CA_ServerUnlockActiveObject
HRESULT CA_ServerUnlockActiveObject (CAServerObjHandle serverObjectHandle);
Purpose
Unlocks the ActiveX object whose handle is passed in the first parameter.
Note that this function must be called only for those objects that have been previously locked by a call to CA_ServerLockActiveObject.
Call CA_ServerUnlockActiveObject when you need to make an ActiveX object, which was previously locked when it was made visible, invisible and need to unlock the object.
Parameters
| Input | ||
| Name | Type | Description |
| serverObjectHandle | CAServerObjHandle | The handle to an ActiveX object in your ActiveX server. |
Return Value
| Name | Type | Description | ||
| status | HRESULT | A value indicating whether an error occurred. Function failure is indicated by a negative error code. Error codes are defined in CVIversion\include\cviauto.h and <Program Files>\National Instruments\Shared\MSDTRedistributables\SDKHeaderFiles\8.1\winerror.h. The LabWindows/CVI ActiveX Library explicitly returns error codes. Other error codes in winerror.h are generated by the COM runtime and passed on to you by the ActiveX Library. You can use CA_GetAutomationErrorString to get the description of an error code or CA_DisplayErrorInfo to display the description of the error code.
The error codes defined in <Program Files>\National Instruments\Shared\MSDTRedistributables\SDKHeaderFiles\8.1\winerror.h are too numerous to display here. These error codes can be returned to your ActiveX clients. |
Additional Information
Library: ActiveX Library
Include file: cviauto.h
LabWindows/CVI compatibility: LabWindows/CVI 6.0 and later