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include \masm64\include\masm64rt.inc
MBSTRUCT STRUCT QWORD
whndl dq ?
wtxtm dq ?
wttlm dq ?
wstyl dq ?
MBSTRUCT ENDS
.code
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entry_point proc
.stack
LOCAL mbs:MBSTRUCT
mov r10, chr$("Pass arguments in a structure test")
mov r11, chr$("Title")
mov mbs.whndl, 0
mov mbs.wtxtm, r10
mov mbs.wttlm, r11
mov mbs.wstyl, MB_OK
lea rcx, mbs
call mbox
void(ExitProcess,0)
ret
entry_point endp
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mbox proc
.stack
mov rax, rcx
mov rcx, (MBSTRUCT PTR [rax]).whndl
mov rdx, (MBSTRUCT PTR [rax]).wtxtm
mov r8, (MBSTRUCT PTR [rax]).wttlm
mov r9, (MBSTRUCT PTR [rax]).wstyl
call MessageBox
ret
mbox endp
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end
