[RESOLVED] error on a code

[Cambalinho]

#include <process.h>
#include <string>
#include <memory.h>
#include <windows.h>

using namespace std;

struct Blink
{
    string Text;
    int x;
    int y;
    int TextColor;
    int BackColor;
};

unsigned __stdcall BlinkLoop(void *params)
{
    Blink *p = static_cast<Blink *>(params);

    char *EmptyText;
    EmptyText=new char[ p->Text.length() ] ;
    int i;
    for( i=0;i<=(int)p->Text.length();i++)
    {
        EmptyText[i] = ' ';
    }
    EmptyText[i] ='\0';

    HDC hDC=GetDC(GetConsoleWindow());
    SetTextColor(hDC,RGB(0,255,0));
    SetBkMode(hDC,TRANSPARENT);

    while (true)
    {
        TextOut(hDC,p->x,p->y,p->Text.c_str(),(int)p->Text.length()+1);
        Sleep(1000);
        TextOut(hDC,p->x,p->y,EmptyText,(int)p->Text.length()+1);
        Sleep(500);
    }
    return 0;
}
void TextBlink(string Text, int x, int y, int TextColor, int BackColor)
{
    Blink *b;
    b->Text=Text;
    b->BackColor=BackColor;
    b->TextColor=TextColor;
    b->x=x;
    b->y =y;

    _beginthreadex(NULL, 0, BlinkLoop  ,&b, 0, NULL);
}

i have 1(at least) error on thses code, but the compiler don't found it
only the windows "the program stops to working" and then close it.
can anyone advice me?