Question

Im trying to make a Mac application that speaks user inputed NSTextField text using “system” to use the say command in terminal. However, Xcode keeps giving errors.

- (IBAction)speak:(id)sender{
    system("say %@", [textinput stringValue]);
}

*textinput is the IBOutlet of the NSTextField.

Answer 1

System takes a single char* as an argument, so you have to format the command string before you can pass it to system:

- (IBAction)speak:(id)sender {
    NSString *command = [NSString stringWithFormat:@"say %@", [textinput stringValue]];
    system([command UTF8String]);
}