C++ :: Move Mouse Pointer Automatically?
Mar 26, 2012How do I tell c++ to move the mouse in place x?
for example, I run a c++ program and the mouse moves to the top left corner of my screen.
How do I go about doing something like that?
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C++ :: How To Move Object From Right To Left Automatically And Opposite
Apr 13, 2014I'm using Visual C++ 2010 and SFML game library. I want to know how to move an object from right to left automatically and back left to right??
View 2 Replies View RelatedC++ :: Pacman Game - Move Smiley In Code Automatically And Stop Screen Flickering?
Dec 26, 2013So far I have managed to write the code for a simple game (resembling to "Pacman") :P. Now what I want is to move the smiley in the upper left-hand corner of the map "automatically" when the program runs and also want it to change it's direction to up or down when it touches the wall.
Also the screen is flickering when the program runs (due to re-printing the whole array?). I want to stop this flicker. Somebody suggested to use 'gotoxy' function.
Here's my code :
#include <iostream>
#include <conio.h>
#include <stdlib.h>
using namespace std;
void display (char array [10][25] , int row , int column) {
[Code] .....
C Sharp :: How To Move Points Of Chart In C# By Mouse
Nov 27, 2014I am Trying all the Time to implement in c# moving of points by using Mouse ( Web Applications) and save the new value in array. But not successful ...
View 3 Replies View RelatedVisual C++ :: SDI App - Constraint Mouse To Move Only Horizontal Direction If Shift Key Pressed
Apr 23, 2015In a SDI app, I constraint the mouse to move only an horizontal direction, if "Shift" key is pressed ... here is the code:
Code:
void CTestMouseView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) {
// TODO: Add your message handler code here and/or call default
if(GetKeyState(VK_SHIFT) < 0) {
CRect rect;
GetWindowRect(&rect);
GetCursorPos(&m_point);
[Code] ....
Nothing complicated, and it works well ... except one thing: when I press the shift key and the mouse is moving by SetCursorPos, is moving pretty slow ... why ? I can not figure out why ! For testing, I attached the test project ...
C++ :: Data Changes Automatically In Array
Dec 9, 2014I am trying to execute a very simple piece of code. But I am unable to find how the value of T[i][j] is changing all of a sudden. CODE:-
insert Code:
void initialize(float** &T,int NP,int D,int low,int high) {
int i = 0,j = 0;
T = (float **)malloc(NP*sizeof(float));
for(i = 0;i<NP;i++)
[code].......
C++ :: Does Int Vars Automatically Get Assigned (0)
Feb 13, 2015I am wondering if integers and unsigned integers automatically assigned to zero (0) upon declaration like so:
bool randomFunction() {
int i;
if (i == 0) {
return true; //Will most modern compilers return true here?
} else {
return false;
}
}
I am just curious as I have always initialized my ints/unsigned ints variables. Would save me a lot of typing if I didn't have to do this all of the time.
I know that floats and doubles you still have to initialize.
C++ :: Adding New String Automatically For Each Name
Sep 17, 2012Im doing a little game, casting dices etc. The problem is that the program will ask for player 1 then if i enter a name and enter it will ask for player two and so going on until i just press enter with a empty field and then continue the game.
The problem is i don't have any clue what code bits to start studying and how i shall lay it up, feels like i need a new string declaration automatically for each name.
C++ :: Template Parameter Automatically With Class Name
Mar 8, 2013I have a triple hierarchy class:
template<class T> class Singleton;
class Base;
class Sub : public Base, public Singleton<Sub>;
I' using underlying auto pointers, that's why Singleton is a template class and Sub passes itself as a template parameter. I'm developing Singleton and Base and a public API allows anyone to add their own sub classes. I actually want a real triple hierarchy like this:
template<class T> class Singleton;
class Base : public Singleton<Base>;
class Sub : public Base;
So that external developers don't have to worry about templates and complexity. The problem with this is that my implementation in Singleton will now call the constructor of Base whenever I create an instance of Sub (since the template parameter is Base).I was wondering if this could be done by pre-processor macros:
template<class T> class Singleton;
class Base : public Singleton<__CLASS_NAME__>;
class Sub : public Base;
Where __CLASS_NAME__ is the class name that will be replaced by the pre-processor. Theoretically this should be possible, since the __PRETTY_ FUNCTION__ macro actually returns the class name. The problem is that one cannot do string-manipulation to remove the function name from __PRETTY_FUNCTION__.
how I can accomplish this so that the Sub class is not aware of inheriting from a Singleton<template> class?
C++ :: Is Memory Freed Automatically In WxWidgets
May 7, 2013When using wxWidgets, i am tempted to deallocate memory using delete in the destructor, but my program crashes on closing. I try to do something like this:
class mainwnd:public wxFrame{
public:
mainwnd():wxFrame(NULL,wxID_ANY,wxT("test")){
menubar=new wxMenuBar;
[Code] .....
tell me why? and is it done automatically?
C++ :: Pointers To Automatically Null When Object Is Deleted
May 18, 2013Say I have an object and 10 pointers to it in several other objects of varying class types. if the object gets deleted, those pointers have to be set to null. normally I would interconnect the object's class with the classes which have pointers to it so that it can notify them it is being deleted, and they can set their pointers to null. but this also has the burden that the classes must also notify the object when THEY are deleted since the object will need a pointer to them as well. That way the object doesn't call dereference a dangling pointer when it destructs and attempts to notify the others.
Auto pointers and shared pointers are not what I'm looking for - auto pointers delete their object when they destruct, and shared pointers do the same when no more shared pointers are pointing to it. What I'm looking for is a slick method for setting all pointers to an object to null when the object destructs.
C++ :: Increasing Integers Automatically Within Two Dimensional Array
Nov 15, 2013I am new to programming all together but i have been writing a program in c++ and im coming up against an issue with my array.
#include<iostream>
#include<iomanip>
#include<string>
using namespace
int main () {
int a ;
int b ;
char answer ('Y') ;
[Code] ....
I am trying to get the program to increase say year one by 1 when the condition is met i have tried
if ( a >= 70 && a <= 100 && b == 1)
{grade [0][0] = 0 + 1;}
and
for (grade[0][0] = 0 ; a >= 70 && a <= 100 && b == 1 ; grade [0][0]++)
{grade [0][0]= 0 + 1 ;}
Now all that i want is that the array will take the information from int a and int b and then add 1 to the appropriate part of the array . I have tried putting it in deferent places but its not working for ether. the program will run but it will not add to the array.
C++ :: Typedefs Automatically Imported In Header Files?
Jul 7, 2014I recently noticed that I don't need to include the required header files inside header files that I have written myself. As as example, GLuint is defined using typedef unsigned int GLuint; inside glew.h. If I create a sample.hpp header file and mention GLuint without including glew.h, the compiler automatically works out that there is a typedef in glew.h. However, if I mention GLuint in a source file the compiler starts to complain. I have seen this happen in VS 2010 and 2013.
Edit: I should have mentioned that I am not including any other header files so I'm not indirectly including glew.h
In case you need to look at the code:
#ifndef CP_SHADER_LOADER_H
#define CP_SHADER_LOADER_H
namespace cp {
[Code].....
C/C++ :: Preprocess Source To Automatically Set Structure Field
Dec 15, 2013If we have to arrange large array structure, and we should also have to set a field which is the 'index' of elements in the structure array as:
typedef struct {
int index;
char [MENU_ELEMENTS_CHAR_MAX];
int value;
boolean enable;
} stc_MenuEntry;
const stc_MenuEntry GlobMenu[] =
[Code] ....
Suppose we have a lot of row like those written before: also many structured array , and we should mantain: inserting and deleting elements, without having to worry about index error insertion, what kind of preprocess should we choose to best perform the automatic field writing? Obviously we could set properly any array field as:
{
{START_INDEX, "menu_voice01",100, TRUE },
{NEXT_INDEX, "menu_voice02",100, TRUE },
{NEXT_INDEX, "menu_voice03",100, TRUE }
......
.....
};
Just to make the task easier, maybe to allow a 'program filter' to find and subtitute the field as required.
We should also put theese menu variable in RAM, and perform the field init, setting the index at run time, but if we want to save RAM (const attribute chosen) we must find a solution.
I thought about UNIX/LINUX OS filter like sed and awk which would maybe perform the task, before giving the source file to the building process, but I'm working on Windows environment and I don't know the appropriate tool to do this kind of work.
C++ :: Automatically Attaching Objects To Parent Class
Jul 8, 2013In my program, I create controls by deriving base objects of them I've made. These controls are then are attached within the OnCreate() function via a method I've created. For example:
Code:
class tChat: public TextBox {
public:
void OnKeyDown(UINT &KeyCode) {
if (KeyCode == VK_RETURN) {
MessageBox(NULL, "Pressed enter!", NULL, 0);
[Code] ....
The use of AddControl() feels quite redundant and is only their to parse a pointer to txtChat's Parent. I'm trying to see if it's possible to remove this line and automatically associate txtChat to fMain.
Currently my hierarchy looks like:
[User's derived Form] -> [MDIForm or Form] -> [FormBase] -> [Object]
[User's derived Control] -> [TextBox, etc..] -> [Control] -> [Object]
The user can then derive the Form and Controls and use their virtual OnEVENT functions to handle all the messages they expose.
So far my first concept is using the order-of-creation based on base-class constructor's being fired to determine which object is associated with what.
If I create a copy of a class (i.e. a Form-derived object), first the Form's constructor is fired, and then the constructor's of any class-based member-variables are fired. Is this a safe assumption? I imagine the only time this could be affected is by another thread creating the object of a Form or Control derivative?
If this assumption is true, I could save the 'this' pointer from the FormBase constructor, and then associate it with each Control via the base Control class' constructor? Then to ensure thread-safety, I could map the current FormBase pointer to the local thread id to ensure no conflict if multiply threads are creating forms at the same time?
I've created some mock-up code before trying to implement this into my main code. The following keeps track of the current Form being created by using a ThreadId-based map. When a control is created it gets the FormBase pointer based of it's ThreadId calling. The control then calls an Attach() function of it's parent Form using the pointer it just got, and parses a pointer to the control. The Form then adds the control's pointer to a list. When the Form eventually parses WM_CREATE, it automatically pulls the controls from the list and fires their virtual Create() functions to build them.
Mock-up:
Code:
#include <Windows.h>
#include <string>
#include <map>
#include <list>
class FormBase;// Forward declaration
class FormMap;// Forward declaration
class Object {};// Base Object
[Code] ....
Is this plausible to use? I imagine C++ does not have many "guarantees" about how it creates objects and when. But I thought it would be safe that it would never create member-variables before the class of them is first created?
C++ :: Generate Data Set Of Angles Automatically And Provide Three Columns (Sin / Cos / Tan)
May 8, 2014Given an array of angles A = [0 30 60 90 120 150 180 210 240 270 300 330 360]
Write a program that will generate the data set of angles automatically and provide three columns; sin(angle), cos(angle), tan(angle). Make this program as compact and readable as possible.
C++ :: How To Automatically Go To Next Textbox If Input Char Reached Its Limit
Sep 6, 2013#include<windows.h>
#include<conio.h>
void gotoxy(int x,int y);
void gets_ex(char*, int max_chars);
int main(int argc, char *argv[]) {
char urname[16], surname[16], fullname[32];
start:
system("COLOR 1c");
[Code]...
C/C++ :: Include (Text) Files From Directory (1 By 1) Automatically And Print It
Jun 10, 2014#include<iostream>
#include<conio.h>
#include<fstream>
#include<windows.h>
using namespace std;
int main(){
string ptr,a;
string b="E:project";
[Code] ....
C :: Stop Shell From Automatically Converting Wildcards In Arguments To Directory Listings
Oct 2, 2014Ok I'm on a Windows machine and I'm writing a simple tool to dump and touch ttf files. It's almost done except that the command line parser is giving nightmares. how do I stop the shell from automatically converting wildcards in arguments to directory listings? (I first flatten all arguments to a single string before parsing)
View 7 Replies View RelatedC :: Calculator Using Mouse With A Bug While Dragging
Mar 6, 2015I have an assignment to do a calculator in C, wich will work by clicking the numbers with the mouse, however i have a bug that when i hold the mouse and dragg it, it assumes that I'm clicking multiple times, also, when I click in an empty space the program creates a blank space on the calculator screen.
Code:
#include <stdio.h>
#include <conio.h>
#include <math.h>
#include "..MouseHandler.h" // ajustar o caminho ao seu projecto
#include "..calcSkinLib.h" // ajustar o caminho ao seu projecto
#define PI = 3.1415;
[code]....
C :: Detect Mouse Movement
Aug 17, 2013i was trying to write a program in c language which can detect mouse movement, but the program which i have written can only detect the mouse click or scroll the program which i have written given below..
Code:
#include<stdio.h>
#include<string.h>
#include <ncurses.h>
int main() {
}
[code]....
run the programme with linked-lncurses. improve my program which also detect when the mouse moves.
C++ :: How To Use Mouse In Win32 Console
Jan 28, 2014I want to show and control mouse in Win32 Console. What should I do? And I want to learn MFC programing.
View 3 Replies View RelatedC++ :: How To Use Mouse In Drawing Shapes
May 3, 2013i have to make an application called " paint " in c++ . It should facilitate user to draw different shapes using a mouse. Now the biggest hurdle i am facing is the usage of mouse .. what is the header file for usage of mouse ? i am using visual studio 2010 . the syntax is creating problems ..
View 1 Replies View RelatedC# :: Mouse View In Picturbox?
Jan 22, 2014i would like to add a image box to my application which shows a view/picture where ever my mouse is pointing. something like windows magnifier but it must not zoom in anything it must just display in picture box what your pointer is on.
So basically you have a picture box 504, 86 okay in a form when you move your cursor of mouse around desktop what ever you look at it will be visible inside picture box.
This is what i have so far.
private void MainForm_Load(object sender, EventArgs e) {
objPct.Visible = false;
this.Controls.Add(objPct);
}
PictureBox objPct = new PictureBox();
[code].....
C++ :: Detecting Mouse Clicks With Direct2d
Jan 21, 2014I have a direct2d application and I want to be able to detect mouse clicks. One example is, (in my borderless window) I would like to have an X at the top right of the screen, that when clicked would close the window. How can I do something like this?
View 3 Replies View RelatedC++ :: SDL Handle Mouse Motions And Clicks?
Sep 14, 2013I have a game that I'm trying to create but I don't really know how to handle mouse motions yet. I have read the LazyFoo.net lesson 9. And I have too searched around on Google but haven't find any good article for what I want to do
But what I want is to check if the mouse is OVER the START button of the game and if the user has pressed the LEFT mouse button the game should START.
This works when I am hovering over the area there I want the mouse to do something:
Code:
else if (event.type == SDL_MOUSEMOTION)
{
if (event.motion.x == 0)
{
quit = true;
}
}
I do not know how to check this. The START and QUIT button is in the middle of the screen and I don't know how to position the mouse there either.