bug#19972: Font size change doesn't update (window-total-width)

[martin rudalics]

>> There should be one for a normally sized frame.
>
> We don't do anything with it, probably because the frame was already
> resized.

Precisely.

> IOW, we don't wait with a resize until we get a notification, but
> instead resize the frame itself, and then might resize again when we
> receive WM_SIZE.  Question: why not wait for WM_SIZE, and only resize
> after it arrives?  That would emulate better what X does, and also
> prevent the second resize.  No?

Usually there's no second resize because Windows does what we asked for.
And the first resize is here to fix bug#16028.

>> When I asked you back then whether we could implement something similar
>> to the X code on Windows you told me that Windows doesn't have anything
>> comparable to ConfigureNotify so I didn't pursue the idea any further.
>
> I don't remember saying that (and don't know X well enough to make
> such assertions to begin with), but in any case, you just explained
> that I was wrong, and there is a Windows message equivalent to
> ConfigureNotify.

Which?

martin