delphi Èý·½¿Ø¼þ
VCLÖеÄShapeÊǸöºÜ²»´íµÄ¿Ø¼þ£¬¿ÉÒÔÑ¡Ôñ¼¸ÖÖͼÐΣ¬ÒÔÂú×ãÎÒÃǵÄÐèÇ󣬵«ÓÐʱºò¾ÍÊǾõµÃËüµÄ¿ÉѡͼÐÎÉÙÁËÒ»µã£¬±ÈÈçÎÒÃÇÏëÒªÒ»¸öÈý½ÇÐΣ¬ËüȴûÓС£ÓÚÊǾÍÏëµ½À´À©Õ¹Ò»ÏÂÕâ¸ö¿Ø¼þ£¬ÃûΪShapeEx¡£ÆäʵÀ©Õ¹µÄ¹¦Äܲ»¶à£¬Ö»ÊÇÔö¼ÓÁËһЩͼÐΡ£¶øÀàÒ²²¢²»ÊǼ̳Ð×ÔTShape£¬¶øÊǼ̳Ð×ÔTGraphicControl£¬ÕâÑù¿ÉÒÔÈÃÎÒÃdz¹µ×¿´¿´Í¼ÐοؼþµÄ×ö·¨¡£TshapeÒ²ÊǼ̳Ð×ÔTGraphicControl¡£¶øÎÒÃǵÄÀ©Õ¹¿Ø¼þ¹¦ÄÜÊÇ»ùÓÚShapeµÄÀ©Õ¹£¬ËùÒÔµ±È»ÀïÃæµÄ´úÂ뼸ºõÈ¡Ö®TShape£¬Ö»ÊǼÓÁËһЩÀ©Õ¹Í¼ÐεĴúÂ룬µ«ÓÖÓÐʲô¹ØϵÄØ£¬VCLÔ´ÂëÊÇ×îºÃµÄѧϰ×ÊÔ´£¬ÎÒÃǺβ»È¡Ö®ÓÃÖ®¡£
ºÜ¶à¶«Î÷ÎÒÃÇÒѾÔÚÉÏÃæ˵¹ýÁË£¬ÕâÀï²»¶à˵ÁË£¬ÎÒÒªÖ±ÈëͼÐοؼþµÄÖص㡣ͼÐοؼþ²»ÊÇ·â×°WindowsµÄ¿Ø¼þ£¬¶øÊÇDelphi×Ô¼º»³öÀ´µÄ£¬ÄÇôËü¿Ï¶¨ÓÐÒ»¸ö»¿Ø¼þµÄº¯Êý¡£Õâ¸öº¯Êý¾ÍÊÇ:
Paint;
¿´Ò»ÏÂVCLÔ´Â룬¿ÉÒÔÖªµÀËü¶¨ÒåÔÚTGraphicControl¡£ÖУº
procedure Paint; virtual;
ÕâÊÇÒ»¸öÐ麯Êý£¬ÄÇôËüµÄʵÏÖÊÇÔõôÑùµÄÄØ£¬µã»÷¿´ËüµÄʵÏÖÈçÏ£º
procedure TGraphicControl.Paint;
begin
end;
ÀïÃæʲôÂëҲûÓУ¬Õâ¸öºÜÈÝÒ×Àí½â£¬ÒòΪËü²»¿ÉÄÜÖªµÀËûµÄ×ÓÀàµÄͼÐÎÊÇʲôÑù×ӵġ£ËùÒÔÉèΪÐ麯Êý£¬ÓÉËüµÄ×ÓÀàÀ´¸²¸ÇËü¡£
ÄÇôÊÇ˵÷ÓÃÁËÕâ¸öº¯ÊýÀ´ÒýÆð»¿Ø¼þÄØ¡£WindowsÓÐÒ»¸öWM_PAINT;ÏûÏ¢£¬µ±Ò»ÇÐÒýÆðÖØ»µÄÌõ¼þ·¢Éú£¬Ôò»á·¢ËÍÕâÌõÏûÏ¢£¬ÔÙ¿´¿´TGraphicControl£¬¹ûÈ»ÓнػñÕâ¸öÏûÏ¢£º
procedure WMPaint(var Message: TWMPaint); message WM_PAINT;
ÔÚ´¦Àíº¯ÊýÀïÃ棬µ÷ÓÃÁËPaint·½·¨£¬´Ó¶øʵÏÖÁ˻ͼÐοؼþ¿ÉÄÜ£º
procedure TGraphicControl.WMPaint(var Message: TWMPaint);
begin
if Message.DC <> 0 then
begin
Canvas.Lock;
try
Canvas.Handle := Message.DC;
try
Paint; //µ÷ÓÃÁËÕâ¸öº¯ÊýÀ´»Í¼Ðοؼþ
finally
Canvas.Handle := 0;
end;
finally
Canvas.Unlock;
end;
end;
end;
¶øËüµÄ×ÓÀา¸ÇÁËPaintº¯Êý£¬ËùÒÔÏûÏ¢´¦Àíº¯Êýµ÷ÓõÄʵ¼ÊÉÏÊÇij¸ö×ÓÀàµÄPaint·½·¨£
Ïà¹ØÎĵµ£º
Delphi±àдϵͳ·þÎñÒ»£ºÈçºÎ±àдһ¸öϵͳ·þÎñ ÊÕ²Ø
´ò¿ªDelphi±à¼Æ÷£¬Ñ¡Ôñ²Ëµ¥ÖеÄFile|New|Other...£¬ÔÚNew ItemÖÐÑ¡ÔñService ApplicationÏDelphi±ã×Ô¶¯ÎªÄ㽨Á¢Ò»¸ö»ùÓÚTServiceApplicationµÄй¤³Ì£¬TserviceApplicationÊÇÒ»¸ö·â×°NT·þÎñ³ÌÐòµÄÀ࣬Ëü°üº¬Ò»¸öTService1¶ÔÏóÒÔ¼°·þÎñ³ÌÐòµÄװж¡¢×¢²á¡¢È¡Ïû· ......
ÓÃwebbrowser¿Ø¼þµÇ¼ºÍÏÔʾÍøÒ³
MSHTMLÊÇ΢Èí¹«Ë¾µÄÒ»¸öCOM×é¼þ£¬¸Ã×é¼þ·â×°ÁËHTMLÓïÑÔÖеÄËùÓÐÔªËؼ°ÆäÊôÐÔ£¬Í¨¹ýÆäÌṩµÄ±ê×¼½Ó¿Ú£¬¿ÉÒÔ·ÃÎÊÖ¸¶¨ÍøÒ³µÄËùÓÐÔªËØ£®MSHTML¶ÔÏóÄ£ÐÍÊÇÓÉһЩ¶ÔÏóºÍ¼¯ºÏ×é³ÉµÄ£®´¦ÓÚ¸ù²¿µÄÊÇHTML£¬ÃèÊöÁË´ò¿ªÒ³ÃæµÄ1¸ö´°¿Ú£¬°üÀ¨Ò»ÏµÁм¯ºÏºÍ¶ÔÏó¡£ÈçFrames¼¯ºÏ£¬History£¬Location£¬Navigat ......
Delphi ÖÐWebBrowser¿Ø¼þÏê½âʵÀý ת
2008-05-07 12:07
ºÜ¾Ã¶¼Ã»ÓÐÔ´´ÁË£¬Ç°¼¸Ìì°ïÅóÓÑ×öÁ˸öÍøÖ··¢²¼³ÌÐò£¬Ö÷ÒªÓ¦Óõ½ÁËWebBrowser¿Ø¼þ¡£
½ñÌìÖ÷Òª¸ø´ó¼ÒÑÝʾһϹý³Ì£¬Èôó¼ÒѧϰһÏÂDelphi¹¤¾ß¡£
WebBrowser¹¦ÄÜ£º
1¡£×Ô¶¯¼ÓÔØÍøÒ³
2¡£È¥³ýWebBrowser¹ö¶¯Ìõ
3¡£WebB ......
procedure mc_SplitStr(sourStr:String;splitChar:String;desLst:TStringList);
var
tmpStr:String;
sValue:String;
iStart,iPos:Integer;
begin
try
desLst.Clear; //ºÜÖØÒª£¬·ñÔò£¬»áÒ» ......
TreeViewÓɽڵ㹹³É£¬½¨Ê÷ͨ¹ý¶ÔTreeView.itemsÊôÐÔ½øÐвÙ×÷¡£ItemsÊÇÒ»¸öTTreeNodes¶ÔÏó£¬ÕâÊÇÒ»¸öTTreeNode¼¯¡£
Ò»¡¢Õë¶ÔTTreeNodes,Ò²¾ÍÊÇ TreeView.Items,ÓÐÕâЩÊôÐÔ£º
1¡¢count£¬½Úµã¸öÊý¡£
2¡¢item[index] ,ͨ¹ýindexµÃµ½½Úµã¡£
¶þ¡¢Õë¶ÔTTreeNodes,Ò²¾ÍÊÇ TreeView.Items,³£ÓõÄÌí¼Ó½ÚµãµÄ²Ù×÷ÓУº
Add ......