本文以实例演示Rect、Bounds生成TRect的区别，实例代码如下：
unitUnit1;
interfaceusesWindows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,Dialogs, StdCtrls, ExtCtrls;
typeTForm1 = class(TForm)Button1: TButton;
RadioGroup1: TRadioGroup;
procedure RadioGroup1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
end;
varForm1: TForm1;
implementation{
$R *.dfm}
varR: TRect;
procedure TForm1.FormCreate(Sender: TObject);
beginRadioGroup1.Items.CommaText := 'Undo,Rect,Bounds';
R := Button1.BoundsRect;
end;
procedure TForm1.RadioGroup1Click(Sender: TObject);
begincase RadioGroup1.ItemIndex of0: Button1.BoundsRect := R;
1: Button1.BoundsRect := Rect(50,50,100,80);
{
参数3、4 是一个点}
2: Button1.BoundsRect := Bounds(50,50,100,80);
{
参数3、4 分别是宽度与高度}
end;
end;
end.
最终实现效果图如下：
