Problem: MS-Windows GUI: high unicode char received as two utf-16 words.
Solution: Keep the first word until the second word is received. (Chris
Morgan, closes#2800)
Problem: Endless loop when gui_mch_stop_blink() is called while blink_state
is BLINK_OFF. (zdohnal)
Solution: Avoid calling gui_update_cursor() recursively.
Problem: Slow redrawing with DirectX.
Solution: Avoid calling gui_mch_flush() unnecessarily, especially when
updating the cursor. (Ken Takata, closes#2560)
Problem: DirectX scrolling can be slow, vertical positioning is off.
Solution: Make scroll slightly faster when using "scrlines:1". Fix y
position of displayed text. Fix DirectX with non-utf8 encoding.
(Ken Takata, closes#2440)
Problem: No error when settting 'renderoptions' to an invalid value before
starting the GUI.
Solution: Always check the value. (Ken Takata, closes#2413)
Problem: Warning for unused variables building with MinGW.
Solution: Change a few #ifdefs (suggested by John Marriott). Remove
superfluous checks of FEAT_MBYTE.
Problem: MS-Windows: does not show colored emojis.
Solution: Implement colored emojis. Improve drawing speed. Make 'taamode'
work. (Taro Muraoka, Yasuhiro Matsumoto, Ken Takata, close#2375)
Problem: balloon_show() only works in terminal when compiled with the GUI.
Solution: Add FEAT_BEVAL_GUI and refactor to move common code out of the GUI
specific file.
Problem: GUI window always resizes when adding/removing a scrollbar,
toolbar, etc.
Solution: Add the 'k' flag in 'guioptions' to keep the GUI window size and
change the number of lines/columns instead. (Ychin, closes#703)
Problem: MS-Windows: composing characters are not shown properly.
Solution: Pass base character and composing characters to the renderer at
once. (Ken Takata, closes#2206)
Problem: MS-Windows GUI: dialog font size is incorrect.
Solution: Pass flag to indicate 'encoding' or active codepage. (Yasuhiro
Matsomoto, closes#2160)
Problem: FEAT_WINDOWS adds a lot of #ifdefs while it is nearly always
enabled and only adds 7% to the binary size of the tiny build.
Solution: Graduate FEAT_WINDOWS.
Problem: MS-Windows: CTRL-C kills shell in terminal window instead of the
command running in the shell.
Solution: Make CTRL-C only send a CTRL_C_EVENT and have CTRL-BREAK kill the
job. (partly by Yasuhiro Matsumoto, closes#1962)
Problem: MS-Windows: message box to prompt for saving changes may appear on
the wrong monitor.
Solution: Adjust the CenterWindow function. (Ken Takata)
Problem: Cannot make Vim fail on an internal error.
Solution: Add IEMSG() and IEMSG2(). (Domenique Pelle) Avoid reporting an
internal error without mentioning where.
Problem: Code for MS-Windows is complicated because of the exceptions for
old systems.
Solution: Drop support for MS-Windows older than Windows XP. (Ken Takata)
Problem: Warning for assigning negative value to unsigned. (Danek Duvall)
Solution: Make cterm_normal_fg_gui_color and _bg_ guicolor_T, cast to long_u
only when an unsigned is needed.
Problem: GUI: cursor drawn in wrong place if a timer callback causes a
screen update. (David Samvelyan)
Solution: Also redraw the cursor when it's blinking and on.
