Thread: How to run an another app from C++?

Greetings!

I'm doing well with my program, and an another problem occured.
How can I run an another app from my program?
For Example I'd like to run excel, with a path parameter.

I tried the

Code:

execlp("c:\\Program Files\\Microsoft Office\\Office10\\Excel.exe",dataBuffer);

code, but I get an exception, and of course except does not run.
Is there any other function to do this?

Thanks again
Han

Does Excel take the parameter when entered at the prompt?

http://faq.cprogramming.com/cgi-bin/...&id=1043284392

So I keep trying and trying...
Here's my next try:

Code:

Variant V  = Variant::CreateObject("Excel.Application");
  V.OlePropertySet("Visible", true);
  V.OleFunction("Quit");
  V = Unassigned;

This code actually DOES run Excel. So my next task is to get it the necessarry parameters. Suggestions? Ideas?

Thx
Han

Use ShellExecuteEx, and pass in LPSHELLEXECUTEINFO struct which contain your parameters.

Use ShellExecute and have it open the excel file that is given.

ShellExecute(hwnd, "open", databuffer, NULL, SW_SHOWNORMAL);


hwnd is the handle of your window

databuffer contains the full path and file name

SW_SHOWNORMAL can be changed to any other of the predefined constants. Whatever you want basically.

It works!
Thanks a lot!

But it isn't over yet

My next question is about Visual Basic, sorry for asking it here. But there are just so many helpful people. Some of you surely knows VB in Excel.
So my next question is:
How can I close excel in an excel macro?

Han

I changed my mind about closing excel from the inside. Now I'll close Excel from my C++ program. I'll set a timer to an interval, which is surely longer than the time needed to do the Excel macro functions. But I haven't found in the help or on this side anything about closing a program, which was opened by "Shellexecute".
How should I do that?

Han

Greetings!

I'm stuck again with app running.

I made my application run Excel with the required parameters, and it works very well. The app is now classified "complete" -at least that was what I've thought before making a real app from my program code.

When I chose the "make" option, an exe file was created -my app- and I began testing it. It turned out, that it somehow does NOT run Excel when required. Why is that? I use the ShellExecute you suggested me. When running from the builder it DOES work. Why doesn't it work, when I run it from the exe file?

Thx
Han