[Bug 175] CreateIcon does not resize bitmaps

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=175


Wilfried Pasquazzo <wilfried.pasquazzo at gmail.com> changed:

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--- Comment #15 from Wilfried Pasquazzo <wilfried.pasquazzo at gmail.com>  2009-09-22 05:41:23 ---
This is not a bug with "CreateIcon".

The problem in the test-application is the "DrawIcon" method, which fails to
stretch the Icons to the "System Large"-size when drawing, and NOT the
"CreateIcon" method. To resize the bitmaps during creation would be wrong.

--
Citations from http://msdn.microsoft.com/en-us/library/ms997538.aspx:

"CreateIcon and CreateIconIndirect, even though they have their roots in 16-bit
land, do facilitate creating icons of different sizes. CreateIcon accept a
desired width and height as parameters"

"DrawIcon always draws the icon at System Large size. If a different size icon
is passed to DrawIcon, it is stretched and displayed at System Large size."
--

I'll attach a modified test-application, and WindowsXP/Wine-Screenshots of it.
The first line of icons is drawn with "CreateIcon", which should ignore the
real icon size and draw them all at the same "system large"-size.

The second line of icons is drawn with "CreateIconEx", which draws the icons in
their real icon size (2x2, 16x16, 16x16 and 16x16).
As can be seen, the second lines look the same in both screenshots, therefore
the icons are created with same sizes in Windows and Wine. (The wrong colors in
my wine-screenshot are likely unrelated to this bug).

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