Mercurial > sdl-ios-xcode
view docs/man3/SDL_GetError.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_GetError" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_GetError \- Get SDL error string .SH "SYNOPSIS" .PP \fB#include "SDL/SDL\&.h" .sp \fBchar *\fBSDL_GetError\fP\fR(\fBvoid\fR); .SH "DESCRIPTION" .PP \fBSDL_GetError\fP returns a NULL terminated string containing information about the last internal SDL error\&. .SH "RETURN VALUE" .PP \fBSDL_GetError\fP returns a string containing the last error\&. .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00