IT13444: GRID (RULE) LINE DISAPPEARED AT INPUT FIELD WITH MS MINCHO FONT.

APAR status

• Closed as documentation error.

Error description

• Grid line disappears at the input field of a 5250 session when
  the MS Mincho font is used. The grid line displays correctly
  when MS Gothic (block letter) font is  used. The grid line can
  be seen when changing the color of the grid line.
  
  Problem's recreate:
  
  1
  Edit -> Preferences  -> Appearance -> font
  2
  Select MS Mincho font
  3
  Edit -> Preferences -> Appearance -> Display Setup
  4
  Select Rule Line -> On at grid line -> Crosshair (line style)
  -> Click OK button
  5
  You can see that the grid line at the input field has
  disappeared.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Personal Communications users configuring sessions with  *
  * rule lines, where the color of the rule line is the same as  *
  * that of the grid lines / underlines in the emulator screen.  *
  * The problem is seen when the session font is set to MS       *
  * Mincho.                                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Rule lines are enabled on an IBM Personal Communications     *
  * emulator screen containing grid lines. The session font has  *
  * been set to MS Mincho.                                       *
  *                                                              *
  * When the color of the rule line and that of the grid-lines / *
  * underlines are same, both disappear. This affect user        *
  * experience as an end user would not be able to detect        *
  * beginning and end of an input field, when the line denoting  *
  * the area of input field disappears.                          *
  *                                                              *
  * Recreate steps: On an emulator session -                     *
  * 1. Go to: Edit -> Preferences  -> Appearance -> font         *
  * 2. Select MS Mincho font                                     *
  * 3. Go to: Edit -> Preferences -> Appearance -> Display Setup *
  * 4. Select Rule Line -> On at grid line -> Crosshair (line    *
  * style) -> Click OK button                                    *
  * 5. The grid line at the input field vanishes.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• When two or more objects overlap, IBM Personal Communications
  calculates the RGB values of each object and uses the calculated
  value to render the areas of overlap. If the color of two
  overlapping objects are same, the RGB value nullifies, causing
  the area to be displayed in black (with the background being
  black by default).
  
  The behavior seen is working as designed. To work around the
  problem, it is recommended for users to change the color of two
  object appropriately using color mapping facility.
  
  Steps to change colors using color mapping are as below:
  1. Open IBM Personal Communications emulator session.
  2. Select: Edit -> Preferences -> Appearance ... -> Color
  Mapping
  3. Customize the color of objects as per the rquirement.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels