Hello,
how can i keep the proportions -> width:height of a window on a window resizing-event?
Thanks
Compute the scale factor (use actual width and target width) and apply that value to Window1.Width and Window1.Height.
i did but get an stack overflow exception
[code]dim w,h,wtarget,htarget as Double
w=window1.Width
h=Window1.Height
dim factor as Double = w/h
wtarget=wfactor
htarget=hfactor
window1.Width=wtarget
window1.Height=htarget
[/code]
Strange I use that trick to resize images and draw them in Canvas
I try and come back.
You do not tell where (in which event) you execute the code
Do you do that in the Resized Event ?
in window.resizing-event because it should proportionally live resize
Thats it: I moved it in a pushbutton and it works fine.
Now, the questio is: why do you apply a code resize in the users back ?
In other words, what your interface is that needs that kind of resize ?
There may be a different way to achieve that goal, maybe.
How many times a second this event is fired ?
(no, it’s a rethorical question only).
[quote=436468:@Marco Winster]window1.Width=wtarget
window1.Height=htarget[/quote]
I’d not recommend to do this in the Resizing Event 
Nor Resized Event, thus my test in a PushButton, then the question about why wanting to do so.
as i wrote, live resize a window proportionally…
Yes, I understand that, but what is your motivation to do that; why the window size have to be changed after the user does it ?
Example:
Do you have a Canvas with an image that have to be resized proportionally ?
I may not be clear enough:
doing a code resize while the window is resizing resized generate the stack overflow exception. So, uness using a timer / a thread / something to delegate the moment to execute the code, you will always get a stack overflow exception.
no, there is a custom movie player on it and i don’t want black bars so it has to resize proportionally…
If you do your code in the Resizing event, this will trigger a new Resizing event. Therefore, you get the StackOverflow. Try to move your code into the Resized event. Or manage your Resizing event with a boolean property.
Yes !
Apply the resize there and make to window resize using the MoviePlayer Width/Height.
Sorry not clear, but I hope you understand what I mean.
Same trouble there.
its that simple (0.666 is the ratio window height / window width)
dim w as integer=self.Width
self.Height=w*0.666
works fine in resizing-event!