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Holding down shift while moving the mouse's scrollwheel on MacOS X makes the

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OS report these are "horizontal scrollwheel" events, which confuses gaming
 apps in several legitimate conditions. Now all scrollwheel events are made
 to look vertical when passed to the app.

Patch by John Knottenbelt.

 http://www.libsdl.org/pipermail/sdl/2005-March/067978.html
This commit is contained in:
Ryan C. Gordon
2005-04-17 10:32:41 +00:00
parent 64e340141a
commit 0374a15398
1 changed files with 3 additions and 2 deletions
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5
src/video/quartz/SDL_QuartzEvents.m
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@@ -900,10 +900,11 @@ void QZ_PumpEvents (_THIS)
break;
case NSScrollWheel:
if ( isInGameWin ) {
float dy;
float dy, dx;
Uint8 button;
dy = [ event deltaY ];
if ( dy > 0.0 ) /* Scroll up */
dx = [ event deltaX ];
if ( dy > 0.0 || dx > 0.0 ) /* Scroll up */
button = SDL_BUTTON_WHEELUP;
else /* Scroll down */
button = SDL_BUTTON_WHEELDOWN;