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Added SDL_CleanupEvent()

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This is used to free any dynamically allocated memory in events.
This commit is contained in:
Sam Lantinga
2023-11-04 00:55:55 -07:00
parent c4bf05fd9d
commit 7e445da569
20 changed files with 146 additions and 232 deletions
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docs/README-migration.md
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@@ -298,6 +298,8 @@ The timestamp_us member of the sensor events has been renamed sensor_timestamp a
You should set the event.common.timestamp field before passing an event to SDL_PushEvent(). If the timestamp is 0 it will be filled in with SDL_GetTicksNS().
You should call SDL_CleanupEvent() after handling SDL_EVENT_DROP_FILE, SDL_EVENT_DROP_TEXT, SDL_EVENT_SYSWM, and SDL_EVENT_TEXT_EDITING. This cleans up the memory associated with those events, and you no longer have to free the data yourself.
Mouse events use floating point values for mouse coordinates and relative motion values. You can get sub-pixel motion depending on the platform and display scaling.
The SDL_DISPLAYEVENT_* events have been moved to top level events, and SDL_DISPLAYEVENT has been removed. In general, handling this change just means checking for the individual events instead of first checking for SDL_DISPLAYEVENT and then checking for display events. You can compare the event >= SDL_EVENT_DISPLAY_FIRST and <= SDL_EVENT_DISPLAY_LAST if you need to see whether it's a display event.
@@ -555,6 +557,7 @@ The following hints have been removed:
* SDL_HINT_VIDEO_X11_FORCE_EGL - use SDL_HINT_VIDEO_FORCE_EGL instead
* SDL_HINT_VIDEO_X11_XINERAMA - Xinerama no longer supported by the X11 backend
* SDL_HINT_VIDEO_X11_XVIDMODE - Xvidmode no longer supported by the X11 backend
* SDL_HINT_IME_SUPPORT_EXTENDED_TEXT - the normal text editing event has dynamically allocated text if needed, and should be freed with SDL_CleanupEvent() when processed
* Renamed hints SDL_HINT_VIDEODRIVER and SDL_HINT_AUDIODRIVER to SDL_HINT_VIDEO_DRIVER and SDL_HINT_AUDIO_DRIVER
* Renamed environment variables SDL_VIDEODRIVER and SDL_AUDIODRIVER to SDL_VIDEO_DRIVER and SDL_AUDIO_DRIVER