Q23646: CV Prior to 3.00 Needs /S for Mouse to Appear in OS/2 DOS Box
Article: Q23646 Product(s): See article Version(s): 1.00 1.10 1.11 2.00 2.10 2.20 2.30 2.35 Operating System(s): MS-DOS Keyword(s): ENDUSER | | mspl13_basic Last Modified: 6-FEB-1991 With all versions of real-mode CodeView (CV) earlier than version 3.00, the mouse cursor does not display when running in a DOS session under OS/2 in the DOS compatibility box. The situation exists because the mouse draws the pointer only in video page zero, while CodeView uses video page one. This problem is caused by OS/2 itself because the mouse cursor works normally under DOS. To work around this limitation with CV 1.x or 2.x, invoke CodeView with the /S switch so screen swapping is used as the method of screen exchange. This method forces CodeView to swap in and out of page zero. Beginning with version 3.00, CodeView detects whether it is running in a DOS session under OS/2, and if so, automatically starts up with /S as the default in order to make the mouse visible.
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