当我从 Windows 请求"Miriam"字体时，我得到的是"Arial"字体。这怎么可能，因为字体文件"mriam.ttf"存在于我的系统中？

在下面的代码中，Miriam字体是在WM_CREATE中创建的，其姓氏是在静态OUTLINETEXTMETRIC struct中获取的，由s_potm指向。然后我在WM_PAINT中展示了这个结构的成员otmpFamilyName，我得到Arial打印在窗口工作区上的字符串，而不是Miriam。但是没有理由进行这种字体替换，因为字体文件mriam.ttf存在于Windows 7中。任何解释？

#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, UINT, LONG);
int APIENTRY WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pszCmdLine, int nCmdShow)
{
    WNDCLASSEX  wndclassx;
    wndclassx.cbSize        = sizeof(WNDCLASSEX);
    wndclassx.style         = CS_HREDRAW | CS_VREDRAW;
    wndclassx.lpfnWndProc   = WndProc;
    wndclassx.cbClsExtra    = 0;
    wndclassx.cbWndExtra    = 0;
    wndclassx.hInstance     = hInstance;
    wndclassx.hIcon         = 0;
    wndclassx.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wndclassx.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wndclassx.lpszMenuName  = 0;
    wndclassx.lpszClassName = L"WndProc";
    wndclassx.hIconSm       = 0;
    if( !RegisterClassEx(&wndclassx) ) return 0;
    HWND hWnd = CreateWindow(L"WndProc", 0, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
                             0, 0, hInstance, 0);
    ShowWindow(hWnd, SW_SHOWNORMAL);
    UpdateWindow(hWnd);
    MSG msg;
    while( GetMessage(&msg, NULL, 0, 0) )
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    //  Retorna msg.wParam
    return (int)msg.wParam;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, UINT wParam, LONG lParam)
{
    static OUTLINETEXTMETRIC* s_potm;
    switch ( message )
    {
        case WM_CREATE:
        {
            HDC hDC;
            if( !(hDC = CreateIC(L"Display", nullptr, nullptr, nullptr)) ) return -1;
            LOGFONT lf;
            memset(&lf, 0, sizeof(LOGFONT));
            lf.lfHeight = 20;
            lf.lfOutPrecision = OUT_TT_ONLY_PRECIS;
            wcscpy_s(lf.lfFaceName, LF_FACESIZE, L"Miriam");
            HFONT hFont;
            if( !(hFont = CreateFontIndirect(&lf)) )
            {
                DeleteDC(hDC);
                return -1;
            }
             hFont = (HFONT)SelectObject(hDC, hFont);
             int ix = GetOutlineTextMetrics(hDC, 0, nullptr);
             s_potm = (OUTLINETEXTMETRIC*)new char[ix];
             GetOutlineTextMetrics(hDC, ix, s_potm); 
             DeleteObject(SelectObject(hDC, hFont));
             DeleteDC(hDC);
        }
        break;
        case WM_PAINT:
        {
            PAINTSTRUCT ps;
            BeginPaint(hwnd, &ps);
            wchar_t* p = (wchar_t*)((BYTE*)s_potm + (int)s_potm->otmpFamilyName);
            TextOut(ps.hdc, 10, 20, p, wcslen(p)); 
            EndPaint(hwnd, &ps);
        }
        break;
        case WM_DESTROY:
        PostQuitMessage(0);
        break;
        default:
        return DefWindowProc(hwnd, message, wParam, lParam);
    }
    return 0;
}

编辑 ：字体MT Extra也会发生同样的事情