Execute a program and wait until it has finished. The following example uses the ShellExecuteEx API function.
// Execute the Windows Calculator and pop up
// a message when the Calc is terminated.
uses ShellApi;
...
var
SEInfo: TShellExecuteInfo;
ExitCode: DWORD;
ExecuteFile, ParamString, StartInString: string;
begin
ExecuteFile:='c:\Windows\Calc.exe';
FillChar(SEInfo, SizeOf(SEInfo), 0) ;
SEInfo.cbSize := SizeOf(TShellExecuteInfo) ;
with SEInfo do begin
fMask := SEE_MASK_NOCLOSEPROCESS;
Wnd := Application.Handle;
lpFile := PChar(ExecuteFile) ;
{
ParamString can contain the
application parameters.
}
// lpParameters := PChar(ParamString) ;
{
StartInString specifies the
name of the working directory.
If ommited, the current directory is used.
}
// lpDirectory := PChar(StartInString) ;
nShow := SW_SHOWNORMAL;
end;
if ShellExecuteEx(@SEInfo) then begin
repeat
Application.ProcessMessages;
GetExitCodeProcess(SEInfo.hProcess, ExitCode) ;
until (ExitCode <> STILL_ACTIVE) or
Application.Terminated;
ShowMessage('Calculator terminated') ;
end
else ShowMessage('Error starting Calc!') ;
end;
