| Checks whether a defined data format is supported by a drop operation. | 
| Syntax: | DropFormat(data format, user-defined format) | 
| Parameters: | data format – A numeric value for the data format stored in the operating system. The following data formats are: 0 – User-defined format 1 – Text 2 – OEM Text 3 – Rich Text 4 – HTML 5 – Hyperlink 6 – File name and path 7 – Unicode user-defined format – This parameter is required when the data format parameter is set to 0 but is not relevant for other data formats. | 
| Returns: | True value if the data format is supported. | 
| Examples: | DropFormat(0, 'My format') returns True if the user-defined format is supported by the drag operation data. | 
| Note: | To handle drop data of user-defined formats, you must first set the names of the expected user-defined formats in the Drop Data supported user formats environment setting. | 
| Exceptions: | This function is not supported in Web Client tasks. | 
| Platform specific: | This function is not supported for mobile devices. | 
| See also: | The Online and Rich Client Samples projects (program HG40 and RHG40) |