Windows form < Use texbox values for system commands

[peewster]

Hi all,

i just started playing with gui apps. My first test is a small ping app.

I've created a new project (windows forms) containing:

1: image
2: textbox
3: 2 x button (1 exit, 1 ping)

Now when i click on exit, the app extits... "really "

When i click on ping, i''m getting a popup with the information from the textfield. This is cool, but i want to run the system command ping with the textbox value.

This is what i have:

#pragma endregion
	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 Application::Exit();
			 }
	
	private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
				 
				 String^ result = textBox1->Text;
				 MessageBox::Show( result );
////////////// When i comment the messagebox and try:
                                 system("ping -n 2 " + result + " > C:\\pingtest.txt");
////////////// i get errors (shown below)
			 }
	private: System::Void textBox1_TextChanged(System::Object^  sender, System::EventArgs^  e) {
			 
			 }
};

ERROR:

error C2664: 'system' : cannot convert parameter 1 from 'System::String ^' to 'const char *'

Only with:

 
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
	 system("ping -n 2 www.google.nl > C:\\pingtest.txt");
}

it does work, but i can't use the textbox value.

So i need to convert "result" i think, but i don't know how to do this correctly and let ping run with the result as parameter

Any ideas ?