view docs/html/eventstructures.html @ 1258:b2283b0ded26

Date: Thu, 19 Jan 2006 20:02:29 +0200 From: Vassilis Virvilis <vasvir@iit.demokritos.gr> Subject: [SDL] Request: Please reconsider adding tag in SDL_Event Hi, Patch in question: --- include/SDL_events.h 20 Aug 2004 18:57:01 -0000 1.11 +++ include/SDL_events.h 19 Jan 2006 17:35:09 -0000 @@ -214,7 +214,7 @@ } SDL_SysWMEvent; /* General event structure */ -typedef union { +typedef union SDL_Event { Uint8 type; SDL_ActiveEvent active; SDL_KeyboardEvent key; Reasoning: ---------- 1) Allows forward declaration of the SDL_Event union in C++. Please note that in plain C it is possible to forward declare it. 2) Forward declaration is good because it allows encapsulation. It hides the specific implementation and does not necessarily exposes SDL staff to my appication's namespace 3) It can't harm plain C because tags are living in a different namespace than typenames 4) It is already done like this in other places in SDL. Check for example SDL_KeySym, and SDL_.*Event structures. 5) Right now I have to include SDL/event.h from a C++ header file. See 2)
author Sam Lantinga <slouken@libsdl.org>
date Fri, 20 Jan 2006 13:07:25 +0000
parents 355632dca928
children
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>SDL Event Structures.</H1
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><DT
><A
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>SDL_Event</A
>&nbsp;--&nbsp;General event structure</DT
><DT
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>SDL_ActiveEvent</A
>&nbsp;--&nbsp;Application visibility event structure</DT
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>SDL_KeyboardEvent</A
>&nbsp;--&nbsp;Keyboard event structure</DT
><DT
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>SDL_MouseMotionEvent</A
>&nbsp;--&nbsp;Mouse motion event structure</DT
><DT
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>SDL_MouseButtonEvent</A
>&nbsp;--&nbsp;Mouse button event structure</DT
><DT
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>SDL_JoyAxisEvent</A
>&nbsp;--&nbsp;Joystick axis motion event structure</DT
><DT
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>SDL_JoyButtonEvent</A
>&nbsp;--&nbsp;Joystick button event structure</DT
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>SDL_JoyHatEvent</A
>&nbsp;--&nbsp;Joystick hat position change event structure</DT
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>SDL_JoyBallEvent</A
>&nbsp;--&nbsp;Joystick trackball motion event structure</DT
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>SDL_ResizeEvent</A
>&nbsp;--&nbsp;Window resize event structure</DT
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>SDL_ExposeEvent</A
>&nbsp;--&nbsp;Quit requested event</DT
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>SDL_SysWMEvent</A
>&nbsp;--&nbsp;Platform-dependent window manager event.</DT
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>SDL_UserEvent</A
>&nbsp;--&nbsp;A user-defined event type</DT
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>SDL_QuitEvent</A
>&nbsp;--&nbsp;Quit requested event</DT
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>SDL_keysym</A
>&nbsp;--&nbsp;Keysym structure</DT
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>SDLKey</A
>&nbsp;--&nbsp;Keysym definitions.</DT
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