can expand and contract the display of the array by clicking the ellipsis. When an array is expanded, each index is listed with its corresponding value. You can click to the left of the name of the variable to set a variable breakpoint, which causes the application to stop whenever the chosen variable is modified. See "Manipulating Breakpoints". Large variables are abbreviated in the Variable display. To see the complete value, double-click the variable, and the Data Display window appears. See "Displaying Data".

If the message "No variable info for this stack" appears in the Variable display, it means that the stack level that is highlighted in the Stack display is hidden. Stack levels are hidden as a result of calls to Tcl commands like vwait and uplevel. When vwait is called, it creates a new stack, and all of the non-zero levels of the old stack are hidden until the vwait call returns. When uplevel is called with the absolute level for x, all of the levels of the old stack that are greater than x are hidden until the uplevel call returns.

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