Mercurial > sdl-ios-xcode
view docs/man3/SDL_PushEvent.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_PushEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_PushEvent \- Pushes an event onto the event queue .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_PushEvent\fP\fR(\fBSDL_Event *event\fR); .SH "DESCRIPTION" .PP The event queue can actually be used as a two way communication channel\&. Not only can events be read from the queue, but the user can also push their own events onto it\&. \fBevent\fR is a pointer to the event structure you wish to push onto the queue\&. .PP .RS \fBNote: .PP Pushing device input events onto the queue doesn\&'t modify the state of the device within SDL\&. .RE .SH "RETURN VALUE" .PP Returns \fB0\fR on success or \fB-1\fR if the event couldn\&'t be pushed\&. .SH "EXAMPLES" .PP See \fI\fBSDL_Event\fR\fR\&. .SH "SEE ALSO" .PP \fI\fBSDL_PollEvent\fP\fR, \fI\fBSDL_PeepEvents\fP\fR, \fI\fBSDL_Event\fR\fR .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59