Kbase 18228: Unwanted Scroll Bars in Progress Applications
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
02/09/1998 |
|
Unwanted Scroll Bars in Progress Applications
Some Progress applications will display Windows scroll bars at
unexpected times. The cause can be the configuration of the PC that
is executing the program.
Microsoft Windows will automatically insert scroll bars anytime the
entire screen will not fit inside the display area. For instance, a
screen designed to run at 800-by-600 pixels will always have scroll
bars inserted by Microsoft Windows anytime it is displayed at a
resolution lower than 800-by-600. The standard rule is that all
applications should be developed, compiled and tested at the lowest
resolution expected to be used by the program's users. Normally that
means that scroll bars will not be displayed when executed by the end
user.
Many developers will compile programs where they expect to have a
vertical scrollbar but not a horizontal scrollbar, or vice-versa.
That creates a scenario for a possible problem. The width of the
scroll bars may vary from one video board driver to another. This is
not under the control of Progress. If a screen is designed to
have only one scrollbar and then the executing system has wider
scrollbars than the compiling system, a second scrollbar will
be displayed by Windows.
To check the size of the scrollbars on any Windows 95, Windows 98
or Windows NT 4.0 system:
Right-click on any empty area on the Desktop
Choose Properties
Choose Apperance
Click on the ITEM selection box.
Select SCROLLBAR
You can then see the present size of the scrollbar and you can
change it if you wish. The standard Windows default is a width of
16 pixels although some video board drivers will change that setting
to something else.