#pragma section-numbers off
#pragma camelcase off

= SDL_RWtell =
Use this function to determine the current read/write offset in an [[SDL_RWops]] data stream.

<<TableOfContents()>>

== Syntax ==
{{{#!highlight cpp
Sint64 SDL_RWtell(struct SDL_RWops* context)
}}}

== Function Parameters ==
||'''context''' ||a [[SDL_RWops]] data stream object from which to get the current offset||

== Return Value ==
Returns the current offset in the stream, or -1 if the information can not be determined.

== Code Examples ==
{{{#!highlight cpp
extern SDL_RWops *rw;
printf("Current position in stream: %lld\n", (long long) SDL_RWtell(rw));
if (SDL_RWseek(rw, 0, RW_SEEK_END) != -1) {
    printf("Final position in stream: %lld\n", (long long) SDL_RWtell(rw));
}
}}}

== Remarks ==
SDL_RWtell is actually a macro that calls the [[SDL_RWops]]'s '''seek''' method, with an offset of 0 bytes from RW_SEEK_CUR, to simplify application development.

== Related Functions ==
 .[[SDL_RWclose]]
 .[[SDL_RWFromConstMem]]
 .[[SDL_RWFromFile]]
 .[[SDL_RWFromFP]]
 .[[SDL_RWFromMem]]
 .[[SDL_RWread]]
 .[[SDL_RWseek]]
 .[[SDL_RWwrite]]

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[[CategoryAPI]], [[CategoryIO]]