LRESULT
VC_RemoveDriver(
PVC_PROFILE_INFO pProfile
);
The VC_RemoveDriver function unloads a kernel-mode video capture driver and marks the kernel-mode driver service for deletion.
Parameters
pProfile
Address of the VC_PROFILE_INFO structure returned by VC_OpenProfileAccess.
Return Value
Returns one the following error values.
| Value | Definition |
| DRVCNF_OK | Indicates the driver service has been marked for deletion. |
| DRVCNF_CANCEL | Indicates an error occurred. |
Comments
The VC_RemoveDriver function performs the following operations, in order:
1.Unloads the kernel-mode driver, if it is loaded.
2.Sets the kernel-mode driver service’s start type to SERVICE_DEMAND_START, so it will not automatically reload when the system is restarted. (For details, see ChangeServiceConfig in the Win32 SDK.)
3.Calls DeleteService, described in the Win32 SDK, to mark the kernel-mode driver service for deletion.
A user-mode driver should call VC_RemoveDriver when its DriverProc function receives a DRV_REMOVE message. Before calling VC_RemoveDriver, the driver should call VC_ConfigAccess to determine if the client has Administrators privilege.
The profile information handle specified by pProfile remains open after this function removes the registry entry. Use VC_CloseProfileAccess to close the profile information handle after calling VC_RemoveDriver.