做演讲视频的网站如何网站防止采集

提供5个子程序:

　　1. 发送按键 sendkey

　　2. 检测是否有按键 testkey

　　3. 读取按键 getkey

　　4. 判断键盘缓冲区是否为空 bufempty

　　5. 判断键盘缓冲区是否已满 buffull

具体功能及参数描述如下

sendkey proc　　far ;　ax=charcode testkey proc　　far ; out: ;　　　zf=1　buff empty; ;　　　zf=0　ax=key code getkey　proc　　far ; out: ;　　 ax=key code ; if buf empty, it will wait bufempty proc　　far　　; test key buffer be empty or not ; out: ;　　　zf=0　not empty;　 zf=1　empty buffull　proc　　far　　; test key buffer be full or not ; out: ;　　　zf=0　not full;　　zf=1　full

; more source code at http://www.ahjoe.com/source/srcdown.asp.286public  sendkey, getkey, testkey, buffull, bufempty
code    segmentassume  cs:code, ds:codesendkey proc    far
;  ax=charcodepush    axpush    bxpush    sipush    dipush    dscmp     ah, 0jnz     sendkj0mov     ah, 30h
sendkj0:mov     bx, 40hmov     ds, bxmov     di, ds:[1ch]mov     bx, dicall    incptrcmp     bx, ds:[1ah]jz      fullkmov     ds:[di], axmov     ds:[1ch], bx
fullk:pop     dspop     dipop     sipop     bxpop     axretf
sendkey endp                              getkey  proc    far
; out:
;     ax=key code
; if buf empty, it will waitpush    bxpush    sipush    dsmov     ax, 40hmov     ds, ax
getkeyrep:mov     si, ds:[1ah]cmp     si, ds:[1ch]jz      getkeyrepmov     ax, [si]mov     bx, sicall    incptrmov     ds:[1ah], bxpop     dspop     sipop     bxretf	
getkey  endptestkey proc    far
; out:
;      zf=1  buff empty;
;      zf=0  ax=key codepush    sipush    dsmov     ax, 40hmov     ds, axmov     si, ds:[1ah]mov     ax, [si]cmp     si, ds:[1ch]pop     dspop     siretf    
testkey endpbufempty proc    far    ; test key buffer be empty or not
; out:
;      zf=0  not empty;   zf=1  emptypush    sipush    dsmov     si, 40hmov     ds, simov     si, ds:[1ah]cmp     si, ds:[1ch]pop     dspop     siretf
bufempty endpbuffull  proc    far    ; test key buffer be full or not
; out:
;      zf=0  not full;    zf=1  fullpush    dspush    bxmov     bx, 40hmov     ds, bxmov     bx, ds:[1ch]call    incptrcmp     bx, ds:[1ah]pop     bxpop     dsretf
buffull  endpincptr  proc    nearinc     bxinc     bxcmp     bx, 3ehjb      incokmov     bx, 1eh
incok:retn
incptr  endpdecptr  proc    neardec     bxdec     bxcmp     bx, 1chja      decokmov     bx, 3ch
decok:retn
decptr  endpcode    endsend     sendkey