Parameters 

Description 

Row: integer 

Row of the cell with the comment (1 based). 

Col: integer 

Column of the cell with the comment (1 based). 

const Value: UTF16String 

String with the comment. 

const Properties: TImageProperties 

This parameter lets you specify the properties of the comment box that displays when you hover over the cell.
Only the Col1, dx1, Row1, dy1, Col2, dx2, Row2, dy2 members of Properties have meaning. The FileName member is not used here.

• Col1,Row1, Col2 and Row2 are the starting/ending cells for the box.

* dx1 and dx2 are the x offset from the starting/ending cells, and they are measured as a 1/1024 part of the cell.For example:

• a box starting on Col1=3 and dx1=0 will start at the beginning of column 3
• a box starting on Col1=3 and dx1=512 will start at the middle of column 3
• a box starting on Col1=3 and dx1=1023 will start at the last pixel of column 3

* dy1 and dy2 are the y offset from the starting/ending cells, and they are measured as a 1/255 part of the cell. (dy=127 means the middle of the cell)