Different resizing behaviour on 120 dpi screen

[Guest Jack]

Hello,

I am testing my app look and resizing.

When testing it on 120 dpi screen the behaviour is as follows:

1.

dragging the bottom right corner diagonally upwards or down it moves window

outline only and when mouse is released the form fills the outline.

In 96 dpi there is not outline but all form borders resize with the mouse

movement.

 

It is not my app only behaviour but all other programs behaviour the same

way. I believe it is a video driver issue.

 

But

2.

120 dpi:

when dragging mouse fast and on the longer distance it causes the resized

form being not resized proportionally, but doing it slower and in smaller

steps resize is proportional. This happens to my app only.

 

96 dpi has not that problem.

 

Any thoughts on that?

Jack