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Support OSC 4 terminal colour-palette queries.

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Markus Gans points out that some applications which (not at all
unreasonably) don't trust $TERM to tell them the full capabilities of
their terminal will use the sequence "OSC 4 ; nn ; ? BEL" to ask for
the colour-palette value in position nn, and they may not particularly
care _what_ the results are but they will use them to decide whether
the right number of colour palette entries even exist.
This commit is contained in:
Simon Tatham
2017-10-05 20:43:02 +01:00
parent 262376a054
commit 4743798400
5 changed files with 96 additions and 35 deletions
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putty.h
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@ -633,6 +633,7 @@ Context get_ctx(void *frontend);
void free_ctx(Context);
void palette_set(void *frontend, int, int, int, int);
void palette_reset(void *frontend);
int palette_get(void *frontend, int n, int *r, int *g, int *b);
void write_aclip(void *frontend, char *, int, int);
void write_clip(void *frontend, wchar_t *, int *, int, int);
void get_clip(void *frontend, wchar_t **, int *);