ANDY PERSONS built a portable progress bar using the new FileMaker 13 Base64Decode() function and some creative thinking:
This technique makes use of FileMaker Pro 13’s new Base64Decode() function to convert text into an image. The ProgressBar() custom function includes a pre-built 1 x 100-pixel bmp base image and inserts the foreground or background pixels based on the “progress” parameter.
The resulting container is then set to enlarge or reduce without maintaining proportions and the padding is set to zero to ensure the graphic fills it completely.
Download the example file and check it out. Very nice.