Gdi+ DrawString gibt Symbole statt Text aus

CDrawPlus()
	{
		GdiplusStartup(&this->dwGdiStartup, &gdiStartup, NULL);
	}
//[...]
	void Init(HDC hdc, Color clr, char* fontname, int fontsize)
	{
		this->p_gdiGraph = new Graphics(hdc);
		this->p_pen = new Pen(clr, 1);
		this->p_font = new Font((WCHAR*)fontname, fontsize);
		this->p_brush = new SolidBrush(clr);
	}
//[...]
	void DrawString(int x, int y, Color clr, char* text, ...)
	{
		va_list va_alist;
		char buffer[1024] = { 0 };
		va_start(va_alist, text);
		vsprintf(buffer, text, va_alist);
		va_end(va_alist);
 
		this->p_brush->SetColor(clr);
		this->p_gdiGraph->DrawString((WCHAR*)buffer, -1, this->p_font, PointF(x,y), this->p_brush);
	}

0[/ code]
[code=cpp]
gDraw.Init(GetWindowDC(hWnd), Gdiplus::Color(255,255,255,255), "Arial", 12);
//[...]
gDraw.DrawString(iScreenPos[0], iScreenPos[1]-15, Gdiplus::Color(255,settings.ct_r, settings.ct_g, settings.ct_b), "HP: %i ", pPlayer[i].health);

void DrawString(int x, int y, Color clr, wchar_t* text, ...)
{
	va_list va_alist;
	wchar_t buffer[1024] = { 0 };
	va_start(va_alist, text);
	vswprintf(buffer, text, va_alist);
	va_end(va_alist);
 
	this->p_brush->SetColor(clr);
	this->p_gdiGraph->DrawString(buffer, -1, this->p_font, PointF(x,y), this->p_brush);
}