EM_SETPARAFORMAT message

Sets the paragraph formatting for the current selection in a rich edit control.

wParam

This parameter is not used; it must be zero.

lParam

Pointer to a PARAFORMAT structure specifying the new paragraph formatting attributes. Only the attributes specified by the dwMask member are changed.

Microsoft Rich Edit 2.0 and later: This parameter can be a pointer to a PARAFORMAT2 structure, which is an extension of the PARAFORMAT structure. Before sending the EM_SETPARAFORMAT message, set the structure's cbSize member to indicate the version of the structure.

If the operation succeeds, the return value is a nonzero value.

If the operation fails, the return value is zero.

Reference

PARAFORMAT

PARAFORMAT2