[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Fix gdi leak (PR #658)

[Nicolas Cellier]

On some win32 configurations and/or with some specific image,
we observe a GDI leak : numbers of GDI objects rapidly grow up to 10,000 (about 50 new objects/second).
when the limit is reached, the image hangs and we have to kill it...

With those fixes, the number of GDI objects remains stable at 20.

You can view, comment on, or merge this pull request online at:

  https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/658

-- Commit Summary --

  * Use appropriate function to destroy the currentCursor in Win32
  * Fixup potential GDI leak in getDpiSystem in win32

-- File Changes --

    M platforms/win32/vm/sqWin32Window.c (39)

-- Patch Links --

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/658.patch
https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/658.diff

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