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bpo-33656: On Windows, add API call saying that tk scales for DPI (GH-7137)

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On Windows 8.1+ or 10, with DPI compatibility properties of the Python binary
unchanged, and a monitor resolution greater than 96 DPI, this should
make text and lines sharper. It should otherwise have no effect.

Using a magnifier, I determined that the improvement comes from horizontal and
lines being better lined up with the monitor pixels. I checked that this call causes
no problem on any Windows buildbot, including the Win7 buildbots. Unlike most
IDLE patches, this one can be easily reverted by users by removing a few lines,
at the top of idlelib/pyshell.py.
This commit is contained in:
Terry Jan Reedy 2018-06-11 14:14:32 -04:00 • committed by GitHub
parent 0e5f901508
commit 800415e3df
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5 changed files with 30 additions and 3 deletions
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7
Lib/idlelib/configdialog.py
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@ -373,11 +373,12 @@ class ConfigDialog(Toplevel):
).grid(row=row, column=1, sticky=W, padx=7)
elif opt['type'] == 'int':
Entry(entry_area, textvariable=var, validate='key',
validatecommand=(self.is_int, '%P')
validatecommand=(self.is_int, '%P'), width=10
).grid(row=row, column=1, sticky=NSEW, padx=7)
else:
Entry(entry_area, textvariable=var
else: # type == 'str'
# Limit size to fit non-expanding space with larger font.
Entry(entry_area, textvariable=var, width=15
).grid(row=row, column=1, sticky=NSEW, padx=7)
return