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Initial support for HTML Help. All the ad-hoc help-file finding code

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and various calls to WinHelp() have been centralised into a new file
winhelp.c, which in turn has been modified to detect a .CHM file as
well as .HLP and select between them as appropriate. It explicitly
tries to load HHCTRL.OCX and use GetProcAddress, meaning that it
_should_ still work correctly on pre-HTML-Help platforms, falling
gracefully back to WinHelp, but although I tested this by
temporarily renaming my own HHCTRL.OCX I haven't yet been able to
test it on a real HTML-Help-free platform.

Also in this checkin: a new .but file and docs makefile changes to
make it convenient to build the sources for a .CHM. As yet, owing to
limitations of Halibut's CHM support, I'm not able to write a .CHM
directly, more's the pity.

[originally from svn r7000]
This commit is contained in:
Simon Tatham
2006-12-17 11:16:07 +00:00
parent 86eac20abb
commit 1dac1bc911
12 changed files with 379 additions and 303 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
windows/winctrls.c
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@ -2005,7 +2005,7 @@ int winctrl_handle_command(struct dlgparam *dp, UINT msg,
/*
* This function can be called to produce context help on a
* control. Returns TRUE if it has actually launched WinHelp.
* control. Returns TRUE if it has actually launched some help.
*/
int winctrl_context_help(struct dlgparam *dp, HWND hwnd, int id)
{
@ -2032,9 +2032,7 @@ int winctrl_context_help(struct dlgparam *dp, HWND hwnd, int id)
if (!c->ctrl || !c->ctrl->generic.helpctx.p)
return 0; /* no help available for this ctrl */
cmd = dupprintf("JI(`',`%s')", c->ctrl->generic.helpctx.p);
WinHelp(hwnd, help_path, HELP_COMMAND, (DWORD)cmd);
sfree(cmd);
launch_help(hwnd, c->ctrl->generic.helpctx.p);
return 1;
}