I have a VB.NET application that will run on an IBM ThinkPad tablet
PC. I can easily trap the DisplaySettingsChangedEvent to determine
when the user swiches from portrait to landscape mode. I'm trying to
work out the logic neeed to reposition/resize the controls on a form
when the orientation changes. It would seem that you could just
determine the ratio of the height/width when you change modes and
multiply the Top, Left, Width, and Height properties of all the
controls. Then, when switching back, you could apply the inverse of
the height/width ratio to restore the original values. This works well
in theory but has some issues in practice. For example, if I reduce a
label width to 75% of its starting value, text could be cut off.
TextBoxes and ComboBoxes won't size at all if the control is smaller
that the Text property and thus adjacent controls will not be
positioned properly in relation to it. Can this be done without taking
into account portrait mode when developing the screen landscape?

This is not a new problem so I was wondering what the best solution is
to handle this. Any tablet PC application would have this issue. Any
suggestions?

Thanks

Carl

Please avoid cross-posting in several groups without determing where the
answers shall appear.
X-posting needs setting a F'up2" (follow-up-to).

Rainald

SetonSoftware schrieb:

> I have a VB.NET application that will run on an IBM ThinkPad tablet
> PC. I can easily trap the DisplaySettingsChangedEvent to determine
> when the user swiches from portrait to landscape mode. I'm trying to
> work out the logic neeed to reposition/resize the controls on a form
> when the orientation changes. It would seem that you could just
> determine the ratio of the height/width when you change modes and
> multiply the Top, Left, Width, and Height properties of all the
> controls. Then, when switching back, you could apply the inverse of
> the height/width ratio to restore the original values. This works
> well in theory but has some issues in practice. For example, if I
> reduce a label width to 75% of its starting value, text could be
> cut off. TextBoxes and ComboBoxes won't size at all if the control
> is smaller that the Text property and thus adjacent controls will
> not be positioned properly in relation to it. Can this be done
> without taking into account portrait mode when developing the
> screen landscape?
>
> This is not a new problem so I was wondering what the best solution
> is to handle this. Any tablet PC application would have this issue.
> Any suggestions?
>
> Thanks
>
> Carl