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<div class="title">SDL_rwops.h File Reference</div> </div>
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<div class="textblock"><code>#include "<a class="el" href="SDL__stdinc_8h_source.html">SDL_stdinc.h</a>"</code><br />
<code>#include "<a class="el" href="SDL__error_8h_source.html">SDL_error.h</a>"</code><br />
<code>#include "<a class="el" href="begin__code_8h_source.html">begin_code.h</a>"</code><br />
<code>#include "<a class="el" href="close__code_8h_source.html">close_code.h</a>"</code><br />
</div>
<p><a href="SDL__rwops_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__RWops.html">SDL_RWops</a></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:abefd1a35086e97620beffc2c069bd97d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#abefd1a35086e97620beffc2c069bd97d">SDL_RWOPS_UNKNOWN</a>   0U</td></tr>
<tr class="separator:abefd1a35086e97620beffc2c069bd97d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad979b58d7905cfd8af0bab9ed97c1685"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ad979b58d7905cfd8af0bab9ed97c1685">SDL_RWOPS_WINFILE</a>   1U</td></tr>
<tr class="separator:ad979b58d7905cfd8af0bab9ed97c1685"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a054a717fd0b1a2f175e2e822e1ecc67d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a054a717fd0b1a2f175e2e822e1ecc67d">SDL_RWOPS_STDFILE</a>   2U</td></tr>
<tr class="separator:a054a717fd0b1a2f175e2e822e1ecc67d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad1e973a8b9f9c6cae33f2870c9f76b7d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ad1e973a8b9f9c6cae33f2870c9f76b7d">SDL_RWOPS_JNIFILE</a>   3U</td></tr>
<tr class="separator:ad1e973a8b9f9c6cae33f2870c9f76b7d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1120765c20af356803b2beb6709e6749"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a1120765c20af356803b2beb6709e6749">SDL_RWOPS_MEMORY</a>   4U</td></tr>
<tr class="separator:a1120765c20af356803b2beb6709e6749"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a145dd63b72548f37e2fdd9de8bf15bbc"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a145dd63b72548f37e2fdd9de8bf15bbc">SDL_RWOPS_MEMORY_RO</a>   5U</td></tr>
<tr class="separator:a145dd63b72548f37e2fdd9de8bf15bbc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac028b032bb8230df64bc6284e04789f5"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ac028b032bb8230df64bc6284e04789f5">RW_SEEK_SET</a>   0</td></tr>
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<tr class="memitem:aba5f3b60c197def370ffa2ca1ab1348d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#aba5f3b60c197def370ffa2ca1ab1348d">RW_SEEK_CUR</a>   1</td></tr>
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<tr class="memitem:a6cf141faabd1b8f2ec3c03cf76eaf553"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a6cf141faabd1b8f2ec3c03cf76eaf553">RW_SEEK_END</a>   2</td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:af758c42c576a0612bdf298c5823a5fe5"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structSDL__RWops.html">SDL_RWops</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#af758c42c576a0612bdf298c5823a5fe5">SDL_RWops</a></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a02d04e13c85cd28706b8c3881c32dd46"><td class="memItemLeft" align="right" valign="top"><a id="a02d04e13c85cd28706b8c3881c32dd46"></a>
DECLSPEC <a class="el" href="structSDL__RWops.html">SDL_RWops</a> *SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_AllocRW</b> (void)</td></tr>
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<tr class="memitem:ac4c87c7bed186ea1a98531164ff1acfa"><td class="memItemLeft" align="right" valign="top"><a id="ac4c87c7bed186ea1a98531164ff1acfa"></a>
DECLSPEC void SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_FreeRW</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *area)</td></tr>
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<tr class="memitem:ab311e9e01e66dde338349b5988008f79"><td class="memItemLeft" align="right" valign="top">DECLSPEC Sint64 SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ab311e9e01e66dde338349b5988008f79">SDL_RWsize</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *context)</td></tr>
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<tr class="memitem:a2bd3bfec48d375b5e761a5f7f3138766"><td class="memItemLeft" align="right" valign="top">DECLSPEC Sint64 SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a2bd3bfec48d375b5e761a5f7f3138766">SDL_RWseek</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *context, Sint64 offset, int whence)</td></tr>
<tr class="separator:a2bd3bfec48d375b5e761a5f7f3138766"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aade1cc6bf5cd0972c64f1bc032bdece6"><td class="memItemLeft" align="right" valign="top">DECLSPEC Sint64 SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#aade1cc6bf5cd0972c64f1bc032bdece6">SDL_RWtell</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *context)</td></tr>
<tr class="separator:aade1cc6bf5cd0972c64f1bc032bdece6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7496ce8759fe964ee40cd6fbfa4b82f9"><td class="memItemLeft" align="right" valign="top">DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a7496ce8759fe964ee40cd6fbfa4b82f9">SDL_RWread</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *context, void *ptr, size_t size, size_t maxnum)</td></tr>
<tr class="separator:a7496ce8759fe964ee40cd6fbfa4b82f9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ada3c6d29d2fc5f0367abdcbfc2f2896a"><td class="memItemLeft" align="right" valign="top">DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ada3c6d29d2fc5f0367abdcbfc2f2896a">SDL_RWwrite</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *context, const void *ptr, size_t size, size_t num)</td></tr>
<tr class="separator:ada3c6d29d2fc5f0367abdcbfc2f2896a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4e432d6d008ad176b7653b4797de12e9"><td class="memItemLeft" align="right" valign="top">DECLSPEC int SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#a4e432d6d008ad176b7653b4797de12e9">SDL_RWclose</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *context)</td></tr>
<tr class="separator:a4e432d6d008ad176b7653b4797de12e9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab80a1b522d2fbbae8ed5610d029fcfda"><td class="memItemLeft" align="right" valign="top">DECLSPEC void *SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ab80a1b522d2fbbae8ed5610d029fcfda">SDL_LoadFile_RW</a> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src, size_t *datasize, int freesrc)</td></tr>
<tr class="separator:ab80a1b522d2fbbae8ed5610d029fcfda"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac259a2d74dfea39864bf3840ee126837"><td class="memItemLeft" align="right" valign="top">DECLSPEC void *SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__rwops_8h.html#ac259a2d74dfea39864bf3840ee126837">SDL_LoadFile</a> (const char *file, size_t *datasize)</td></tr>
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<tr><td colspan="2"><div class="groupHeader">RWFrom functions</div></td></tr>
<tr><td colspan="2"><div class="groupText"><p>Functions to create <a class="el" href="structSDL__RWops.html">SDL_RWops</a> structures from various data streams. </p>
</div></td></tr>
<tr class="memitem:aef7e843c3486bd1770667a594aa0b439"><td class="memItemLeft" align="right" valign="top"><a id="aef7e843c3486bd1770667a594aa0b439"></a>
DECLSPEC <a class="el" href="structSDL__RWops.html">SDL_RWops</a> *SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_RWFromFile</b> (const char *file, const char *mode)</td></tr>
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DECLSPEC <a class="el" href="structSDL__RWops.html">SDL_RWops</a> *SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_RWFromFP</b> (FILE *fp, SDL_bool autoclose)</td></tr>
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DECLSPEC <a class="el" href="structSDL__RWops.html">SDL_RWops</a> *SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_RWFromMem</b> (void *mem, int size)</td></tr>
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DECLSPEC <a class="el" href="structSDL__RWops.html">SDL_RWops</a> *SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_RWFromConstMem</b> (const void *mem, int size)</td></tr>
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<tr><td colspan="2"><div class="groupHeader">Read endian functions</div></td></tr>
<tr><td colspan="2"><div class="groupText"><p>Read an item of the specified endianness and return in native format. </p>
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DECLSPEC Uint8 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadU8</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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DECLSPEC Uint16 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadLE16</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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DECLSPEC Uint16 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadBE16</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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DECLSPEC Uint32 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadLE32</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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DECLSPEC Uint32 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadBE32</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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DECLSPEC Uint64 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadLE64</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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DECLSPEC Uint64 SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_ReadBE64</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *src)</td></tr>
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<tr><td colspan="2"><div class="groupHeader">Write endian functions</div></td></tr>
<tr><td colspan="2"><div class="groupText"><p>Write an item of native format to the specified endianness. </p>
</div></td></tr>
<tr class="memitem:a07c817f8360ddc8c8983d12373306555"><td class="memItemLeft" align="right" valign="top"><a id="a07c817f8360ddc8c8983d12373306555"></a>
DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteU8</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint8 value)</td></tr>
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DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteLE16</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint16 value)</td></tr>
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DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteBE16</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint16 value)</td></tr>
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DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteLE32</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint32 value)</td></tr>
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DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteBE32</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint32 value)</td></tr>
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DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteLE64</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint64 value)</td></tr>
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DECLSPEC size_t SDLCALL </td><td class="memItemRight" valign="bottom"><b>SDL_WriteBE64</b> (<a class="el" href="structSDL__RWops.html">SDL_RWops</a> *dst, Uint64 value)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This file provides a general interface for SDL to read and write data streams. It can easily be extended to files, memory, etc. </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="aba5f3b60c197def370ffa2ca1ab1348d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aba5f3b60c197def370ffa2ca1ab1348d">◆ </a></span>RW_SEEK_CUR</h2>
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<td class="memname">#define RW_SEEK_CUR   1</td>
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<p>Seek relative to current read point </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6cf141faabd1b8f2ec3c03cf76eaf553">◆ </a></span>RW_SEEK_END</h2>
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<td class="memname">#define RW_SEEK_END   2</td>
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<p>Seek relative to the end of data </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac028b032bb8230df64bc6284e04789f5">◆ </a></span>RW_SEEK_SET</h2>
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<td class="memname">#define RW_SEEK_SET   0</td>
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<p>Seek from the beginning of data </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad1e973a8b9f9c6cae33f2870c9f76b7d">◆ </a></span>SDL_RWOPS_JNIFILE</h2>
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<td class="memname">#define SDL_RWOPS_JNIFILE   3U</td>
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<p>Android asset </p>
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<a id="a1120765c20af356803b2beb6709e6749"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1120765c20af356803b2beb6709e6749">◆ </a></span>SDL_RWOPS_MEMORY</h2>
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<td class="memname">#define SDL_RWOPS_MEMORY   4U</td>
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<p>Memory stream </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a145dd63b72548f37e2fdd9de8bf15bbc">◆ </a></span>SDL_RWOPS_MEMORY_RO</h2>
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<td class="memname">#define SDL_RWOPS_MEMORY_RO   5U</td>
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<p>Read-Only memory stream </p>
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<a id="a054a717fd0b1a2f175e2e822e1ecc67d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a054a717fd0b1a2f175e2e822e1ecc67d">◆ </a></span>SDL_RWOPS_STDFILE</h2>
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<td class="memname">#define SDL_RWOPS_STDFILE   2U</td>
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<p>Stdio file </p>
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<a id="abefd1a35086e97620beffc2c069bd97d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abefd1a35086e97620beffc2c069bd97d">◆ </a></span>SDL_RWOPS_UNKNOWN</h2>
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<td class="memname">#define SDL_RWOPS_UNKNOWN   0U</td>
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<p>Unknown stream type </p>
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<a id="ad979b58d7905cfd8af0bab9ed97c1685"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad979b58d7905cfd8af0bab9ed97c1685">◆ </a></span>SDL_RWOPS_WINFILE</h2>
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<td class="memname">#define SDL_RWOPS_WINFILE   1U</td>
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<p>Win32 file </p>
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<h2 class="groupheader">Typedef Documentation</h2>
<a id="af758c42c576a0612bdf298c5823a5fe5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af758c42c576a0612bdf298c5823a5fe5">◆ </a></span>SDL_RWops</h2>
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<td class="memname">typedef struct <a class="el" href="structSDL__RWops.html">SDL_RWops</a> <a class="el" href="structSDL__RWops.html">SDL_RWops</a></td>
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<p>This is the read/write operation structure – very basic. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ac259a2d74dfea39864bf3840ee126837">◆ </a></span>SDL_LoadFile()</h2>
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<td class="memname">DECLSPEC void* SDLCALL SDL_LoadFile </td>
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<td class="paramtype">const char * </td>
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<td class="paramtype">size_t * </td>
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<p>Load an entire file.</p>
<p>The data is allocated with a zero byte at the end (null terminated)</p>
<p>If <code>datasize</code> is not NULL, it is filled with the size of the data read.</p>
<p>If <code>freesrc</code> is non-zero, the stream will be closed after being read.</p>
<p>The data should be freed with SDL_free().</p>
<dl class="section return"><dt>Returns</dt><dd>the data, or NULL if there was an error. </dd></dl>
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<a id="ab80a1b522d2fbbae8ed5610d029fcfda"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab80a1b522d2fbbae8ed5610d029fcfda">◆ </a></span>SDL_LoadFile_RW()</h2>
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<td class="memname">DECLSPEC void* SDLCALL SDL_LoadFile_RW </td>
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<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
<td class="paramname"><em>src</em>, </td>
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<td class="paramtype">size_t * </td>
<td class="paramname"><em>datasize</em>, </td>
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<td class="paramname"><em>freesrc</em> </td>
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<p>Load all the data from an SDL data stream.</p>
<p>The data is allocated with a zero byte at the end (null terminated)</p>
<p>If <code>datasize</code> is not NULL, it is filled with the size of the data read.</p>
<p>If <code>freesrc</code> is non-zero, the stream will be closed after being read.</p>
<p>The data should be freed with SDL_free().</p>
<dl class="section return"><dt>Returns</dt><dd>the data, or NULL if there was an error. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a4e432d6d008ad176b7653b4797de12e9">◆ </a></span>SDL_RWclose()</h2>
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<td class="memname">DECLSPEC int SDLCALL SDL_RWclose </td>
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<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
<td class="paramname"><em>context</em></td><td>)</td>
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<p>Close and free an allocated <a class="el" href="structSDL__RWops.html">SDL_RWops</a> structure.</p>
<dl class="section return"><dt>Returns</dt><dd>0 if successful or -1 on write error when flushing data. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a7496ce8759fe964ee40cd6fbfa4b82f9">◆ </a></span>SDL_RWread()</h2>
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<td class="memname">DECLSPEC size_t SDLCALL SDL_RWread </td>
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<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
<td class="paramname"><em>context</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>ptr</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>maxnum</em> </td>
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<p>Read up to <code>maxnum</code> objects each of size <code>size</code> from the data stream to the area pointed at by <code>ptr</code>.</p>
<dl class="section return"><dt>Returns</dt><dd>the number of objects read, or 0 at error or end of file. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a2bd3bfec48d375b5e761a5f7f3138766">◆ </a></span>SDL_RWseek()</h2>
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<td class="memname">DECLSPEC Sint64 SDLCALL SDL_RWseek </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
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<td class="paramname"><em>offset</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>whence</em> </td>
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<p>Seek to <code>offset</code> relative to <code>whence</code>, one of stdio's whence values: RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END</p>
<dl class="section return"><dt>Returns</dt><dd>the final offset in the data stream, or -1 on error. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ab311e9e01e66dde338349b5988008f79">◆ </a></span>SDL_RWsize()</h2>
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<td class="memname">DECLSPEC Sint64 SDLCALL SDL_RWsize </td>
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<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
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<p>Return the size of the file in this rwops, or -1 if unknown </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aade1cc6bf5cd0972c64f1bc032bdece6">◆ </a></span>SDL_RWtell()</h2>
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<td class="memname">DECLSPEC Sint64 SDLCALL SDL_RWtell </td>
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<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
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<p>Return the current offset in the data stream, or -1 on error. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ada3c6d29d2fc5f0367abdcbfc2f2896a">◆ </a></span>SDL_RWwrite()</h2>
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<td class="memname">DECLSPEC size_t SDLCALL SDL_RWwrite </td>
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<td class="paramtype"><a class="el" href="structSDL__RWops.html">SDL_RWops</a> * </td>
<td class="paramname"><em>context</em>, </td>
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<td class="paramname"><em>ptr</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>num</em> </td>
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<p>Write exactly <code>num</code> objects each of size <code>size</code> from the area pointed at by <code>ptr</code> to data stream.</p>
<dl class="section return"><dt>Returns</dt><dd>the number of objects written, or 0 at error or end of file. </dd></dl>
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