Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

DelphiѹËõͼƬ´úÂë

Ìí¼ÓÒýÓãºuses JPEG;
//=====================ͼƬ´¦Àíº¯Êý£¬½«¸²¸ÇԭͼƬÎļþ===========================
//=====filename:ͼƬÍêÕû·¾¶  PressQuality:ѹËõÖÊÁ¿ Width:¿í  Height:¸ß
function CompressMainFun(filename: String; PressQuality,Width,Height:integer): Boolean;
var
  bmp: TBitmap;
  jpg: TJpegImage;
  i: Integer;
  sTemp:string;
begin
  Result := False;
    if pos(UpperCase('.bmp'), UpperCase(filename)) <> 0 then   //bmp¸ñʽ
    begin
      bmp.LoadfromFile(filename);
      jpg.Assign(bmp);
      jpg.CompressionQuality := PressQuality;
      jpg.Compress;
      bmp.height := Height;
      bmp.Width := Width;
      bmp.Canvas.StretchDraw(bmp.Canvas.ClipRect, jpg);
      jpg.Assign(bmp);
      sTemp := filename + '.jpg';
      jpg.SaveToFile(sTemp);
      DeleteFile(filename);
      CopyFile(PChar(sTemp), PChar(filename), True);
      DeleteFile(sTemp);
    end
    else                                                     //ÆäËü¸ñʽ
    begin
      jpg.LoadfromFile(filename);
      bmp.height := Height;
      bmp.Width := Width;
      bmp.Canvas.StretchDraw(bmp.Canvas.ClipRect, jpg);
      jpg.Assign(bmp);
 &nb


Ïà¹ØÎĵµ£º

delphi ÅжÏÍøÂçÊÇ·ñÁ¬Í¨µÄ·½·¨

uses WinInet;
procedure TForm1.Button1Click(Sender: TObject);
begin
  if InternetGetConnectedState(nil, 0) then
    ShowMessage('ÒÑÁ¬½Ó')
  else
    ShowMessage('ÒѶϿª');
end; ......

Delphi callµ÷ÓÃÀý×Ó

ÔÚȺÀï¿´µ½ÓÐÈË·¢Á˸ö±ðÈË·¢¸øËûµÄ
ÎÒ¿´ÁËдµÄ±È½ÏÉú¶¯ ÔÚÕâת¸ø´ó¼Ò¿´¿´
ºÃµÄ Ê°È¡ÎïÌ庯ÊýдºÃÁË Ï²½ÊÇÈçºÎ½«´úÂë×¢Èëµ½ÓÎÏ·½ø³ÌÖÐÖ´ÐÐ??
1) С͵¿ªÃÅ
PHND:= OpenProcess (PROCESS_ALL_ACCESS, False, PID);µÃµ½ÓÎÏ·´°¿Ú¾ä±ú»ñµÃȨÏÞ
2)С͵ÔÚ·¿¼ä¸ã¸ö·Å×÷°¸·½°¸µÄµØ·½
TAdd := VirtualAllocEx(PHND, nil, 4096, ......

¸ÄÔìDelphiµÄTStringHash³É±È½ÏͨÓõĹþÏ£±í

ÓÐʱºòÎÒÃÇÐèÒª¿ÉÒÔ¸ßËÙ¼ìË÷µÄÁÐ±í£¬×ÔÈ»»áÏëµ½¹þÏ£±í£¬Æ½Ê±ÎÒÃÇ¿ÉÄÜÏëµ½ÓÃIniFilesµ¥ÔªÀïµÄTHashedStringList£¬µ« THashedStringListÿ´ÎÐÂÔöÒ»¸öItemºó¶¼ÐèҪˢÐÂÒ»±é£¬Êý¾Ý¶àÁË¿ÉÄÜ»áÓеãÂý£¬¸Ð¾õ²»Ì«ºÃ£¬¶øTStringHashÔòÖ»ÄÜ´æ IntegerÐ͵Ä(ËäÈ»ÎÒÃÇ¿ÉÒ԰ѱðµÄ¶«Î÷Ç¿ÖÆת³ÉÕûÐÍ´æ½øÈ¥£¬µ«¸Ð¾õ²»Ì«ºÃ)¡£TStringHashÒѾ­Ê ......

DelphiÖÐʵÏÖÎļþ¿½±´µÄÈýÖÖ·½·¨

1£®µ÷ÓÃAPIº¯Êý
procedure CopyFile(fromFileName,ToFileName:string);
var
f1,f2:file;
Begin
AssignFile(f1,fromFileName); file://Ö¸¶¨Ô´ÎļþÃû
AssignFile(f2,ToFileName); file://Ö¸¶¨Ä¿±êÎļþÃû
Reset(f1);
Try
Rewrite(f2);
Try
If Lzcopy(TfileRec(f1).handle,TfileRec(f2).Handle)<0
Then
Raise ......

delphi ½ðɽ´Ê°ÔÆÁĻȡ´Ê¼¼ÊõµÄ½éÉÜ

ÅóÓÑ£¬ÏÈÒªµ¼Èë XDICTGRB_TLB £¬È»ºóÓÃÏÂÃæµÄsource£¬×¢ÒâTForm1 = class(TForm,IXDictGrabSink) //!!!
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, OleServer, XDICTGRB_TLB;
type
TForm1 = class(TForm,IXDictGrabSink) //!!!
GrabPro ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ