used in setup, and for huffman that doesn't go fast path

We should in theory be using fseeko()/ftello() with off_t and _fseeki64()/_ftelli64() with __int64, waiting for the PR that does that in a very portab

Known size hash It is ok to call ImHashData on a string with known length but the ### operator won't be supported. FIXME-OPT: Replace with e.g. FNV1a

[1.71: 2019/06/07: Updating prototypes of some of the internal functions. Leaving those for reference for a short while]

Helper macros to convert fixed to float */

This function computes the distance either according to a curve if pCurve * isn't NULL, or according to the inverse distance law 1/d otherwise. */

Note that shortcuts are currently provided for display only (future version will add flags to BeginMenu to process shortcuts)

delete the section

move cursor to first character of selection