摘要： 问题来源: http://www.cnblogs.com/del/archive/2008/05/19/1089437.html#1203173 PChar 串是以 Null 结束的, 或者说是以 "空字节" 结束的; PChar 串见到 "空字节" 就认作结束了; "空字节" 在 Delphi 中可以用 #0 或 Chr(0) 来表示. //举例: var pc: PChar; begi... 阅读全文

摘要： AlphaBlend( DC: HDC; {目标设备环境句柄} p2, p3, p4, p5: Integer; {目标位置与宽高} DC6: HDC; {源设备环境句柄} p7, p8, p9, p10: Integer; {源位置与宽高} p11: TBlendFunction {合成方式的数... 阅读全文

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摘要： unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button... 阅读全文

摘要： 问题来源: http://www.cnblogs.com/del/archive/2008/05/15/1114450.html#1199402 本例效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, C... 阅读全文

摘要： unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; Button2: TButton... 阅读全文

摘要： unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; Button2: TButton... 阅读全文

摘要： 问题来源: http://www.cnblogs.com/del/archive/2008/05/14/1089344.html#1196271 本例效果图: 代码文件: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dia... 阅读全文

摘要： 本例效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; Button2:... 阅读全文

摘要： unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Memo1: TMemo; procedure FormCreate... 阅读全文