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  begin
    case wParam of
      WM_KEYDOWN:
      fEatKeystroke := (p.vkCode = VK_RETURN);
    end;
    if fEatKeystroke = True then
    begin
      form1.ReplaceText;
    end;
  end;

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VK_RETURN¸Ä³ÉVK_E

fEatKeystroke := (p.vkCode = VK_RETURN);
ÐÞ¸ÄΪ
fEatKeystroke := (p.vkCode = 69);

vk_e²»ºÃÓÃ
  [Error] Unithook.pas(78): Undeclared identifier: 'VK_E'
  [Fatal Error] hook.dpr(5): Could not compile used unit 'Unithook.pas'

²éÒ»ÏÂasiicÂë±í£¬EµÄ¼üÖµÊÇ69
×¢Òâ¡®E¡¯ºÍ¡®e¡¯ÊDz»Ò»ÑùµÄ£¬Çø·Ö´óСд

fEatKeystroke := (p.vkCode = 69);
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p.vkCode Õâ¸öÊǸÉʲôµÄ ½ÓÊܰ´¼üÖµµÄ£¿


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ÎÒµãVK_RETURN ½øÈ¥¿´ÁË
{ VK_0 thru VK_9 are the same as ASCII '0' thru '9' ($30 - $39) }
{ VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' ($41 - $5A) }
VK_E ÊDz»ÊÇûע²á°¡

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