HDC hdc = CreateCompatibleDC( 0 );
HFONT hFont;
HFONT hFontOld;
//
// Describe the font we want.
//
LOGFONT lf;
ZeroMemory(&lf, sizeof(LOGFONT));
lf.lfHeight = 25; // in logical units
lf.lfWidth = 12; // in logical units
lf.lfEscapement = 0;
lf.lfOrientation = 0;
lf.lfWeight = 500; // boldness, range 0(light) - 1000(bold)
lf.lfItalic = false;
lf.lfUnderline = false;
lf.lfStrikeOut = false;
lf.lfCharSet = DEFAULT_CHARSET;
lf.lfOutPrecision = 0;
lf.lfClipPrecision = 0;
lf.lfQuality = 0;
lf.lfPitchAndFamily = 0;
strcpy(lf.lfFaceName, "Times New Roman"); // font style
//
// Create the font and select it with the device context.
//
hFont = CreateFontIndirect(&lf);
hFontOld = (HFONT)SelectObject(hdc, hFont);
//
// Create the text mesh based on the selected font in the HDC.
//
D3DXCreateText(Device, hdc, "问题1:说出5种音频文件格式",
0.004f, 0.3f, &Text, 0, 0);
//
// Restore the old font and free the acquired HDC.
//
SelectObject(hdc, hFontOld);
DeleteObject( hFont );
DeleteDC( hdc );