DER_DBG_TAB environment variable

The DER_DBG_TAB environment variable affects how the debugger expands tab characters in a source or mixed view within a Source pane. The value for this variable is an integer, indicating the number of spaces to convert a tab character into. Unlike DER_DBG_TABGRID, DER_DBG_TAB does not cause the debugger to place tabbed information in specific columns; it simply results in each tab in the displayed files being converted to the indicated number of spaces.

Note: If DER_DBG_TABGRID has been set to a nonzero value, the setting of DER_DBG_TAB has no effect.

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Setting environment variables for the debugger

Related References
DER_DBG_TABGRID environment variable