_getch problem with unbuffered values

[copthesaint]

I am trying to use _getch in C++ using window 7 visual studio 2010. The issue I am having is when I press any character after the up or down key, every other character acts the same as the last pressed up or down. Here is my code:

c:

#include <iostream> #include <string> #include <stdio.h> #include <conio.h> using namespace std; int mainMenu (void){         /*menu dependand varibles*/         bool terminate = 0;         const int menuEvents = 4;         const int menuEventChr [4] = {72,80,13,27}; // up, down, enter, esc         int inputVal = 0;         int menuOption = 0;         char menuChar [5] = {'>',' ',' ',' ',' '};              int ch = 0;                 /*Main loop menu*/         while ((terminate == 0) == true){                                 system ("cls");                 system ("color 02");                 /*Menu Message*/                 cout << "ROBCO INDUSTRIES UNIFIED OPERATING SYSTEM" << endl;                 cout << "COPYRIGHT 2075-2077 ROBCO INDUSTRIES" << endl;                 cout << "-Server 6-" << endl << endl;                 cout << "-Robco Unified System Terminal-" << endl;                 cout << "========================================" << endl;                 cout << "________________________________________" << endl << endl;                 cout << " " << menuChar [0] << " " << "User Login" << endl << endl;                 cout << " " << menuChar [1] << " " << "User Database" << endl << endl;                 cout << " " << menuChar [2] << " " << "Account Creation" << endl << endl;                 cout << " " << menuChar [3] << " " << "Registry List" << endl << endl;                 cout << " " << menuChar [4] << " " << "Terminate" << endl << endl;                                 /*Checks for key events*/                 //inputVal = 0;                 ch = _getch ();                 if (ch == 0 || ch == 224){                         ch = _getch ();                         inputVal = 0;                         for (int i = 0; i < menuEvents; i++){                                 if (ch == menuEventChr [i]){                                         inputVal = i + 1;                                 }                                       }                 }                                               /*Manages Key Events*/                 switch (inputVal){                         default:                                 cout << ch<< endl;                                 break;                         case 1:                                 menuOption = menuOption - 1;                                 cout << "up" << endl;                                 system ("pause");                                 break;                         case 2:                                 menuOption = menuOption + 1;                                 cout << "down" << endl;                                 system ("pause");                                 break;                         case 3:                                 cout << "enter" << endl;                                 system ("pause");                                 break;                         case 4:                                 terminate = 1;                                 cout << "terminated" << endl;                                 system ("pause");                                 break;                 }                        /*Update consol menu*/                 if (menuOption <0){                         menuOption = 4;                 } else if (menuOption > 4){                         menuOption = 0;                 }                 for (int i = 0; i < 5; i++){                         menuChar [i] = ' ';                 }                 menuChar [menuOption] = '>';         } // end of main loop         return 0; } int main (int argc, char args[]){         if (mainMenu () == 0) {         }         system ("pause");         return 0; }

Any help is appreciated. thanks.

[2goto1]

In your source code, under what condition are you setting a value for inputVal?

[copthesaint]

2goto1 wrote:

In your source code, under what condition are you setting a value for inputVal?

I solved that issue moving inputVal = 0 after the switch statement, thanks for making me focus on that.
It was just something simple and stupid lol.

c:

/*Checks for key events*/                 //inputVal = 0;                 ch = _getch ();                 if (ch == 0 || ch == 224){                         ch = _getch ();                         inputVal = 0;  //<- this line is moved                         for (int i = 0; i < menuEvents; i++){                                 if (ch == menuEventChr [i]){                                         inputVal = i + 1;                                 }                                        }                 }

My question now is "why wont my program terminate?" whenever I run my program the inputVal is only changed for the two arrow keys, It will not change to values 2 and 3.

EDIT: never mind, enter and esc don't seem to have pressed and release states.

[QuantumPhysics]

Are you asking why your program doesn't stop when you hit esc or are you asking why the runtime console won't close?

[copthesaint]

No I am not, I already solved this thread.

"EDIT: never mind, enter and esc don't seem to have pressed and release states."