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flat assembler > Windows > What does IDYES mean?

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Lengua_Maquinista



Joined: 05 Apr 2017
Posts: 4
What does IDYES mean?
Below I have the program in question's source code listed.

Now I see that for the cd player to open on your computer when you run it, you have to answer the message box "YES", and assembly language compares the message box with what you entered to see if the program will continue. With a little bit of research IDYES obviously has something to do with basic/message-box. But what?



Thanks





Code:
; Beer - example of tiny (one section) Win32 program

format PE GUI 4.0

include 'win32a.inc'

; no section defined - fasm will automatically create .flat section for both
; code and data, and set entry point at the beginning of this section

        invoke  MessageBoxA,0,_message,_caption,MB_ICONQUESTION+MB_YESNO
        cmp     eax,IDYES
        jne     exit

        invoke  mciSendString,_cmd_open,0,0,0
        invoke  mciSendString,_cmd_eject,0,0,0
        invoke  mciSendString,_cmd_close,0,0,0

exit:
        invoke  ExitProcess,0

_message db 'Do you need additional place for the beer?',0
_caption db 'Desktop configuration',0

_cmd_open db 'open cdaudio',0
_cmd_eject db 'set cdaudio door open',0
_cmd_close db 'close cdaudio',0

; import data in the same section



Edit by revolution: Added code tags
Post 09 Apr 2017, 22:30
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zhak



Joined: 12 Apr 2005
Posts: 468
Location: Belarus
MessageBoxA returns value in eax based on what button you clicked. IDYES is the value which is returned when you clicked MB_YES button
Post 09 Apr 2017, 22:33
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Trinitek



Joined: 06 Nov 2011
Posts: 254
Post 09 Apr 2017, 22:58
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