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This function is used to unmount a volume that was previously mounted by calling the CeMountDbVolEx (EDB) function.
BOOL CeUnmountDBVol( PCEGUIDpGuid);
Parameters
- pGuid
Specifies the CEGUID of the mounted volume to be unmounted. You can mount a volume by using the CeMountDbVolEx function.
Return Values
TRUE indicates success. FALSE indicates failure. To get extended error information, call GetLastError. The following table lists possible values returned by GetLastError:
| Return Value | Description |
|---|---|
| ERROR_INVALID_PARAMETER | pGuid is NULL. |
| ERROR_NOT_FOUND | Indicates that the volume identified by pGuid is not currently mounted. |
Remarks
This function is used to unmount a volume that was previously mounted by calling the CeMountDbVolEx function. A single database volume can be mounted more than once by different applications. Each time the volume is mounted, a reference count is incremented. A mounted database volume does not fully unmount and close until all applications that mounted the volume call the CeUnmountDbVol function. When a volume is finally unmounted, all cached data is flushed.
Note If there are open handles on databases within a volume, CeUnmountDbVol does not unmount the volume, but still returns TRUE.
Requirements
OS Versions: Windows CE 5.0 and later.
Header: Windbase.h.
Link Library: Coredll.lib.
See Also
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