Changing window size

Player will change its window size in case if any of following events will happen:

But, different people endure such behavior in different ways. Some people don't like that player goes fullscreen on movie load, others - don't black bars that appear when window size changed manually (don't get confused with black bars that are inalienable part of a video frame), and some one want to align player window exactly on 25% of available monitor space.

So, this is why Light Alloy have extensive ways for precise and/or automate window positioning and definition of it's boundaries.

On player start you can expand it on fullscreen, start it as is or with default size. Also, it's unnessasry to move it to center.

Options to change window size on file load combined with Original size button. As you can see, there is a lot you can to tweak. It is worth noting, that if you disable "Resize to movie bounds", when you press Original size button will be removed black bars.

You are ardent hater of black bars, you can ask player to "respect video aspect ratio when changing window size" (Preferences \ Interface \ Apperance tab, available in Expert Mode view).

On window size changing by mouse Light Alloy will take in consider video aspect ratio, respectively, it won't allow black bars. But, this option have some restricts and flaws, in particullary you cannot use "don't allow window be moved beyond work area of current monitor" option with it. This option not recommended to use, but, some users could find it handy.

For those who need absolute precise when changing window size, please take a look on "Alternate hotkeys mode" (Preferences \ Keyboard \ Alternative tab).