<p></p>
<p>The UI does not open, neither on 32bits nor 64bits VM, so this is probably not related to X64 ABI.<br>
I put a break in ioShowDisplay with gdb and the VM is going there (via primitiveShowDisplayRect).<br>
It is painting a region of a bitmap.<br>
But since the window is not visible (hidden?) nothing seems to happen...</p>
<p>I'm not a specialist of windows UI, but there must be some obvious GUI call missing...<br>
There should be a <code>ShowWindow(stWindow,SW_SHOW)</code> or something like that.</p>
<p>There is one in <code>ioForceDisplayUpdate()</code> but only <code>#if !NewspeakVM</code>.<br>
It is suggested that Newspeak has to explicitely emit such request...<br>
See <a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/36270b33202975eee7adab9fa0905dd48421e1ef/platforms/win32/vm/sqWin32Window.c#L2263">https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/36270b33202975eee7adab9fa0905dd48421e1ef/platforms/win32/vm/sqWin32Window.c#L2263</a></p>
<p>I have checked the history of platforms/win32 around may/june 2016, not much happened there...<br>
<a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/commits/Cog?after=36270b33202975eee7adab9fa0905dd48421e1ef+244&path%5B%5D=platforms&path%5B%5D=win32&path%5B%5D=vm">https://github.com/OpenSmalltalk/opensmalltalk-vm/commits/Cog?after=36270b33202975eee7adab9fa0905dd48421e1ef+244&path%5B%5D=platforms&path%5B%5D=win32&path%5B%5D=vm</a></p>

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