[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Newspeak VMs do not open the Newspeak UI on Windows (#151)

Nicolas Cellier notifications at github.com
Sat Apr 25 22:32:14 UTC 2020

The UI does not open, neither on 32bits nor 64bits VM, so this is probably not related to X64 ABI.
I put a break in ioShowDisplay with gdb and the VM is going there (via primitiveShowDisplayRect).
It is painting a region of a bitmap.
But since the window is not visible (hidden?) nothing seems to happen...

I'm not a specialist of windows UI, but there must be some obvious GUI call missing...
There should be a `ShowWindow(stWindow,SW_SHOW)` or something like that.

There is one in `ioForceDisplayUpdate()` but only `#if !NewspeakVM`.
It is suggested that Newspeak has to explicitely emit such request...
See https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/36270b33202975eee7adab9fa0905dd48421e1ef/platforms/win32/vm/sqWin32Window.c#L2263

I have checked the history of platforms/win32 around may/june 2016, not much happened there...

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