Installing softwares using installers in Qt Application

arkenoid

Hii all..

I want to install some softwares from their .exe installers from the Qt application. For this i simply used this commands..

First Qprocess Header file is included and the following line is added after the main windows show line.

@process.start("cmd", QStringList() << "C:\CodeBlocks_setup.exe");@

But nothing is happening.. It is saying that an instance of CMD is running but no Installation wizard shows up..

But, if i enter the "C:\CodeBlocks_setup.exe" inside cmd prompt, the installation wizard shows up...

What is the problem with the Qt API above ?

arkenoid

Even as simple as
@process.start("cmd", QStringList() << "help");@
is not showing anything..

But, this should output the "help" command output in cmd.

MuldeR

Why not run the installer directly?
@QProcess process;
process.start("C:\CodeBlocks_setup.exe", QStringList());@

Anyway, if you want to use the command interpreter, then try:
@QProcess process;
QStringList args;
args << "/c";
args << "C:\CodeBlocks_setup.exe";
process.start("cmd.exe", args);@

__

See also:
[quote]C:\Users\MuldeR>cmd /?
Starts a new instance of the Windows command interpreter

/C Carries out the command specified by string and then terminates[/quote]

MuldeR

BTW: You may which to use "%COMSPEC%":http://en.wikipedia.org/wiki/ComSpec instead of hardcoding the path to the command interpreter ("cmd.exe"):

@const wchar_t envComSpec = _wgetenv(L"ComSpec");
const QString comSpec = QString::fromUtf16(reinterpret_cast<const ushort>(envComSpec ? envComSpec : L"cmd.exe"));
/.../
process.start(comSpec, args);@

arkenoid

Thanks MuldeR...

All of the above methods worked.. :D
I had already tried first method, but i guess i did somewhere wrong..

I never heard of ComSpec... Thankyou again...