Manual Content: Add practical explanation and usage guidance for the Windows game options "Use Legacy DXGI_SWAP_EFFECT_DISCARD" and "Use Raw Mouse Input"

[L-Clouds]

What is the bug?

The Windows game options "Use Legacy DXGI_SWAP_EFFECT_DISCARD" and "Use Raw Mouse Input" are only minimally described in the Manual:

• Use Legacy DXGI_SWAP_EFFECT_DISCARD: Checking this will revert back to the swap chain swap effect that was previously used by GameMaker. This is off by default.
• Use Raw Mouse Input: Checking this will enable direct polling of the mouse position, rather than updating it through Windows messages, in order to prevent input delay that might occur. This is off by default.

For each of these, in non-technical terms, what are the practical effects, benefits and drawbacks? When, and for what reasons, would one choose to have these enabled or disabled?

Manual Link

https://manual.gamemaker.io/monthly/en/Settings/Game_Options/Windows.htm