Change Font Size in Win32 Rich Edit Control

	char* strFont = "Open Sans";
	int nFontSize = 70;
 
	CHARFORMAT cfFormat;
	memset(&cfFormat, 0, sizeof(cfFormat));
	cfFormat.cbSize = sizeof(cfFormat);
	cfFormat.dwMask = CFM_CHARSET | CFM_FACE | CFM_SIZE;
	cfFormat.bCharSet = ANSI_CHARSET;
	cfFormat.bPitchAndFamily = FIXED_PITCH | FF_DONTCARE;
	cfFormat.yHeight = (nFontSize * 1440) / 72;
	strcpy(cfFormat.szFaceName, strFont);
 
	CHARRANGE cr;
	cr.cpMin = INT_MAX;
	cr.cpMax = INT_MAX;
	SendDlgItemMessage(m_hWnd, IDE_EDITBOX, EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cfFormat);
	SendDlgItemMessage(m_hWnd, IDE_EDITBOX, EM_EXSETSEL, 0, (LPARAM)&cr);