Insert image size proportional

[Philippe_Regnier]

I use this: 

ExcelFile.AddImage(FileName,

                    TImageProperties_Create(

                      TClientAnchor.Create(TFlxAnchorType.DontMoveAndDontResize, NumLigne, 0, NumCol, 0, NumLigne+1, 0, NumCol+1, 0),

                        FileName));

This inserts the image into the cell by stretching the image.

I would like a solution that does not stretch the image.