How to Dynamically Adjust Window Size Based on Content

[DimaTepliakov]

Hi everyone,

I’m working on a project where the window size automatically adjusts based on the content inside and it works perfectly in that case. However, I haven’t been able to replicate this behavior in other projects.
As a workaround, I’ve been setting an initial window size based on the largest expected content, but I’d prefer to achieve true dynamic resizing.
Could someone explain what needs to be set for this behavior to work? If possible, a simple example would be very helpful.

I’ve attached a short video demonstrating the behavior I’m aiming for from my working project:

auto_win_resizing.mp4

Thanks in advance!

[dipeshSam]

You need to use pack() or grid() on the widget you want to resize automatically. It's better to use one frame as a root and pack it to the main root window. All other items will be placed in that frame. Item contents will resize the frame and frame will resize the window, mindful placement of the items is necessary. In the meantime, I'll post the sample code and output.

Regards.

[DimaTepliakov]

I finally found what was causing the issue.

In the projects where automatic window resizing based on the widgets didn't work, I had the following function call:

self.after(1000, self.rescale)
This function was doing the following:

def rescale(self):
 ctk.set_widget_scaling(self.scaling)
 ctk.set_window_scaling(self.scaling)

Once I commented out that line, the auto-resizing behavior worked perfectly.