Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
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GetFontData
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──Microsoft Foundation Classes──────────────────────────────────────────────
 
  Windows 3.1 only
 
  DWORD GetFontData( DWORD dwTable, DWORD dwOffset, LPVOID lpData,
                     DWORD cbData ) const;
 
  Parameter   Description
 
  <dwTable>   Specifies the name of the metric table to be returned. This
              parameter can be one of the metric tables documented in the
              TrueType Font Files specification, published by Microsoft
              Corporation. If this parameter is 0, the information is
              retrieved starting at the beginning of the font file.
 
  <dwOffset>  Specifies the offset from the beginning of the table at
              which to begin retrieving information. If this parameter is
              0, the information is retrieved starting at the beginning of
              the table specified by the <dwTable> parameter. If this
              value is greater than or equal to the size of the table,
              GetFontData returns 0.
 
  <lpData>    Points to a buffer that will receive the font information.
              If this value is NULL, the function returns the size of the
              buffer required for the font data specified in the <dwTable>
              parameter.
 
  <cbData>    Specifies the length, in bytes, of the information to be
              retrieved. If this parameter is 0, GetFontData returns the
              size of the data specified in the <dwTable> parameter.
 
  Remarks
 
  Retrieves font-metric information from a scalable font file. The
  information to retrieve is identified by specifying an offset into the
  font file and the length of the information to return.
 
  An application can sometimes use the GetFontData member function to save
  a TrueType font with a document. To do this, the application determines
  whether the font can be embedded and then retrieves the entire font
  file, specifying 0 for the <dwTable>, <dwOffset>, and <cbData>
  parameters.
 
  Applications can determine whether a font can be embedded by checking
  the otmfsType member of the OUTLINETEXTMETRIC structure. If bit 1 of
  otmfsType is set, embedding is not permitted for the font. If bit 1 is
  clear, the font can be embedded. If bit 2 is set, the embedding is
  read-only.
 
  If an application attempts to use this function to retrieve information
  for a non-TrueType font,the GetFontData member function returns -1.
 
  Return Value
 
  Specifies the number of bytes returned in the buffer pointed to by
  <lpData> if the function is successful; otherwise, -1.
 
  See Also
 
  CDC::GetOutlineTextMetrics, ::GetFontData
 
 
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