How to run a cmd command, and getting the output to a string variable? Example:
string result = ExecuteFunction("ipconfig");
Now "result" contains:
Windows IP Configuration
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
......
This shuld be happening without showing any cmd screen, all from the program. Windows platform of course.
You can build a pipe:
On Linux:
#include <cstdio>
#include <iostream>
#include <vector>
int main() {
FILE* fp = popen("ifconfig", "r");
if(fp) {
std::vector<char> buffer(4096);
std::size_t n = fread(buffer.data(), 1, buffer.size(), fp);
if(n && n < buffer.size()) {
buffer.data()[n] = 0;
std::cout << buffer.data() << '\n';
}
pclose(fp);
}
}
For Windows you might use '_popen' and change 'ifconfig' to 'ipconfig'
The standard solution for this problem since time immemorial is to use command line redirection to send standard output to a text file, and then read the file into a string.
You didn't provide enough context to respond with code. In C/C++ you could use _popen(). In .NET this answer might help. Redirect console output to textbox in separate program
