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| >SDL_MouseMotionEvent</H1 |
| ><DIV |
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| NAME="AEN4079" |
| ></A |
| ><H2 |
| >Name</H2 |
| >SDL_MouseMotionEvent -- Mouse motion event structure</DIV |
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| NAME="AEN4082" |
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| ><H2 |
| >Structure Definition</H2 |
| ><PRE |
| CLASS="PROGRAMLISTING" |
| >typedef struct{ |
| Uint8 type; |
| Uint8 state; |
| Uint16 x, y; |
| Sint16 xrel, yrel; |
| } SDL_MouseMotionEvent;</PRE |
| ></DIV |
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| ><H2 |
| >Structure Data</H2 |
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| ><TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >type</I |
| ></TT |
| ></TD |
| ><TD |
| ALIGN="LEFT" |
| VALIGN="TOP" |
| ><TT |
| CLASS="LITERAL" |
| >SDL_MOUSEMOTION</TT |
| ></TD |
| ></TR |
| ><TR |
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| VALIGN="TOP" |
| ><TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >state</I |
| ></TT |
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| VALIGN="TOP" |
| >The current button state</TD |
| ></TR |
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| ><TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >x</I |
| ></TT |
| >, <TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >y</I |
| ></TT |
| ></TD |
| ><TD |
| ALIGN="LEFT" |
| VALIGN="TOP" |
| >The X/Y coordinates of the mouse</TD |
| ></TR |
| ><TR |
| ><TD |
| ALIGN="LEFT" |
| VALIGN="TOP" |
| ><TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >xrel</I |
| ></TT |
| >, <TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >yrel</I |
| ></TT |
| ></TD |
| ><TD |
| ALIGN="LEFT" |
| VALIGN="TOP" |
| >Relative motion in the X/Y direction</TD |
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| ><DIV |
| CLASS="REFSECT1" |
| ><A |
| NAME="AEN4109" |
| ></A |
| ><H2 |
| >Description</H2 |
| ><P |
| ><SPAN |
| CLASS="STRUCTNAME" |
| >SDL_MouseMotionEvent</SPAN |
| > is a member of the <A |
| HREF="sdlevent.html" |
| ><SPAN |
| CLASS="STRUCTNAME" |
| >SDL_Event</SPAN |
| ></A |
| > union and is used when an event of type <TT |
| CLASS="LITERAL" |
| >SDL_MOUSEMOTION</TT |
| > is reported.</P |
| ><P |
| >Simply put, a <TT |
| CLASS="LITERAL" |
| >SDL_MOUSEMOTION</TT |
| > type event occurs when a user moves the mouse within the application window or when <A |
| HREF="sdlwarpmouse.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_WarpMouse</TT |
| ></A |
| > is called. Both the absolute (<TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >x</I |
| ></TT |
| > and <TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >y</I |
| ></TT |
| >) and relative (<TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >xrel</I |
| ></TT |
| > and <TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >yrel</I |
| ></TT |
| >) coordinates are reported along with the current button states (<TT |
| CLASS="STRUCTFIELD" |
| ><I |
| >state</I |
| ></TT |
| >). The button state can be interpreted using the <TT |
| CLASS="LITERAL" |
| >SDL_BUTTON</TT |
| > macro (see <A |
| HREF="sdlgetmousestate.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_GetMouseState</TT |
| ></A |
| >).</P |
| ><P |
| >If the cursor is hidden (<A |
| HREF="sdlshowcursor.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_ShowCursor</TT |
| >(0)</A |
| >) and the input is grabbed (<A |
| HREF="sdlwmgrabinput.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_WM_GrabInput</TT |
| >(SDL_GRAB_ON)</A |
| >), 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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| >See Also</H2 |
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| ><A |
| HREF="sdlevent.html" |
| ><SPAN |
| CLASS="STRUCTNAME" |
| >SDL_Event</SPAN |
| ></A |
| >, |
| <A |
| HREF="sdlmousebuttonevent.html" |
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| CLASS="STRUCTNAME" |
| >SDL_MouseButtonEvent</SPAN |
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