/**

 * Fonts can have localised names and when the system locale is the same as

 * one of those localised names Windows will always return that localised name

 * instead of allowing to get the non-localised (English US) name of the font.

 * This will later on give problems as freetype uses the non-localised name of

 * the font and we need to compare based on that name.

 * Windows furthermore DOES NOT have an API to get the non-localised name nor

 * can we override the system locale. This means that we have to actually read

 * the font itself to gather the font name we want.

 * Based on: http://blogs.msdn.com/michkap/archive/2006/02/13/530814.aspx

 * @param logfont the font information to get the english name of.

 * @return the English name (if it could be found).

 */

static const char *GetEnglishFontName(const ENUMLOGFONTEX *logfont)

{

	static char font_name[MAX_PATH];

	const char *ret_font_name = NULL;

	HFONT font = CreateFontIndirect(&logfont->elfLogFont);

	if (font == NULL) goto err1;

	HDC dc = GetDC(NULL);

	HGDIOBJ oldfont = SelectObject(dc, font);

	DWORD dw = GetFontData(dc, 'eman', 0, NULL, 0);

	if (dw == GDI_ERROR) goto err2;

	byte *buf = MallocT<byte>(dw);

	dw = GetFontData(dc, 'eman', 0, buf, dw);

	if (dw == GDI_ERROR) goto err3;

	uint pos = 0;

	uint16 format = buf[pos++] << 8;

	format += buf[pos++];

	assert(format == 0);

	uint16 count = buf[pos++] << 8;

	count += buf[pos++];

	uint16 stringOffset = buf[pos++] << 8;

	stringOffset += buf[pos++];

	for (uint i = 0; i < count; i++) {

		uint16 platformId = buf[pos++] << 8;

		platformId += buf[pos++];

		uint16 encodingId = buf[pos++] << 8;

		encodingId += buf[pos++];

		uint16 languageId = buf[pos++] << 8;

		languageId += buf[pos++];

		uint16 nameId = buf[pos++] << 8;

		nameId += buf[pos++];

		if (nameId != 1) {

			pos += 4; // skip length and offset

			continue;

		}

		uint16 length = buf[pos++] << 8;

		length += buf[pos++];

		uint16 offset = buf[pos++] << 8;

		offset += buf[pos++];

		/* Don't buffer overflow */

		length = min(length, MAX_PATH - 1);

		for (uint j = 0; j < length; j++) font_name[j] = buf[stringOffset + offset + j];

		font_name[length] = '\0';

		if ((platformId == 1 && languageId == 0) ||      // Macintosh English

			(platformId == 3 && languageId == 0x0409)) { // Microsoft English (US)

			ret_font_name = font_name;

			break;

		}

	}

err3:

	free(buf);

err2:

	SelectObject(dc, oldfont);

	ReleaseDC(NULL, dc);

err1:

	DeleteObject(font);

	return ret_font_name == NULL ? WIDE_TO_MB((const TCHAR*)logfont->elfFullName) : ret_font_name;

}

	const char *font_name = GetEnglishFontName(logfont);