Insert a 24bit bitmap image in a worksheet. The main record required is IMDATA but it must be proceeded by a OBJ record to define its position.
integer $row - The row we are going to insert the bitmap into
integer $col - The column we are going to insert the bitmap into
string $bitmap - The bitmap filename
integer $x - The horizontal position (offset) of the image inside the cell.
integer $y - The vertical position (offset) of the image inside the cell.
integer $scale_x - The horizontal scale
integer $scale_y - The vertical scale