I have an array of pixels now the array is built up like this
unsigned char* blue = new unsigned char[W*H*3];
each pixel consists out of 3 chars B,G,R so pixel one is
blue[i] = 255;
blue[i + 1] = 0;
blue[i + 2] = 0;
now I can loop though the whole array and clear the array one pixel at a time to the color i want, but what i really want to do is just set the whole array to a color.
I could do something like this
memset(blue, 255, W*H*3);
but then i set all the color values to 255 and then i get white.
so my question is is there a fast way to fill an array with lets say a smaller array?
I'm trying to make a character array, and be able to custom fill it by using the scanf() function to ask the user for each character spot in the array.
Code: #include <stdio.h> int main() { int i; char character_array[11]; char *charpointer; charpointer = character_array;
[Code] .....
And this is the output i get when i run it:
Code: root@kali-Tulips:~# ./myown what letter would you like in the [0] spot of the array? : a what letter would you like in the [1] spot of the array? : what letter would you like in the [2] spot of the array? : b what letter would you like in the [3] spot of the array? : what letter would you like in the [4] spot of the array? :
[Code] .....
Obviously I'm trying to grasp C programming and am very new. I don't understand why this isn't working, and i think its more than my lack of knowledge of C syntax. I believe the correct memory is allocated but when examined with gdb i don't find what i expect....
#include <iostream> #include <fstream> #include <cstdlib> #include <ctime> using namespace std; int main () { ofstream fout("datain.txt",ios::out); int array[6][6];
I have a struct called Array and I'm to create a function to create a dynamic array that's fill with randomly generated integers from 0 to 50 (inclusive) and a function to destroy the array for freeing its memory. Below the code that I have written so far.
Code:
* Struct */ typedef struct {int *pArray; //the dynamic array int length; //the size of the dynamic array}Array; /* Function to create a dynamic array */ Array *initializeArray (int length) {int i; }
I'm writing a program in which I have to use a matrix to represent a file in code. because it's a file, the size of the matrix is undefined, and therefore the matrix has to be dynamic. I found out that my compiler doesn't like dynamic multidimensional arrays, so I was thinking of this matrix as a dynamic (monodimensional) array of other dynamic (monodimensional) arrays. My program (and thus this example) uses unsigned chars.
Here is my source code i am trying to write a function (fillAll) to fill all 52 cards in a deck and i would like to use my data struct for the function and make Deck one of my parameters.
so im trying to make a background for a menu, but it is only so big. its not the kind of picture where i can just reapply it. is there a function to make it fill to the screen?
So this is my working code with sql i want convert it so i can read it from xml, basiccl i need to fill empty list with xml column BrivDat..
var connStr = @"Data Source=(LocalDB)v11.0;" + @"AttachDbFilename=C:dbaseAdaPlus.mdf;Integrated Security=True"; List<DateTime> Holidays = new List<DateTime>(); using (SqlConnection conn = new SqlConnection(connStr)) using (SqlCommand cmdd = new SqlCommand("select * from Brivdienas", conn))
I am using koolplot plot graph and able to plot two lines in a graph. My question is how to fill between the lines? Is it possible to do so with koolplot? or i should use another library?
Write a menu driven program that will fill grid with values between 1 and 100. Begin the program by declaring a array of type int. Then present the user with the following menu
Enter 1 to add Enter 2 to edit Enter 3 to delete Enter 4 to search Enter 5 to display Enter 0 to Quit
Each item of the menu must be implemented as a function. The program should Only allow values between 1 and 100
Always ask the user to apply coordinates for the cell to be changed
Flag an error when try to delete or edit a cell with a zero (0)
Flag an error when try to add to a cell that is not blank
Display the complete and nicely formatted grid when option 5 is selected
I installed FLTK 1.3.X (from here [URL] ...) on my visual studio 2012 compiler and use PPP book for programming (this: [URL] ..... ). My problem is about filling a Shape in. For example , this code:
#include <Simple_window.h> using namespace Graph_lib; int main() { Simple_window win(Point(100,100), 1000, 600, "Binary_tree"); Graph_lib::Circle c(Point(200,200),50); c.set_color(Color::red);
[Code] ....
When I run the program, All three Shapes are drawn but only the Rectangle is filled in! Why?
set_color works for the three and apparently the set_fill_color is defined for all Shapes and it too should work but why it doesn't work for Circle and Ellipse?
I'm working on a personal project, where I have a database (SQLite) and a dataGridView. Now This is what I have:
public Form1() { DataSet ds = new DataSet(); SqlConnection connection = new SqlConnection(@"Data Source=testingsql2.s3db"); SqlDataAdapter SQLda = new SqlDataAdapter("Select * from User", connection); SqlCommandBuilder SQLcb = new SqlCommandBuilder(SQLda); dataGridView1.Fill(ds, "User"); //Error here dataGridView1.DataSource = ds; dataGridView1.DataMember = "User"; }
I've marked where I get the error.
And the Error description: Error 1 'System.Windows.Forms.DataGridView' does not contain a definition for 'Fill' and no extension method 'Fill' accepting a first argument of type 'System.Windows.Forms.DataGridView' could be found (are you missing a using directive or an assembly reference?)
I got this program to create an array of playing cards and assign the values and suits and shuffle the array. I'm at the point where I need to output the cards but I need to burn the first card by making it output "**" instead of the card. my cards[] is a constant so I can's assign the first card as such.
void showCards(const int cards[], int numCards, bool hideFirstCard) { if (cards[0]) { hideFirstCard=true; cards[0] = '**'; } for(int a = 0; a <= numCards; a++) { cout >> showCard(cards[a]); } }
Write a program using user-defined function which accepts an integer array and its size as arguments and assign the elements into a two dimensional array of integers in the following format: If the array is 1,2,3,4,5,6, the resultant 2D array is
The program should store a character array in reverse order then display the reversed array. I have also included in the code that will display the actual characters into the array as it loops through. So I know the characters are being stored, but why doesn't it display the entire string when I call it?
I'm in need of an algorithm to find the points within a triangle(vertices are known. 3d coordinates). The points are to be at same distance from one another i.e. the points are uniformly distributed within the triangle.
I have done a search about the topic and have come across some ideas like lattice points generation ,tiling polygons with Lattice triangles [URL] .... and taking their centroids as the points.
This code is for a member function called Triangle. It's a Draw() function that uses border characters and fill characters. I've been trying to work it out in a seperate file just so I can get it to work before I add it to my function definition.
#include <iostream> using namespace std; int main() { for(int i=1; i<=8; i++) { for(int sp=1; sp<=8-i; sp++) {
[code]....
I haven't attempted the fill characters (well... I have, but it was so wrong it was ridiculous). I need to get rid of the extra '*' at the very top. Here's an example of what this should look like...
I wrote this simplified version of a program i am writing that parses data in UDP packets. In the process of doing so i pretty much answered all my questions and fix all the problems i was having.
decodeSystemMap function will be in loop, and will proccess packets that have mostly the same data, only a few items will be added or changed or deleted.
whats the best way to check if there are any new, deleted, or removed items in the packet and only modify those? Is there anything unsafe / dangrous about the way the code is now?
Code: /* * File: main.c * Author: david * * Created on May 23, 2013, 11:57 AM */
im trying to read in 1 array and get 2 as outputs from 3 different functions.my read array is easy enough were im getting confused is how to read that array, separate it and take out only the parts i want and place them into a 2nd, then again a 3rd array.i have the following so far:
this compiles without a complaint, but when i go to run it no longer responds after taking the 10th element (well 9th if counting from 0).I think i have the if correct for the even odd section, but when i try to populate B or C array with the output of that if statement from A is were i think things are dying...
#include <iostream> #include<fstream> int decryption(int); int multiply(int,int[][2]); using namespace std; main(){ int n; ifstream inFile; inFile.open ("out.txt");
[Code] .....
I was trying to store numbers read from a text file into 2D array but I am getting the error above.here is where the error occurs:
Assume you want to use a loop to process an array of characters starting from the beginning of the array. You want the loop to stop when you read the null terminator character from the array. Fill in the loop test condition that will make this work correctly.
index = 0; ch = array[index]; while ( _____________________________) { // process the character index++; ch = array[index]; }
I know to read a strings into array and tables.. what is they are mixed up?? strings are just names ( 3 characters) and there are bunch of table.. the max size was set to 60
ex. text file
JES DAN JEN . . . 01010101 10010101 RAM JET 01010010 10100101 .... and so on
