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BeginPath {路径开始} EndPath {路径结束} StrokePath {绘制路径} FillPath {填充路径} StrokeAndFillPath {绘制并填充路径} //在路径中可以使用的图形命令有: AngleArc Arc ArcTo Chord CloseFigure Ellipse ExtText... 阅读全文
posted @ 2008-05-23 22:39
万一
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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
posted @ 2008-05-23 15:59
万一
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SetRectEmpty: 使矩形为空; IsRectEmpty: 判断矩形是否为空; 所谓矩形为空就是矩形是无区域的, 或者说是 Right unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs; type T... 阅读全文
posted @ 2008-05-23 13:16
万一
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本例分别用五种办法初始化了同样的一个矩形, 运行效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1:... 阅读全文
posted @ 2008-05-23 11:50
万一
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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; procedur... 阅读全文
posted @ 2008-05-23 00:13
万一
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