Why do i keep geting this error?

[cosconub]

Error	1	error C2664: 'ID3DXFont::DrawTextW' : cannot convert parameter 2 from 'char [1024]' to 'LPCWSTR'	c:\users\chris\desktop\uptodatebase\my hacks\cabase\directx.cpp	27	1	CaBase

&

	2	IntelliSense: argument of type "char *" is incompatible with parameter of type "LPCWSTR"	c:\users\chris\desktop\uptodatebase\my hacks\cabase\directx.cpp	27	26	CaBase

this is what is causing it

void cDirectx::DrawString(int x, int y, DWORD color, LPD3DXFONT g_pFont, const char *fmt, ...)
{
	RECT FontPos = { x, y, x + 120, y + 16 };
	char buf[1024] = {'\0'};
	va_list va_alist;

	va_start(va_alist, fmt);
	vsprintf_s(buf, fmt, va_alist);
	va_end(va_alist);

	g_pFont->DrawText(NULL, buf, -1, &FontPos, DT_NOCLIP, color);
}