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[?] check if multiple keys are down with getasynckeystate

 
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reverser69
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PostPosted: Wed Mar 10, 2021 3:11 am    Post subject: [?] check if multiple keys are down with getasynckeystate Reply with quote
hi all

how can I check for example "ctrl+X" or "shift+X" with getasynckeystate in auto assembler?
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sbryzl
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PostPosted: Wed Mar 10, 2021 11:40 am    Post subject: Reply with quote
Is it 32 or 64 bit and doing injection or createthread?
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reverser69
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PostPosted: Thu Mar 11, 2021 5:01 am    Post subject: Reply with quote
currently, it's createthread but I'd love to know both approaches. I know how to implement one key but for two keys, I wonder do I have to call getasynckeystate twice or once with extra parameters.
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sbryzl
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PostPosted: Thu Mar 11, 2021 6:43 am    Post subject: This post has 1 review(s) Reply with quote
It takes 1 parameter and returns 1 value so you need to do it twice then bitwise and the values together.


Code:
mov rcx,10          // shift key
call checkeyst
mov rcx,11          // ctrl key
call checkeyst
jmp // to original code or do other custom code

checkeyst:
sub rsp,20
call GetAsyncKeyState
mov [keyUDtst],rax
mov rcx,58           // x key
call GetAsyncKeyState
and rax,[keyUDtst]
add rsp,20
test rax,8000
jnz bthkeydown
ret
bthkeydown:
//both keys are down, Go
lea rax,[rax]       // insert custom code
ret

align 8
keyUDtst:
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reverser69
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PostPosted: Thu Mar 11, 2021 7:50 am    Post subject: Reply with quote
thx
+1
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angelbabie
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PostPosted: Thu Mar 11, 2021 9:59 pm    Post subject: Reply with quote
thanks.. helpful, so amazing.
play 2 player games with your kids. 2player.co
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