Substract Windows taskbar height when calculating dimensions for pop-up windows

Operating System Info

Windows 10

Other OS

No response

OBS Studio Version

Other

OBS Studio Version (Other)

27.1.3

OBS Studio Log URL

n/a

OBS Studio Crash Log URL

No response

Expected Behavior

When creating a new dialogue window, such as Filters, subtract the taskbar's height from the initial height of the created window to avoid parts of window being overlapped.

Current Behavior

When opening a Filters dialog window at low resolutions (i.e. 1366x768 or lower), the Filters dialog tries to occupy the entire vertical space, and so the control buttons at the bottom get overlapped by the taskbar, rendering them unusable until a manual resize is done. This confuses the user.

Steps to Reproduce

1. Set display res to 1366x768 or lower, with DPI scaling of 125% or higher
2. Open any Filters dialogue window

Anything else we should know?

No response

Start by locating the Windows code that creates the Filters dialog and determines its initial dimensions; the issue names no file or test. Reproduce at 1366x768 or lower with 125% or higher DPI scaling, then verify that the dialog's bottom controls remain usable without manual resizing.