Routines (alphabetical) > Object Classes > Graphics Object Classes > IDLgrImage::TileDataLoaded

# IDLgrImage::TileDataLoaded

The IDLgrImage::TileDataLoaded function method tests whether a specified image tile has data loaded.

## Syntax

Result = Obj->[IDLgrImage::]TileDataLoaded( TileInfo )

## Return Value

Returns 1 (one) if the tile has data already loaded, or 0 (zero) otherwise.

## Arguments

### TileInfo

A named structure describing the tile to be queried. Only one tile at a time can be passed to TileDataLoaded. The structure contains the following fields:

Field | Data Type | Description
X | Long | The horizontal position of the left side of the tile(s) measured from the left of the image in pixels.
Y | Long | The vertical position of the bottom of the tile(s) measured from the bottom of the image in pixels.
WIDTH | Long | The width of the tile(s) in pixels.
HEIGHT | Long | The height of the tile(s) in pixels.
LEVEL | Long | The data resolution, where 0 is the full resolution image. A value of n (n > 0) indicates that the resolution is half that of the n-1 level.
DEST | OBJREF | The object reference to the destination object that displays the tiled IDLgrImage.

## Keywords

None.

## Version History

6.4 | Introduced