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365 lines
4.8 KiB
365 lines
4.8 KiB
<HTML |
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>SDL_MouseMotionEvent</TITLE |
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>SDL Library Documentation</TH |
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><H1 |
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><A |
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NAME="SDLMOUSEMOTIONEVENT" |
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></A |
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>SDL_MouseMotionEvent</H1 |
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><DIV |
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CLASS="REFNAMEDIV" |
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><A |
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NAME="AEN4079" |
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></A |
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><H2 |
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>Name</H2 |
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>SDL_MouseMotionEvent -- Mouse motion event structure</DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN4082" |
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></A |
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><H2 |
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>Structure Definition</H2 |
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><PRE |
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CLASS="PROGRAMLISTING" |
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>typedef struct{ |
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Uint8 type; |
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Uint8 state; |
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Uint16 x, y; |
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Sint16 xrel, yrel; |
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} SDL_MouseMotionEvent;</PRE |
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></DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN4085" |
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></A |
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><H2 |
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>Structure Data</H2 |
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><DIV |
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CLASS="INFORMALTABLE" |
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><A |
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NAME="AEN4087" |
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></A |
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><P |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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><TT |
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CLASS="STRUCTFIELD" |
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><I |
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>type</I |
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></TT |
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></TD |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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><TT |
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CLASS="LITERAL" |
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>SDL_MOUSEMOTION</TT |
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></TD |
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></TR |
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><TR |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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><TT |
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CLASS="STRUCTFIELD" |
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><I |
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>state</I |
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></TT |
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></TD |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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>The current button state</TD |
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></TR |
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><TR |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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><TT |
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CLASS="STRUCTFIELD" |
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><I |
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>x</I |
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></TT |
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>, <TT |
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CLASS="STRUCTFIELD" |
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><I |
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>y</I |
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></TT |
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></TD |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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>The X/Y coordinates of the mouse</TD |
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></TR |
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><TR |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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><TT |
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CLASS="STRUCTFIELD" |
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><I |
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>xrel</I |
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></TT |
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>, <TT |
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CLASS="STRUCTFIELD" |
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><I |
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>yrel</I |
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></TT |
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></TD |
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><TD |
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ALIGN="LEFT" |
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VALIGN="TOP" |
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>Relative motion in the X/Y direction</TD |
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></TR |
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></TBODY |
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></TABLE |
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><P |
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></P |
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></DIV |
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></DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN4109" |
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></A |
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><H2 |
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>Description</H2 |
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><P |
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><SPAN |
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CLASS="STRUCTNAME" |
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>SDL_MouseMotionEvent</SPAN |
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> is a member of the <A |
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HREF="sdlevent.html" |
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><SPAN |
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CLASS="STRUCTNAME" |
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>SDL_Event</SPAN |
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></A |
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> union and is used when an event of type <TT |
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CLASS="LITERAL" |
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>SDL_MOUSEMOTION</TT |
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> is reported.</P |
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><P |
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>Simply put, a <TT |
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CLASS="LITERAL" |
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>SDL_MOUSEMOTION</TT |
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> type event occurs when a user moves the mouse within the application window or when <A |
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HREF="sdlwarpmouse.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_WarpMouse</TT |
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></A |
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> is called. Both the absolute (<TT |
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CLASS="STRUCTFIELD" |
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><I |
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>x</I |
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></TT |
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> and <TT |
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CLASS="STRUCTFIELD" |
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><I |
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>y</I |
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></TT |
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>) and relative (<TT |
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CLASS="STRUCTFIELD" |
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><I |
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>xrel</I |
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></TT |
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> and <TT |
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CLASS="STRUCTFIELD" |
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><I |
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>yrel</I |
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></TT |
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>) coordinates are reported along with the current button states (<TT |
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CLASS="STRUCTFIELD" |
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><I |
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>state</I |
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></TT |
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>). The button state can be interpreted using the <TT |
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CLASS="LITERAL" |
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>SDL_BUTTON</TT |
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> macro (see <A |
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HREF="sdlgetmousestate.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_GetMouseState</TT |
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></A |
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>).</P |
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><P |
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>If the cursor is hidden (<A |
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HREF="sdlshowcursor.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_ShowCursor</TT |
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>(0)</A |
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>) and the input is grabbed (<A |
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HREF="sdlwmgrabinput.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_WM_GrabInput</TT |
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>(SDL_GRAB_ON)</A |
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>), then the mouse will give relative motion events even when the cursor reaches the edge fo the screen. This is currently only implemented on Windows and Linux/Unix-a-likes.</P |
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></DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN4133" |
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></A |
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><H2 |
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>See Also</H2 |
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><P |
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><A |
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HREF="sdlevent.html" |
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><SPAN |
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CLASS="STRUCTNAME" |
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>SDL_Event</SPAN |
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></A |
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>, |
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<A |
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HREF="sdlmousebuttonevent.html" |
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><SPAN |
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CLASS="STRUCTNAME" |
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>SDL_MouseButtonEvent</SPAN |
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></A |
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WIDTH="33%" |
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>Prev</A |
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>Home</A |
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>Next</A |
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ALIGN="left" |
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>SDL_KeyboardEvent</TD |
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WIDTH="34%" |
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HREF="eventstructures.html" |
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>Up</A |
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>SDL_MouseButtonEvent</TD |
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