in Delphi TIPS ::
The TBitBtn Delphi control is a button control that can include a bitmap on its face.
The Glyph property specifies the bitmap that appears on the bitmap button.
By design, the Glyph property can only display BMP (Windows Bitmap) images.
Read the full article to learn how to Use an Icon for a Glyph on a TBitBtn Delphi control with the help of TImageList