After is minimized/clotting/folding does not deploy Warcraft III with patch 1.27.1 with directx 12. With mode “windowed” after deploy fades/loss/disappears cursor. Answer, help/ing here please, i not can create topic in section Technical-support because of message “You must own WarCraft III to post on this forum.”. Parameter -graphicsapi Direct3D9 not help. 
DirectX11 has only been officially supported since 1.31 PTR, therefore of course 1.27.1 won’t run (normally) with DirectX12.
I have no idea from which version DirectX12 is officially supported, so the surest way is to play the latest version.
Also, it seems the command line format such as “-graphicsapi XXXXXX” has been officially supported since 1.29, so it does not work for 1.27.1 either. Try do not use any command line.
You can try to express it in your native language in parallel if you are inconvenient in using English.
About the “You must own WarCraft III to post on this forum.”, guess you need to purchase a Reforged, or redeem a Classic version with your Reign of Chaos CD code.
If you’re playing a pirated version, well…
Someone is forcibly updating my DirectX, exactly that’s why were such problems!
Generally just because your graphics card supports DirectX12 doesn’t mean that all your games will be forced to run in DirectX12. If it still doesn’t work without any command line, try use command line “-d3d” or “-opengl” that suitable for versions prior to 1.31 PTR.
You are using Intel integrated graphics right? With the limited information I know, Intel’s graphics don’t seem to have good compatibility for legacy DirectX (relatively).
“-d3d” not helping. With “-opengl” after deploy screen getting dark other words fades (flies off) brightness.
Try command line “-swtnl” to let the game using Software.
If that still doesn’t work, I can’t offer any more help with your current description. You could try to find someone else who can help you describe your problem more explicitly in English; or try to describe it in your native language, maybe there are speakers of the same language who can help you.
Or consider update your Warcraft3 and/or your Graphics Driver even OS.