WinApi:GetParent、SetParent、MoveWindow-获取、指定父窗口和移

WinApi:GetParent、SetParent、MoveWindow-获取、指定父窗口和移动窗口

2009-11-1914:22

提示:SetParent应该Windows.SetParent,因为TForm的父类有同名方法.

//声明:

{获取父窗口句柄}

GetParent(hWnd:HWND):HWND;

{指定父窗口}

SetParent(

hWndChild:HWND;{子句柄}

hWndNewParent:HWND{父句柄}

):HWND;{成功返回原父窗口句柄;失败返回0}

{移动窗口}

MoveWindow(

hWnd:HWND;{窗口句柄}

X,Y:Integer;{位置}

nWidth,nHeight:Integer;{大小}

bRepaint:BOOL{True表示刷新;False表示不刷新}

):BOOL;

//举例:

unitUnit1;

interface

uses

Windows,Messages,SysUtils,Variants,Classes,Graphics,Controls,Forms,

Dialogs,StdCtrls,ExtCtrls;

type

TForm1=class(TForm)

Edit1:TEdit;

Button1:TButton;

procedureButton1Click(Sender:TObject);

end;

var

Form1:TForm1;

implementation

{$R*.dfm}

procedureTForm1.Button1Click(Sender:TObject);

begin

ifGetParent(Edit1.Handle)=Handlethen

begin

Windows.SetParent(Edit1.Handle,Button1.Handle);

MoveWindow(Edit1.Handle,0,0,Edit1.Width,Edit1.Height,True);//这句可以不要

endelsebegin

Windows.SetParent(Edit1.Handle,Self.Handle);

MoveWindow(Edit1.Handle,0,0,Edit1.Width,Edit1.Height,True);//这句可以不要

end;

end;

end.

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