Retrieves the widths, in logical coordinates, of consecutive glyph indices in a specified range from the current font.
Specifies the first glyph index in the group of consecutive glyph indices from the current font. This parameter is only used if the pgi parameter is NULL.
Specifies the number of glyph indices.
A pointer to an array containing glyph indices. If the value is NULL, the giFirst parameter is used instead. The cgi parameter specifies the number of glyph indices in this array.
A pointer to a buffer that receives the widths.
This member function emulates the functionality of the function GetCharWidthI, as described in the Platform SDK.