What LDC flags should be used to get the fastest executable on Windows?

[Imperatorn]

On Saturday, 6 March 2021 at 11:34:33 UTC, Imperatorn wrote:
> On Saturday, 6 March 2021 at 10:51:35 UTC, Preetpal wrote:
>> On Saturday, 6 March 2021 at 09:07:05 UTC, Imperatorn wrote:
>>> [...]
>>
>> There is an issue with the code where the running program very 
>> infrequently misses when the SHIFT key is released. As this 
>> program keeps track of what modifier keys are currently 
>> pressed (as it is supposed keep track of all key presses and 
>> key releases), this can cause the wrong keyboard shortcut to 
>> be triggered.
>>
>> [...]
>
> I see, back in the day when I did stuff like this, I used 
> GetAsyncKeyState instead. Have you tried that approach?

Or maybe it was GetKeyboardState, don't remember, was about 17 
years ago 😁