view docs/man3/SDL_ExposeEvent.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_ExposeEvent" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_ExposeEvent \- Quit requested event
.SH "STRUCTURE DEFINITION"
.PP
.nf
\f(CWtypedef struct{
  Uint8 type
} SDL_ExposeEvent;\fR
.fi
.PP
.SH "STRUCTURE DATA"
.TP 20
\fBtype\fR
\fBSDL_VIDEOEXPOSE\fP
.SH "DESCRIPTION"
.PP
\fBSDL_ExposeEvent\fR is a member of the \fI\fBSDL_Event\fR\fR union and is used whan an event of type \fBSDL_VIDEOEXPOSE\fP is reported\&.
.PP
A VIDEOEXPOSE event is triggered when the screen has been modified outside of the application, usually by the window manager and needs to be redrawn\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_Event\fR\fR, \fI\fBSDL_SetEventFilter\fP\fR
.\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00