Console window stays open when running a compiled Win32 GUI EXE

[timsneath]

When you execute a compiled Win32 (non-console) application such as the Notepad example, the console application that launches it remains visible.

In #126, @ilopX suggests a clever workaround technique to patch the console executable with the same header that you'd get from the /SUBSYSTEM:WINDOWS linker command in Visual Studio. This solution makes me slightly nervous due to the brute force nature of hot-patching binaries.

For completeness, another approach that doesn't require patching executables is to add this to the first line of your main() function:

  ShowWindow(GetConsoleWindow(), SW_HIDE);

although I concede that this generates a very quick flash as it loads and immediately closes the console window.

This also feels like a good feature request for the Dart compiler, to solve this without the downsides of either of our proposals.

Opening this issue to explore solutions to this problem.