Use SetWindowsHookEx() or SetWinEventHook() with a thread-local hook to capture the MessageBox() dialog’s HWND, then you can use EnableWindow() to disable the button. Here is how to do it using SetWindowsHookEx(): HHOOK hHook = NULL; LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam) { if( nCode == HCBT_ACTIVATE ) { HWND hDlg = (HWND) wParam; … Read more
<< >> These are the shift operators. They shift the left operand by the number of bits given in the right operand. The direction of the shift depends on which of the two operators was used. ^ This is the bitwise exclusive OR operator. The result will have bits set where only one of the … Read more
float x,i=~(257<<23),a,s,t;main(int n,char**f){a=-i;f=fopen(f[1],”r” );for(n=0;fscanf(f,”%f”,&x)>0;n++,s+=x,x<i?i=x:0,x>a?a=x:0,t+=x*x); printf(“%d %f %f %f %f\n”,n,a,i,s/n,sqrtf(t/n));} Sorry for the long code. Didn’t have time to make it shorter. 1 solved Read file with floats, calculate size, max, min, mean, median and standard deviaton in C [closed]
Use for this KeyDown event private void YourTextBox_KeyDown(object sender, KeyEventArgs e) { String connection= “Data Source=YourServer;Initial Catalog=YourDatabase;user=User;password=YourPassword;Integrated Security=True;”; if (e.KeyCode == Keys.Enter) { string insertCmdText = “INSERT INTO table(column1)values(@valueForColumn1)”; SqlCommand sqlCom = new SqlCommand(insertCmdText,connection); sqlCom.Paramaters.AddWithValue(“@valueForColumn1”,YourTextBox.Text); connection.Open(); sqlCom.ExecuteNonQuery(); connection.Close(); } } But consider that saving into Database after KeyPress event is not a right way to … Read more
std::copy is going to use vector as an array. You have to resize it, so it can store all needed values. You can also use std::back_inserter. It will resize vector when necessary. 4 solved What is wrong using c++ copy function?
Such amazing complexity for a simple problem. You don’t need arrays to do this, not even multi-dimensional arrays. int main() { int count = 0; for (int i = 1; i <= 100; ++i) { if (is_prime(i)) { cout << i << ‘ ‘; ++count; if (count == 5) { cout << endl; count = … Read more
If I understand the function of sscanf_s correctly from Martin Bonner’s explanation, you are looking for how to convert a string that represents hexadecimal digits into an int. You can do so with the following: iHex = Convert.ToInt32(sHex, 16); This being said, whether or not you want to actually use int for your conversion result … Read more
Assumming at the moment you are simply setting the .Text value equal to you new value, as below: richTextBox1.Text = “Some More Text”; When you do this you are changing the string value to you new value only. What you need to do is append the string you wish to add to end of the … Read more
In the real world, dynamic allocation is slower than automatic allocation. That’s true — at least in general. That doesn’t mean that dynamic allocation is too slow. The only way to determine that is to profile your code. Until you have done that, it is impossible to say that you should abandon dynamic allocation because … Read more
The algorithm follows from what you have. Structure your while-loop like this: while(!fin.eof()) { bool found = false; do { fin.get(ch); found = found || ch == ‘d’; } while (ch == ‘d’ && fin); if (found && ch == ‘o’) { // boom goes the dynamite } } The purpose of the do-while is … Read more
You have source files card.c, deck.c, and main.c. It is reasonable to suppose that card.c and deck.c each define functions, at least one of which is called by something in main.c, else there would be no need for your header.h. Presumably, the functions named in your link errors are among those. The command gcc main.c … Read more
This line is wrong: keyw(str); Instead of that you need: keyw(&str); The function keyw(char *p) needs a pointer or an address. solved Conversion not valid from char to const char*
You have two bad practices going on here. First, you should use sql parameters instead of simply concatenating them; to avoid SQL injection. Read here. Second, don’t do an insert in a HTTP GET (Page_Load). You should do this in a HTTP POST and then redirect to an HTTP GET again (PRG pattern). The reason … Read more
You might just be asking the wrong question only due to your lack of knowledge about features in the language. Checking every 2 seconds, you could look into running a separate task that delays 2000 milliseconds and checks and does something. You could have a backgroundworker thread doing similar. You could create public getter/setter so … Read more
I believe this is a Home work question! Anyways write a separate method void GetTenNumbers(int arr[]){ for(int counter =0; counter <10; counter ++){ cout<<“Enter number “; cin>> arr[counter]; } } and do something like this case 1: { cout<<“Enter 10 numbers: “; GetTenNumbers(arr); break; } solved How do i enter 10 numbers in array? [closed]