我想从Delphi启动一个应用程序,并获取其句柄,以便我可以将该应用程序的主窗口嵌入到TFrame类型的框架中。目前为止,我已经尝试了以下方法:
Function TFrmEmbeddedExe.StartNewApplication : Boolean;
var
SEInfo: TShellExecuteInfo;
ExitCode : DWORD;
begin
FillChar(SEInfo, SizeOf(SEInfo), 0) ;
SEInfo.cbSize := SizeOf(TShellExecuteInfo) ;
with SEInfo do
begin
fMask := SEE_MASK_NOCLOSEPROCESS;
Wnd := self.Handle;
lpFile := PChar(self.fexecuteFileName) ;// Example could be 'C:\Windows\Notepad.exe'
nShow := SW_SHOWNORMAL;//SW_HIDE;
end;
if ShellExecuteEx(@SEInfo) then
begin
sleep(1500);
self.fAppWnd := FindWindow(nil, PChar(self.fWindowCaption)); //Example : 'Untitled - Notepad'
if self.fAppWnd <> 0 then
begin
Windows.SetParent(self.fAppWnd, SEInfo.Wnd);
ShowWindow(self.fAppWnd, SW_SHOWMAXIMIZED);
result := true;
end
else
result := false;
end
else
result := false;
end ;
上述代码实际上是可行的,但是
findWindow
会找到我启动的任何应用程序的实例。我想嵌入我Shellexecuted的确切实例。因此,如果记事本已经启动了几次,使用FindWindow就无法获取正确的实例。我尝试过:
Function TfrmEmbeddedExe.CreateProcessNewApplication : Boolean;
var
zAppName: array[0..512] of char;
StartupInfo: TStartupInfo;
ProcessInfo: TProcessInformation;
Res : DWORD;
DoWait : Boolean;
begin
DoWait := False;
StrPCopy(zAppName, self.fexecuteFileName); //'C:\Windows\Notepad.exe'
FillChar(StartupInfo, Sizeof(StartupInfo), #0);
StartupInfo.cb := Sizeof(StartupInfo);
StartupInfo.dwFlags := STARTF_USESHOWWINDOW;
StartupInfo.wShowWindow := SW_SHOWNORMAL;
if CreateProcess (zAppName,
nil, { pointer to command line string }
nil, { pointer to process security attributes }
nil, { pointer to thread security attributes }
false, { handle inheritance flag }
CREATE_NEW_CONSOLE or { creation flags }
NORMAL_PRIORITY_CLASS,
nil, { pointer to new environment block }
nil, { pointer to current directory name }
StartupInfo, { pointer to STARTUPINFO }
ProcessInfo) then { pointer to PROCESS_INF }
begin
if DoWait then //just set it to false... so it will never enter here
begin
WaitforSingleObject(ProcessInfo.hProcess, INFINITE);
GetExitCodeProcess(ProcessInfo.hProcess, Res);
end
else
begin
self.fAppWnd := ProcessInfo.hProcess;
Windows.SetParent(self.fAppWnd, self.Handle);
ShowWindow(self.fAppWnd, SW_SHOWMAXIMIZED);
CloseHandle(ProcessInfo.hProcess);
CloseHandle(ProcessInfo.hThread);
end;
result := true;
end
else begin
Result := false;
end;
end;
请不要运行上面的代码!它会产生奇怪的结果,包括选择所有正在运行应用程序中的一个看似随机的窗口并嵌入其中(甚至是来自Windows开始菜单的菜单项..)
所以基本上我需要的是如何启动一个应用程序,并获取应用程序主窗口的句柄。