How To Use Text Bullets in a Rich Edit Control

SUMMARY

The Rich Edit control contains a built-in text bullet feature that is used to add paragraph bullets to the text. To use this feature, you must send the Rich Edit control a EM_SETPARAFORMAT message. The EM_SETPARAFORMAT message takes a pointer to a PARAFORMAT structure (in the case of Richedit 1.0) or PARAFORMAT2 structure (an extension of the PARAFORMAT structure, in the case of Richedit 2.0 or later) as its lParam parameter.

In the PARAFORMAT structure, it is necessary to zero out the structure and fill in the following members:

   UINT  cbSize - Contains the size of the structure. Use
   sizeof(PARAFORMAT).

   DWORD dwMask - Contains the attributes to set. For bullets, use
   PFM_NUMBERING | PFM_OFFSET.

   WORD  wNumbering - Contains the value that specifies numbering options.
   For bullets, set this member equal to PFN_BULLET.

   LONG  dxOffset - Contains the value that specifies indentation of the
   second line and subsequent lines, relative to the starting indentation.
   For bullets, this value must be positive because the bullet is displayed
   in the area between the starting indentation and the offset. If this
   value is too small, the bullets are not displayed.
				

Richedit 1.0 uses only PARAFORMAT structure. Richedit 2.0 or later can use either the PARAFORMAT structure or the PARAFORMAT2 structure.