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CombineRgn( p1: HRGN; {合成后的区域} p2, p3: HRGN; {两个原始区域} p4: Integer {合并选项; 见下表} ): Integer; {有四种可能的返回值} //合并选项: RGN_AND = 1; RGN_OR = 2; RGN_XOR = 3; RGN_DIFF = 4; RGN_COPY = 5; {复... 阅读全文
posted @ 2008-05-26 23:17
万一
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本例效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs; type TForm1 = class(TForm) procedure FormClick(Sender: TObject); ... 阅读全文
posted @ 2008-05-26 17:01
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) procedure FormPaint(Sender: TO... 阅读全文
posted @ 2008-05-26 16:22
万一
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本例效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs; type TForm1 = class(TForm) procedure FormPaint(Sender: TObject); ... 阅读全文
posted @ 2008-05-26 15:25
万一
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本例效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs; type TForm1 = class(TForm) procedure FormPaint(Sender: TObject); ... 阅读全文
posted @ 2008-05-26 15:20
万一
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本例效果图: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs; type TForm1 = class(TForm) procedure FormPaint(Sender: TObject); ... 阅读全文
posted @ 2008-05-26 15:14
万一
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不管什么曲线命令, 到来路径中都会变成 Bezier 线; 也就是说路径中只有直线和 Bezier 线. FlattenPath 和 WidenPath 都能够把路径中的 Bezier 线转换为近似的直线; 不同的是: 用 WidenPath 转换后貌似加宽了线, 其实它是转换成了一个包围路径的新路径(类似区域). 本例效果图: 代码文件: unit Unit1; interface u... 阅读全文
posted @ 2008-05-26 13:46
万一
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本例效果图: 代码文件: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls; type TForm1 = class(TForm) Memo1: TMemo;... 阅读全文
posted @ 2008-05-26 11:48
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