SDL_WINDOWEVENTS on Windows

SDL Development
#1

Hi!

I’ve encountered the following surprising behavior on Windows 7 using
the MinGW-devel downloads for SDL 2.0.3:
When I grab a window and move it out of the visible desktop area and
back again I don’t get any events until I release the mouse button, but
then I get a bunch (I’m particularly interested in
SDL_WINDOWEVENT_EXPOSED events). This is unexpected for me, and it
works differently on Linux (using the SDL 2.0.2 packages in Ubuntu)
where I continuously receive SDL_WINDOWEVENT_MOVED and
SDL_WINDOWEVENT_EXPOSED events. Is this intended behavior, and can
anybody reproduce this, or have I done something wrong? I’m sorry if
this is a known issue …

Btw., I had the winapifamily.h-error mentioned in a recent post, and
copying the SDL_platform.h from the repository solved the issue for me.

Thanks,
Philipp

#2

Unfortunately, Windows blocks the thread pumping for the events inside the WinAPI code when you drag or resize the window.

The problem isn?t in SDL?s own code directly, but a workaround might be applied if it?s good enough: https://bugzilla.libsdl.org/show_bug.cgi?id=2077On May 1, 2014, at 9:37 PM, Philipp Janda wrote:

Hi!

I’ve encountered the following surprising behavior on Windows 7 using the MinGW-devel downloads for SDL 2.0.3:
When I grab a window and move it out of the visible desktop area and back again I don’t get any events until I release the mouse button, but then I get a bunch (I’m particularly interested in SDL_WINDOWEVENT_EXPOSED events). This is unexpected for me, and it works differently on Linux (using the SDL 2.0.2 packages in Ubuntu) where I continuously receive SDL_WINDOWEVENT_MOVED and SDL_WINDOWEVENT_EXPOSED events. Is this intended behavior, and can anybody reproduce this, or have I done something wrong? I’m sorry if this is a known issue …

Btw., I had the winapifamily.h-error mentioned in a recent post, and copying the SDL_platform.h from the repository solved the issue for me.

Thanks,
Philipp

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#3

Am 02.05.2014 02:49 schr?bte Alex Szpakowski:

Unfortunately, Windows blocks the thread pumping for the events inside the WinAPI code when you drag or resize the window.

The problem isn?t in SDL?s own code directly, but a workaround might be applied if it?s good enough: https://bugzilla.libsdl.org/show_bug.cgi?id=2077

Ok, thanks!

Philipp>

On May 1, 2014, at 9:37 PM, Philipp Janda <@Philipp_Janda> wrote:

Hi!

I’ve encountered the following surprising behavior on Windows 7 using the MinGW-devel downloads for SDL 2.0.3:
When I grab a window and move it out of the visible desktop area and back again I don’t get any events until I release the mouse button, but then I get a bunch (I’m particularly interested in SDL_WINDOWEVENT_EXPOSED events). This is unexpected for me, and it works differently on Linux (using the SDL 2.0.2 packages in Ubuntu) where I continuously receive SDL_WINDOWEVENT_MOVED and SDL_WINDOWEVENT_EXPOSED events. Is this intended behavior, and can anybody reproduce this, or have I done something wrong? I’m sorry if this is a known issue …

Btw., I had the winapifamily.h-error mentioned in a recent post, and copying the SDL_platform.h from the repository solved the issue for me.

Thanks,
Philipp