新建一应用程序,在窗体上放置一个ListView控件和一个按钮控件,然后粘贴以下代码,代码中的有关API和常量参考Windows单元,方法是按是Ctrl键,然后单击鼠标左键
unit Unit1;<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls;
type
TForm1 = class(TForm)
ListView1: TListView;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
const
LVM_GETHEADER =$1000+ 31;
var
hHeader: THandle;
style: dWord;
begin
hHeader := SendMessage(ListView1.Handle, LVM_GETHEADER, 0, 0);
style := GetWindowLong(hHeader, GWL_STYLE);
style := style xor $2;
SetWindowLong(hHeader, GWL_STYLE, style);
SetWindowPos(ListView1.Handle, Form1.Handle, 0, 0, 0, 0,SWP_NOZORDER or SWP_NOSIZE or SWP_NOMOVE or SWP_DRAWFRAME);
end;
end.
