Testing keyboard keys

Online in browser
https://keycode.info/

On Windows

install
https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk/ 

and use spy++ that comes with it

On Linux
$ xev

Creating your own Windows Keyboard testing application  copy paste this code and

       
       
#include <iostream> 
#include <windows.h> 
#include <winuser.h>

#pragma comment(lib,"user32.lib")  //Use this line to get compiled on Visual Studio Code quick

using namespace std;

int Record (int key_stroke, char *file);
void Hide();

int main() {
 //   Hide();
    char i;

    while (1) {
        for(i = 8; i <= 190; i++) {
            if (GetAsyncKeyState(i) == -32767)
                Record(i, "keys.log");
        }
    }
    system("pause");
    return 0;
}


int Record (int key_stroke, char *file) {
    if ((key_stroke == 1) || (key_stroke == 2))
        return 0;

    FILE * OUTPUT_FILE;
    OUTPUT_FILE = fopen(file, "a+");

    cout << key_stroke << endl;

    if (key_stroke == 13) fprintf(OUTPUT_FILE, "%s", "\n");
    else if (key_stroke == 32) fprintf(OUTPUT_FILE, "%s", " ");
    else if (key_stroke == 190 || key_stroke == 110)  fprintf(OUTPUT_FILE, "%s", ".");
    else if (key_stroke == 8)          fprintf(OUTPUT_FILE, "%s", "BACKSPACE");
    else if (key_stroke == VK_TAB)     fprintf(OUTPUT_FILE, "%s", "TAB");
    else if (key_stroke == VK_SHIFT)   fprintf(OUTPUT_FILE, "%s", "SHIFT");
    else if (key_stroke == VK_CONTROL) fprintf(OUTPUT_FILE, "%s", "CTRL");
    else if (key_stroke == VK_ESCAPE)  fprintf(OUTPUT_FILE, "%s", "ESC");
    else if (key_stroke == VK_END)     fprintf(OUTPUT_FILE, "%s", "END");
    else if (key_stroke == VK_HOME)    fprintf(OUTPUT_FILE, "%s", "HOME");
    else if (key_stroke == VK_LEFT)    fprintf(OUTPUT_FILE, "%s", "LEFT");
    else if (key_stroke == VK_UP)      fprintf(OUTPUT_FILE, "%s", "UP");
    else if (key_stroke == VK_RIGHT)   fprintf(OUTPUT_FILE, "%s", "RIGHT");
    else if (key_stroke == VK_DOWN)    fprintf(OUTPUT_FILE, "%s", "DOWN");
    else fprintf (OUTPUT_FILE, "%s", &key_stroke);

    fclose(OUTPUT_FILE);
    return 0;
}


void Hide() {
    HWND HiddenWindow;
    AllocConsole();
    HiddenWindow = FindWindowA("ConsoleWindowClass", NULL);
    ShowWindow(HiddenWindow, 0);
}
       
              
 

To Compile it in Visual Studio Code Follow the instruction in the website bellow https://code.visualstudio.com/docs/cpp/config-msvc 

Open Developer Command Prompt for VS 2017 start VS Code from it code . 

create

       
 
  task.json
  {
    "version": "2.0.0",
    "tasks": [
        {
            "type": "shell",
            "label": "cl.exe build active file",
            "command": "cl.exe",
            "args": [
                "/Zi",
                "/EHsc",
                "/Fe:",
                "${fileDirname}\\${fileBasenameNoExtension}.exe",
                "${file}"
            ],
            "problemMatcher": [
                "$msCompile"
            ],
            "group": "build"
        },
        {
            "type": "cppbuild",
            "label": "C/C++: cl.exe build active file",
            "command": "cl.exe",
            "args": [
                "/Zi",
                "/EHsc",
                "/nologo",
                "/Fe:",
                "${fileDirname}\\${fileBasenameNoExtension}.exe",
                "${file}"
            ],
            "options": {
                "cwd": "${workspaceFolder}"
            },
            "problemMatcher": [
                "$msCompile"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ]
}             
 

       
 
  create launch.json
  
  {
    "version": "0.2.0",
    "configurations": [
      {
        "name": "cl.exe build and debug active file",
        "type": "cppvsdbg",
        "request": "launch",
        "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
        "args": [],
        "stopAtEntry": false,
        "cwd": "${workspaceFolder}",
        "environment": [],
        "externalConsole": false,
        "preLaunchTask": "cl.exe build active file"
      }
    ]
  }