MFC Dialog Font Substitution Under DBCS System (152099)


The information in this article applies to:

  • The Microsoft Foundation Classes (MFC), when used with:
    • Microsoft Visual C++, 32-bit Editions 4.0
    • Microsoft Visual C++, 32-bit Editions 4.1
This article was previously published under Q152099

SUMMARY

When an MFC application is run under a DBCS (Double-byte Character Set, including Japanese, Chinese and Korean) in Windows NT or Windows 95, the default font specified for the dialog boxes within that application will be changed to the system font if they were originally set as "MS Sans Serif" or "Helv" in the RC file.

MORE INFORMATION

CDialog::DoModal eventually calls the following code (excerpt from MFC source code dlgcore.cpp): 
   // On DBCS systems, also change "MS Sans Serif" or "Helv" to system
           font.
   if ((!bSetSysFont) && GetSystemMetrics(SM_DBCSENABLED))
   {
      bSetSysFont = ((strFace == _T("MS Sans Serif")) ||
         (strFace == _T("Helv")));
      if (bSetSysFont && (wSize == 8))
         wSize = 0;
   }
   if (bSetSysFont)
   {
      CDialogTemplate dlgTemp(lpDialogTemplate);
      dlgTemp.SetSystemFont(wSize);
      hTemplate = dlgTemp.Detach();
   }
"MS Sans Serif" and "Helv" cannot correctly display double-byte strings. Therefore, under a DBCS-enabled system, dialog boxes need to use the system font instead.

This font substitution does not occur on non-DBCS versions of Windows NT or Windows 95.
Modification Type:MajorLast Reviewed:10/24/2003
Keywords:kbIntl kbIntlDev KB152099
©2003 Microsoft Corporation. All rights reserved.