csdn代码收集

winexec('net use //xxx.xxx.xxx.xxx psw  /user:administrator',sw_hide);
先登陆到那台机子
然后就可以用"//"来访问了

sendmessage(self.handel,WM_CLOSE,0,0);//发送关闭窗口的消息

你的问题应该是窗体没有free掉
在formclose事件中写入 Action := CaFree;

怎样让Edit只能输入中文
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
  if ord(key)<128 then key:=#0;
end;
不过要判断一下delete和backspace
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
  if (ord(key)<128) then
  if (key<>#8) and (key<>#32) then key:=#0;
end;

edit组件中显示的文字,如何让它居中或者居右对齐啊!
不胜感谢
 

  
对着控件单击右键,有个 position  属性

 
 
Top 
 
 回复人： luke5678(奇异) ( ) 信誉：101  2004-9-23 10:23:56  得分: 0 
 
 
  
procedure TForm1.FormCreate(Sender: TObject);
begin
  SetWindowLong(Edit1.Handle, GWL_STYLE,
    GetWindowlong(Edit1.Handle, GWL_STYLE) + ES_CENTER); //居中
  Edit1.Refresh;

  SetWindowLong(Edit2.Handle, GWL_STYLE,
    GetWindowlong(Edit2.Handle, GWL_STYLE) + ES_RIGHT); //居右
  Edit2.Refresh;
end;

 
var
 defstyle: dWord;
begin
 defstyle := GetWindowLong(Edit1.Handle, GWL_STYLE);
 SetWindowLong(Edit1.Handle, GWL_STYLE, defstyle or ES_RIGHT)
end;

 
 
Top 
 
 回复人： lzy6204(为了忘却的记忆) ( ) 信誉：101  2004-9-23 10:36:40  得分: 20 
 
 
  
重载,自己写
[转]:将下面控件安装到你的delphi中就行了
--------------------------------------
unit AEdit;

interface

uses
  Windows,
  SysUtils,
  Messages,
  Classes,
  Graphics,
  Controls,
  Forms,
  Dialogs,
  Menus,
  StdCtrls,
  ExtCtrls;

type
  TEoCEdit = class(TEdit)
  private
    { Private declarations }
    FAlignment: TAlignment;
  protected
    { Protected declarations }
    function GetAlignment: TAlignment; virtual;
    procedure SetAlignment(newValue: TAlignment); virtual;
    procedure CreateParams(var Params: TCreateParams); override;
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
  published
    { Published properties and events }
    property Alignment: TAlignment read GetAlignment write SetAlignment;  { Published }
  end;  { TEoCEdit }

procedure Register;

implementation

function TEoCEdit.GetAlignment: TAlignment;
{ Returns the value of data member FAlignment. }
begin
  GetAlignment := FAlignment;
end;  { GetAlignment }

procedure TEoCEdit.SetAlignment(newValue: TAlignment);
{ Sets data member FAlignment to newValue. }
begin
  if FAlignment <> newValue then
  begin
    FAlignment := newValue;
    if not (csLoading in componentstate) then ReCreateWnd;
  end;
end;  { SetAlignment }

destructor TEoCEdit.Destroy;
begin
  inherited Destroy;
end;  { Destroy }

constructor TEoCEdit.Create(AOwner: TComponent);
{ Creates an object of type TEoCEdit, and initializes properties. }
begin
  inherited Create(AOwner);
  { Initialize properties with default values: }
  FAlignment := taLeftJustify;
end;  { Create }

procedure TEoCEdit.CreateParams(var Params: TCreateParams);
const
  Alignments: array[TAlignment] of WORD = (ES_LEFT, ES_RIGHT, ES_CENTER);
begin
  inherited CreateParams(Params);
  Params.Style := Params.Style or Alignments[FAlignment];
end;

procedure Register;
begin
  RegisterComponents('EoC', [TEoCEdit]);
end;  { Register }

end.
 
这段代码行
procedure TForm1.FormCreate(Sender: TObject);
begin
  SetWindowLong(Edit1.Handle, GWL_STYLE,
    GetWindowlong(Edit1.Handle, GWL_STYLE) + ES_CENTER); //居中
  Edit1.Refresh;

  SetWindowLong(Edit2.Handle, GWL_STYLE,
    GetWindowlong(Edit2.Handle, GWL_STYLE) + ES_RIGHT); //居右
  Edit2.Refresh;
end;

//opendialog的使用方法
if openDialog1.Execute then

   begin

   s:=ExtractFilePath(opendialog1.FileName);

   edit3.text:=s+'lklb.mdb';

   end;

 

  //显示内存总数，内存是使用率
label2.Caption:=
            formatfloat('#,###"KB"',mymemorystatus.dwTotalPhys/1024);
label4.Caption:=
            format('%d%%',[mymemorystatus.dwmemoryload]);