Mega Code Archive
How to execute a document and wait for it to finish
<![CDATA[
Title: How to execute a document and wait for it to finish
uses
Shellapi;
function StartAssociatedExe(FileName: string; var ErrorCode: Cardinal): Boolean;
var
Prg: string;
ProcessInfo: TProcessInformation;
StartupInfo: TStartupInfo;
begin
SetLength(Prg, MAX_PATH);
Result := False;
ErrorCode := FindExecutable(PChar(FileName), nil, PChar(Prg));
if ErrorCode = 32 then
begin
SetLength(Prg, StrLen(PChar(Prg)));
FillChar(StartupInfo, SizeOf(TStartupInfo), 0);
with StartupInfo do
begin
cb := SizeOf(TStartupInfo);
wShowWindow := SW_SHOW;
end;
if CreateProcess(PChar(Prg), PChar(Format('%s %s', [Prg, FileName])),
nil, nil, False, NORMAL_PRIORITY_CLASS, nil, nil, StartupInfo, ProcessInfo) then
begin
WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
GetExitCodeProcess(ProcessInfo.hProcess, ErrorCode);
CloseHandle(ProcessInfo.hProcess);
CloseHandle(ProcessInfo.hThread);
Result := True;
end
else
ErrorCode := GetLastError;
end;
end;
Usage Example:
procedure TForm1.Button1Click(Sender: TObject);
var
ErrorCode: Cardinal;
begin
StartAssociatedExe('c:\test.doc', ErrorCode);
end;
]]>