Mercurial > sdl-ios-xcode
view docs/man3/SDL_JoystickGetHat.3 @ 4392:2b8c1aea633b SDL-1.2
Fixed bug #898
Jeremiah Morris 2009-12-09 16:07:17 PST
No-op GlobalToLocal translations in fullscreen mode
On my MacBook Pro running 10.6, I noticed a small upward bias on mouse movement
in a fullscreen SDL application. The app uses WarpCursor and GetMouseState in a
loop to measure relative movement. I tracked it down to NSWindow's
convertBaseToScreen: routine, which added a 2-pixel offset on the Y coordinate
instead of the expected (+0,+0) translation.
In fullscreen mode, QZ_PrivateWarpCursor() does not translate the desired
position through QZ_PrivateGlobalToLocal() before passing it to the Core
Graphics system. However, QZ_GetMouseLocation() does call the reverse
QZ_PrivateLocalToGlobal() even in fullscreen mode. This asymmetry caused
problems each time the mouse was moved.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 11 Dec 2009 15:31:37 +0000 |
| parents | 1238da4a7112 |
| children |
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.TH "SDL_JoystickGetHat" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_JoystickGetHat \- Get the current state of a joystick hat .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBUint8 \fBSDL_JoystickGetHat\fP\fR(\fBSDL_Joystick *joystick, int hat\fR); .SH "DESCRIPTION" .PP SDL_JoystickGetHat returns the current state of the given \fBhat\fR on the given \fBjoystick\fR\&. .SH "RETURN VALUE" .PP The current state is returned as a Uint8 which is defined as an OR\&'d combination of one or more of the following .IP "" 10 \fBSDL_HAT_CENTERED\fP .IP "" 10 \fBSDL_HAT_UP\fP .IP "" 10 \fBSDL_HAT_RIGHT\fP .IP "" 10 \fBSDL_HAT_DOWN\fP .IP "" 10 \fBSDL_HAT_LEFT\fP .IP "" 10 \fBSDL_HAT_RIGHTUP\fP .IP "" 10 \fBSDL_HAT_RIGHTDOWN\fP .IP "" 10 \fBSDL_HAT_LEFTUP\fP .IP "" 10 \fBSDL_HAT_LEFTDOWN\fP .SH "SEE ALSO" .PP \fI\fBSDL_JoystickNumHats\fP\fR .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00