IFileCallbackClose::OnCloseFile method (wudfddi.h)
[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]
The OnCloseFile method is called when the last reference count on a file object goes down to zero and before the file object is released.
Syntax
void OnCloseFile(
[in] IWDFFile *pWdfFileObject
);
Parameters
[in] pWdfFileObject
A pointer to the IWDFFile interface for the file object that is associated with the device.
Return value
None
Remarks
A driver registers the IFileCallbackClose interface when the driver calls the IWDFDriver::CreateDevice method to create a device object.
For information about when the framework calls OnCloseFile, see Driver-Created Versus Application-Created File Objects.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | wudfddi.h (include Wudfddi.h) |