| strBase64 | String | Yes | String containing the Base64 data. |
| nWidth | Number | No | Optional parameter which specifies the width of the histogram. |
| nHeight | Number | No | Optional parameter which specifies the height of the histogram. |
| nBackgroundColor | Number | No | Optional parameter which specifies the graph background color. |
| nGraphColor | Number | No | Optional parameter which specifies the graph bar color. |
| nBackgroundOpacity | Number | No | Optional parameter which specifies the opacity of the graph background. |
| nGraphOpacity | Number | No | Optional parameter which specifies the opacity of the graph bar. |
| nChannel | Channel (Enumeration) | No | Optional parameter which specifies the color channel. |