Mercurial > sdl-ios-xcode
view docs/html/sdlcreatecursor.html @ 4179:d7294b7c732d SDL-1.2
Date: Fri, 24 Apr 2009 17:47:07 +0200
From: Stefan Klug
Subject: Re: [SDL] SVN doesn't compile for wince
the patch applied for Revision 4483 was seemingly not checked for side
effects.
It broke the WinCE build.
The attached patch should fix these problems. I'm not using SDL 1.2 on
CE anymore, and therefore haven't tested the patch... but at least it
compiles ;-)
Regards Stefan
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Thu, 07 May 2009 12:40:16 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_CreateCursor</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_WarpMouse" HREF="sdlwarpmouse.html"><LINK REL="NEXT" TITLE="SDL_FreeCursor" HREF="sdlfreecursor.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlwarpmouse.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlfreecursor.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLCREATECURSOR" ></A >SDL_CreateCursor</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN2487" ></A ><H2 >Name</H2 >SDL_CreateCursor -- Creates a new mouse cursor.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN2490" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN2491" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >SDL_Cursor *<B CLASS="FSFUNC" >SDL_CreateCursor</B ></CODE >(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2497" ></A ><H2 >Description</H2 ><P >Create a cursor using the specified <TT CLASS="PARAMETER" ><I >data</I ></TT > and <TT CLASS="PARAMETER" ><I >mask</I ></TT > (in MSB format). The cursor width must be a multiple of 8 bits.</P ><P >The cursor is created in black and white according to the following: <DIV CLASS="INFORMALTABLE" ><A NAME="AEN2503" ></A ><P ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><THEAD ><TR ><TH ALIGN="LEFT" VALIGN="TOP" >Data / Mask</TH ><TH ALIGN="LEFT" VALIGN="TOP" >Resulting pixel on screen</TH ></TR ></THEAD ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" >0 / 1</TD ><TD ALIGN="LEFT" VALIGN="TOP" >White</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" >1 / 1</TD ><TD ALIGN="LEFT" VALIGN="TOP" >Black</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" >0 / 0</TD ><TD ALIGN="LEFT" VALIGN="TOP" >Transparent</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" >1 / 0</TD ><TD ALIGN="LEFT" VALIGN="TOP" >Inverted color if possible, black if not.</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></P ><P >Cursors created with this function must be freed with <A HREF="sdlfreecursor.html" >SDL_FreeCursor</A >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2524" ></A ><H2 >Example</H2 ><PRE CLASS="PROGRAMLISTING" >/* Stolen from the mailing list */ /* Creates a new mouse cursor from an XPM */ /* XPM */ static const char *arrow[] = { /* width height num_colors chars_per_pixel */ " 32 32 3 1", /* colors */ "X c #000000", ". c #ffffff", " c None", /* pixels */ "X ", "XX ", "X.X ", "X..X ", "X...X ", "X....X ", "X.....X ", "X......X ", "X.......X ", "X........X ", "X.....XXXXX ", "X..X..X ", "X.X X..X ", "XX X..X ", "X X..X ", " X..X ", " X..X ", " X..X ", " XX ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", "0,0" }; static SDL_Cursor *init_system_cursor(const char *image[]) { int i, row, col; Uint8 data[4*32]; Uint8 mask[4*32]; int hot_x, hot_y; i = -1; for ( row=0; row<32; ++row ) { for ( col=0; col<32; ++col ) { if ( col % 8 ) { data[i] <<= 1; mask[i] <<= 1; } else { ++i; data[i] = mask[i] = 0; } switch (image[4+row][col]) { case 'X': data[i] |= 0x01; mask[i] |= 0x01; break; case '.': mask[i] |= 0x01; break; case ' ': break; } } } sscanf(image[4+row], "%d,%d", &hot_x, &hot_y); return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); }</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2527" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlfreecursor.html" ><TT CLASS="FUNCTION" >SDL_FreeCursor</TT ></A >, <A HREF="sdlsetcursor.html" ><TT CLASS="FUNCTION" >SDL_SetCursor</TT ></A >, <A HREF="sdlshowcursor.html" ><TT CLASS="FUNCTION" >SDL_ShowCursor</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlwarpmouse.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlfreecursor.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_WarpMouse</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_FreeCursor</TD ></TR ></TABLE ></DIV ></BODY ></HTML >