Q59527: Using RIGHT ARROW on Dialog Line Locks Keyboard or GP Faults
Article: Q59527 Product(s): See article Version(s): 1.02 | 1.02 Operating System(s): MS-DOS | OS/2 Keyword(s): ENDUSER | buglist1.02 | mspl13_basic Last Modified: 15-MAY-1990 Manipulating text on the dialog line must be handled differently in the Microsoft Editor (M) Version 1.00 than in 1.02. If you use an M Version 1.00 procedure in M Version 1.02 under DOS, the keyboard will lock up and alternating screens of jumbled characters may appear on the screen. Under OS/2, you will get a GP fault resulting in the termination of MEP by the operating system. The problem can be observed by using the following steps from within the editor: Note: Remember that under DOS your machine will hang! 1. Press ALT+A to invoke the <arg> function. 2. Type any character (for example, the letter "d"). 3. Hold down the RIGHT ARROW key. When the text in the dialog line has scrolled off the left side of the screen, in M 1.00 the editor will issue a beep. In M 1.02, the machine will lock in DOS or GP fault in OS/2. This problem occurs even if you omit Step 2, but it is more difficult to see the error. To retain the same functionality in M 1.02, instead of using the RIGHT ARROW key to move the cursor to the right, use the SPACEBAR. Using the SPACEBAR rather than the RIGHT ARROW key allows you to take advantage of the maximum arg line limit without the error. Microsoft has confirmed this to be a problem in Version 1.02. We are researching this problem and will post new information here as it becomes available.
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