Mercurial > sdl-ios-xcode
view docs/man3/SDL_PeepEvents.3 @ 816:428f688f2ad2
Date: Fri, 13 Feb 2004 17:03:16 +0100
From: Max Horn
Subject: Modifier key fix
The internal modifier state can get out of sync with reality. To
trigger this, do for example this:
1) Launch an SDL app
2) Alt-click on the desktop (this will hide the SDL app).
3) Bring the SDL app back to the front
4) SDL will still think alt is pressed (and as such will treat left
clicks like middle clicks). If you press and release alt, it'll be fine
again.
The attached patch cures this by rechecking the modifier state whenever
we process an event.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 13 Feb 2004 17:57:16 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_PeepEvents" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_PeepEvents\- Checks the event queue for messages and optionally returns them\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_PeepEvents\fP\fR(\fBSDL_Event *events, int numevents, SDL_eventaction action, Uint32 mask\fR); .SH "DESCRIPTION" .PP Checks the event queue for messages and optionally returns them\&. .PP If \fBaction\fR is \fBSDL_ADDEVENT\fP, up to \fBnumevents\fR events will be added to the back of the event queue\&. .PP If \fBaction\fR is \fBSDL_PEEKEVENT\fP, up to \fBnumevents\fR events at the front of the event queue, matching \fI\fBmask\fR\fR, will be returned and will not be removed from the queue\&. .PP If \fBaction\fR is \fBSDL_GETEVENT\fP, up to \fBnumevents\fR events at the front of the event queue, matching \fI\fBmask\fR\fR, will be returned and will be removed from the queue\&. .PP This function is thread-safe\&. .SH "RETURN VALUE" .PP This function returns the number of events actually stored, or \fB-1\fR if there was an error\&. .SH "SEE ALSO" .PP \fI\fBSDL_Event\fR\fR, \fI\fBSDL_PollEvent\fP\fR, \fI\fBSDL_PushEvent\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59