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如何将Form2设置为“Send to back”以显示Image1给用户? 我使用Image1.BringToFront;但是这段代码不起作用!!
这是主要单位:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls;
type
TForm1 = class(TForm)
Panel1: TPanel;
Image1: TImage;
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
uses unit2;
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
tFrm2:Tform2;
begin
tFrm2:=Tform2.Create(self);
tFrm2.Parent:=self;
tFrm2.Align:=alClient;
tFrm2.Show;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
// Image1.BringToFront;
end;
end.
答案 0 :(得分:2)
您正在这样做,许多Form2实例可以堆叠在图像上,因此您可以搜索所有子表单(我的意思是,所有表单,其中父表单是Form1)并隐藏每个表单。最终结果是图像再次显示。
procedure TForm1.Button2Click(Sender: TObject);
var
I: Integer;
begin
for I := 0 to Screen.FormCount - 1 do
if (Screen.Forms[I].Parent = Self) then
Screen.Forms[I].Hide;
end;
最好的问候。