Additional Topics > Medical Imaging in IDL > IDL DICOM Reference > IDLffDicomEx::Commit

# IDLffDicomEx::Commit

The IDLffDicomEx::Commit procedure method writes changes to the underlying DICOM file. The in-memory copy of the DICOM file is freed when Commit is called. After a call to Commit any outstanding sequence identifiers for this object will be invalid. You must use IDLffDicomEx::GetPrivateValue (for private sequences) or IDLffDicomEx::GetValue (for public sequences) to re-access sequence identifiers prior to making additional modifications to sequence items.

## Syntax

Obj->[IDLffDicomEx::]Commit

## Return Value

## Arguments

None

## Keywords

None

## Version History

6.1 | Introduced