TRUE | The run-time system detects the Ctrl, Alt, and Shift keys. These keys can then be used for COBOL utilities that would otherwise use the alternate key sequences of /c for Ctrl or /a for Alt. For example, the Development Environment is easier to use if detect_alt_ctrl can be set to TRUE. |
FALSE | The run-time system does not detect the Ctrl, Alt, and Shift keys. |
Comments:
Most UNIX environments do not detect input when the Ctrl, Alt, or Shift keys are available on a keyboard and are pressed by themselves. In these cases, detect_alt_ctrl must be set to FALSE. The operating system SCO Open Desktop from version 2 onwards does detect these keys individually and detect_alt_ctrl can be set to TRUE.