Color Me , C pure code with GUI

Code:
#include <windows.h>

#include <stdio.h>

#include <string.h>

#include<time.h>

#include<stdlib.h>

#define ID_EDIT 1

#define ID_BUTTON 2

#define ID_TEXT 3

static int len;

char str[900];

int i;

char temp[10000000];

char *Arry[38][20];

int r;

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);





int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,

            LPSTR lpCmdLine, int nCmdShow )

{

    strcpy(Arry[0], "Dodgerblue");

    strcpy(Arry[1], "Antiquewhite");

    strcpy(Arry[2], "Aqua");

    strcpy(Arry[3], "Aquamarine");

    strcpy(Arry[4], "Azure");

    strcpy(Arry[5], "Beige");

    strcpy(Arry[6], "Bisque");

    strcpy(Arry[7], "Black");

    strcpy(Arry[8], "Blanchedalmond");

    strcpy(Arry[9], "Blue");

    strcpy(Arry[10], "Blueviolet");

    strcpy(Arry[11], "Brown");

    strcpy(Arry[12], "Burlywood");

    strcpy(Arry[13], "Chartreuse");

    strcpy(Arry[14], "Chocolate");

    strcpy(Arry[15], "Coral");

    strcpy(Arry[16], "Cornflowerblue");

    strcpy(Arry[17], "Cornsilk");

    strcpy(Arry[18], "Crimson");

    strcpy(Arry[19], "Darkcyan");

    strcpy(Arry[20], "Darkgoldenrod");

    strcpy(Arry[21], "Darkgray");

    strcpy(Arry[22], "Darkgreen");

    strcpy(Arry[23], "Darkkhaki");

    strcpy(Arry[24], "Darkmagenta");

    strcpy(Arry[25], "Darkolivegreen");

    strcpy(Arry[26], "Darkorange");

    strcpy(Arry[27], "Darkorchid");

    strcpy(Arry[28], "Darkred");

    strcpy(Arry[29], "Darksalmon");

    strcpy(Arry[30], "Darkseagreen");

    strcpy(Arry[31], "Darkslateblue");

    strcpy(Arry[32], "Darkslategray");

    strcpy(Arry[33], "Darkturquoise");

    strcpy(Arry[34], "Darkviolet");

    strcpy(Arry[35], "Deeppink");

    strcpy(Arry[36], "Deepskyblue");

    strcpy(Arry[37], "Dimgray");

  MSG  msg ;

  WNDCLASS wc = {0};

  wc.lpszClassName = TEXT( "Static Control" );

  wc.hInstance     = hInstance ;

  wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);

  wc.lpfnWndProc   = WndProc ;

  wc.hCursor       = LoadCursor(0,IDC_ARROW);





  RegisterClass(&wc);

  CreateWindow( wc.lpszClassName, TEXT("Change Text"),

                WS_OVERLAPPEDWINDOW | WS_VISIBLE,

                100, 100, 500, 500, 0, 0, hInstance, 0);



  while( GetMessage(&msg, NULL, 0, 0)) {

    TranslateMessage(&msg);

    DispatchMessage(&msg);

  }

  return (int) msg.wParam;

}



LRESULT CALLBACK WndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )

{

  static HWND hwndEdit;

  static HWND hwndEdit2;

  static HWND hwndButton;

  switch(msg)

  {

    case WM_CREATE:

    {



        hwndEdit = CreateWindow(TEXT("Edit"), NULL, WS_CHILD | WS_VISIBLE |ES_MULTILINE|ES_AUTOHSCROLL|WS_HSCROLL|ES_AUTOHSCROLL|WS_BORDER,

                10, 30, 465, 100, hwnd, (HMENU) ID_EDIT,

                NULL, NULL);



        hwndButton = CreateWindow( TEXT("button"), TEXT("Color Me !"),

            WS_VISIBLE | WS_CHILD,

            10,140,465,25,

            hwnd, (HMENU) ID_BUTTON, NULL, NULL);



        hwndEdit2 = CreateWindow(TEXT("Edit"), NULL, WS_CHILD | WS_VISIBLE |ES_MULTILINE|ES_AUTOHSCROLL|ES_AUTOHSCROLL|WS_HSCROLL|WS_BORDER,

                10, 178,465, 270, hwnd, (HMENU) ID_TEXT,

                NULL, NULL);



        break;

    }

    case WM_COMMAND:

        if(HIWORD(wParam) == BN_CLICKED){

            len = GetWindowTextLength(hwndEdit) + 1;

            GetWindowText(hwndEdit, str, len);

            srand(time(NULL));

            for(i=0; i<len-1; i++)

            {

                r= rand() % 37;

                strcat(temp,"[color=");

                strcat(temp, Arry[r]);

                strcat(temp, "]");

                strncat(temp, &str[i],1);

                strcat(temp, "[/color]");



            }

                SetWindowText(hwndEdit2, temp);

                strcpy(temp, "\0");



        }

                break;

    case WM_DESTROY:

    {

        PostQuitMessage(0);

        return 0;

    }

  }

  return DefWindowProc(hwnd, msg, wParam, lParam);

}