Declaration

function ReadExifGPSFieldsFromFile(const sFilename : string;
                                   out GPSLatitude: Double;
                                   out GPSLongitude: Double
                                   ) : boolean; overload;

function ReadExifGPSFieldsFromFile(const sFilename : string;
                                   out sGPSLatitude: string;
                                   out sGPSLongitude: string
                                   ) : boolean; overload;

Description

Retrieves GPS location data from a file. The following properties are returned:
◼EXIF_GPSLatitude
◼EXIF_GPSLongitude

Returns false if sFilename does not contain any GPS data.

Examples

// Show location on map for selected file
if ReadExifGPSFieldsFromFile( MyFileListBox.Filename, GPSLatitude, GPSLongitude ) then
  Map.NavigateTo( GPSLatitude, GPSLongitude );

// Show GPS location for selected file
if ReadExifGPSFieldsFromFile( MyFileListBox.Filename, sGPSLatitude, sGPSLongitude ) then
begin
  lblGPSLatitude .Caption := sGPSLatitude;
  lblGPSLongitude.Caption := sGPSLongitude;
end
else
begin
  lblGPSLatitude .Caption := '';
  lblGPSLongitude.Caption := '';
end;

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