ImageEn, unit iemio

TImageEnMIO.SelectedAcquireSource

TImageEnMIO.SelectedAcquireSource


Declaration


property SelectedAcquireSource : TIEAcquireSource; (Read-only)


Description


Return the acquisition source that is currently active due to selection by the user with SelectAcquireSource or programatically using SetAcquireSource.
A TIEAcquireSource record is returned that provides meta information about the device (SelectedAcquireSource.Name, SelectedAcquireSource.DeviceType) and technical details (SelectedAcquireSource.Api, SelectedAcquireSource.Location).
If no device is selected then SelectedAcquireSource.Api will be ieaNone.


See Also


- SelectAcquireSource
- SetAcquireSource


Examples


// Display the selected source
if ImageEnMView1.MIO.SelectedAcquireSource.Api = ieaNone then
  ShowMessage('No device is selected')
else
  ShowMessage('The selected device is ' + ImageEnMView1.MIO.SelectedAcquireSource.Name);

// Read and restore the selected source
var
  sDevice : string;
  ADevice : TIEAcquireSource;
begin
  ..
  // Read the selected device
  sDevice := AcquireSourceToStr(ImageEnMView1.MIO.SelectedAcquireSource);
  ..
end;
    
var
  sDevice : string;
  ADevice : TIEAcquireSource;
begin
  ..
  // Restore the device selection
  ADevice := StrToAcquireSource(sDevice);
  ImageEnMView1.MIO.SetAcquireSource(ADevice.Api, ADevice.Location);
  ..
end;