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unit frmTestEmbedApp;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls;
type
TForm1 = class(TForm)
pnlApp: TPanel;
procedure FormCreate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure FormResize(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
hWin: HWND = 0;
implementation
{$R *.dfm}
type
// 存储窗体信息
PProcessWindow = ^TProcessWindow;
TProcessWindow = record
ProcessID: Cardinal;
FoundWindow: hWnd;
end;
// 窗体枚举函数
function EnumWindowsProc(Wnd: HWND; ProcWndInfo: PProcessWindow): BOOL; stdcall;
var
WndProcessID: Cardinal;
begin
GetWindowThreadProcessId(Wnd, @WndProcessID);
if WndProcessID = ProcWndInfo^.ProcessID then begin
ProcWndInfo^.FoundWindow := Wnd;
Result := False; // 已找到，故停止 EnumWindows
end
else
Result := True; // 继续查找
end;
// 由 ProcessID 查找窗体 Handle
function GetProcessWindow(ProcessID: Cardinal): HWND;
var
ProcWndInfo: TProcessWindow;
begin
ProcWndInfo.ProcessID := ProcessID;
ProcWndInfo.FoundWindow := 0;
EnumWindows(@EnumWindowsProc, Integer(@ProcWndInfo)); // 查找窗体
Result := ProcWndInfo.FoundWindow;
end;
// 在 Panel 上内嵌运行程序
function RunAppInPanel(const AppFileName: string; ParentHandle: HWND; var WinHandle: HWND): Boolean;
var
si: STARTUPINFO;
pi: TProcessInformation;
begin
Result := False;
// 启动进程
FillChar(si, SizeOf(si), 0);
si.cb := SizeOf(si);
si.wShowWindow := SW_SHOW;
if not CreateProcess(nil, PChar(AppFileName), nil, nil, true,
CREATE_NEW_CONSOLE or NORMAL_PRIORITY_CLASS, nil, nil, si, pi) then Exit;
// 等待进程启动
WaitForInputIdle(pi.hProcess, 10000);
// 取得进程的 Handle
WinHandle := GetProcessWindow(pi.dwProcessID);
if WinHandle > 0 then begin
// 设定父窗体
Windows.SetParent(WinHandle, ParentHandle);
// 设定窗体位置
SetWindowPos(WinHandle, 0, 0, 0, 0, 0, SWP_NOSIZE or SWP_NOZORDER);
// 去掉标题栏
SetWindowLong(WinHandle, GWL_STYLE, GetWindowLong(WinHandle, GWL_STYLE)
and (not WS_CAPTION) and (not WS_BORDER) and (not WS_THICKFRAME));
Result := True;
end;
// 释放 Handle
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
// 退出时向内嵌程序发关闭消息
if hWin > 0 then PostMessage(hWin, WM_CLOSE, 0, 0);
end;
procedure TForm1.FormCreate(Sender: TObject);
const
App = ‘C:\Windows\Notepad.exe‘;
begin
pnlApp.Align := alClient;
// 启动内嵌程序
if not RunAppInPanel(App, pnlApp.Handle, hWin) then ShowMessage(‘App not found‘);
end;
procedure TForm1.FormResize(Sender: TObject);
begin
// 保持内嵌程序充满 pnlApp
if hWin <> 0 then MoveWindow(hWin, 0, 0, pnlApp.ClientWidth, pnlApp.ClientHeight, True);
end;
end.
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