Mercurial > sdl-ios-xcode
view docs/man3/SDL_MouseButtonEvent.3 @ 3191:91b335df6fc8
Fixed bug #750
Since many different event structures include windowID it should be placed near
the beginning of the structure (preferably right after type) so it's position
is the same between different events.
This is to avoid code like this:
if (event.type == SDL_WINDOWEVENT)
win = event.window.windowID;
else if ((SDL_EVENTMASK(event.type) & SDL_KEYEVENTMASK) != 0)
win = event.key.windowID;
else if (event.type == SDL_TEXTINPUT)
win = event.text.windowID;
else if (event.type == SDL_MOUSEMOTION)
win = event.motion.windowID;
else if ((SDL_EVENTMASK(event.type) & (SDL_MOUBUTTONDOWNMASK |
SDL_MOUBUTTONUPMASK)) != 0)
win = event.button.windowID;
else if (event.type == SDL_MOUSEWHEEL)
win = event.wheel.windowID;
...
in favor of:
win = event.window.windowID;
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 10 Jun 2009 14:00:21 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
line wrap: on
line source
.TH "SDL_MouseButtonEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_MouseButtonEvent \- Mouse button event structure .SH "STRUCTURE DEFINITION" .PP .nf \f(CWtypedef struct{ Uint8 type; Uint8 button; Uint8 state; Uint16 x, y; } SDL_MouseButtonEvent;\fR .fi .PP .SH "STRUCTURE DATA" .TP 20 \fBtype\fR \fBSDL_MOUSEBUTTONDOWN\fP or \fBSDL_MOUSEBUTTONUP\fP .TP 20 \fBbutton\fR The mouse button index (SDL_BUTTON_LEFT, SDL_BUTTON_MIDDLE, SDL_BUTTON_RIGHT) .TP 20 \fBstate\fR \fBSDL_PRESSED\fP or \fBSDL_RELEASED\fP .TP 20 \fBx\fR, \fBy\fR The X/Y coordinates of the mouse at press/release time .SH "DESCRIPTION" .PP \fBSDL_MouseButtonEvent\fR is a member of the \fI\fBSDL_Event\fR\fR union and is used when an event of type \fBSDL_MOUSEBUTTONDOWN\fP or \fBSDL_MOUSEBUTTONUP\fP is reported\&. .PP When a mouse button press or release is detected then number of the button pressed (from 1 to 255, with 1 usually being the left button and 2 the right) is placed into \fBbutton\fR, the position of the mouse when this event occured is stored in the \fBx\fR and the \fBy\fR fields\&. Like \fI\fBSDL_KeyboardEvent\fR\fR, information on whether the event was a press or a release event is stored in both the \fBtype\fR and \fBstate\fR fields, but this should be obvious\&. .SH "SEE ALSO" .PP \fI\fBSDL_Event\fR\fR, \fI\fBSDL_MouseMotionEvent\fR\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59