Erik Falor wrote:
> While writing a guitabtooltip function, I discovered that the
> tooltips in Win32 don't properly handle backslash-escaped chars.
> In particular, '\n' comes out as a box, and '\t' appears to terminate the
> string like '\0'.
>
> The GTK gui on Linux, however, works as expected.
>
> I have attached a sample
> .gvimrc-like start-up script which illustrates the problem.
> When gvim is invoked like so:
>
> gvim -u NONE -U guitab.vim
>
> two unnamed gui tabs
> are displayed. When you hover over them, you should see a tooltip
> window that looks something like this:
>
> +------+
> |1 |
> |2 3|
> |4 |
> +------+
>
> In the Win32 gui, it looks like this instead:
>
> 1<box>2
This was a known problem for some time. It looks like I found a
solution, see the patch below. Let me know if this works for you.
*** ../vim-7.1.188/src/gui_w32.c Thu Aug 30 12:24:21 2007
--- src/gui_w32.c Thu Jan 3 12:35:52 2008
***************
*** 987,992 ****
--- 987,997 ----
{
LPNMTTDISPINFOW lpdi = (LPNMTTDISPINFOW)lParam;
+ /* Set the maximum width, this also enables using
+ * \n for line break. */
+ SendMessage(lpdi->hdr.hwndFrom, TTM_SETMAXTIPWIDTH,
+ 0, 500);
+
tt_text = enc_to_ucs2(str, NULL);
lpdi->lpszText = tt_text;
/* can't show tooltip if failed */
***************
*** 995,1000 ****
--- 1000,1010 ----
# endif
{
LPNMTTDISPINFO lpdi = (LPNMTTDISPINFO)lParam;
+
+ /* Set the maximum width, this also enables using
+ * \n for line break. */
+ SendMessage(lpdi->hdr.hwndFrom, TTM_SETMAXTIPWIDTH,
+ 0, 500);
if (STRLEN(str) < sizeof(lpdi->szText)
|| ((tt_text = vim_strsave(str)) == NULL))
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