Fasm – GetClipboardData

include '%fasm%/win64ax.inc'
section '.code' executable
start:
        invoke OpenClipboard,NULL
        invoke GetClipboardData,CF_TEXT
        cmp eax,NULL
        je exit
        mov ebx,eax
        invoke GlobalLock,eax
        invoke MessageBoxTimeout,HWND_DESKTOP,eax,'',MB_TOPMOST,LANG_NEUTRAL,5000
        invoke GlobalUnlock,ebx
        invoke CloseClipboard
exit:
        invoke ExitProcess,NULL
 
section '.idata' import readable
 
        library kernel32,'KERNEL32.DLL',user32,'USER32.DLL'
        include '%fasm%/api/kernel32.inc'
        include '%fasm%/api/user32.inc'