L_AnnGetLocked

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnGetLocked(hObject, pfLocked)

HANNOBJECT hObject;	/* handle to the annotation object*/
L_BOOL *pfLocked;	/* address of a variable to be updated */

Gets a value that indicates whether an object is locked.

This function is available in the Document and Medical Imaging toolkits.

Parameter	Description
hObject	Handle to the annotation object.
pfLocked	Address of a variable to be updated with a value indicating whether the object is locked or unlocked. Possible values are:
	Value	Meaning
	TRUE	The object is locked.
	FALSE	The object is not locked.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

Only unlocked objects can be locked. If an object is already locked, it will stay locked with its original key. You must pass the same key to L_AnnUnlock to unlock the object(s).

An object must be unlocked in order to change its key in the automated mode.

Redact objects must be unlocked to be restored (unrealized). Refer to L_AnnUnrealize.

Required DLLs and Libraries

LTANN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Windows 2000 / XP/Vista.

See Also

Functions:	L_AnnUnlock, L_AnnShowLockedIcon, L_AnnUnrealize, L_AnnRealize, L_AnnLock
Topics	Annotation Functions (Document/Medical): Security
	Annotation Objects - Automated Features
	Implementing an Automated Annotation Program
	Implementing a Non-automated Annotation Program
	Obtaining Annotation Object Information

Example

For complete sample code, refer to the Annotate example.

 L_INT AnnGetLockedExample(HANNOBJECT  hAnnObject)
{
   L_BOOL   bLocked;
   L_INT    nRet;
   L_TCHAR*  MyKey=TEXT("");

   nRet = L_AnnShowLockedIcon(hAnnObject, TRUE, 0);
   if(nRet != SUCCESS)
      return nRet;
   nRet = L_AnnGetLocked(hAnnObject, &bLocked);
   if(nRet != SUCCESS)
      return nRet;
   if (bLocked)
   {
      MessageBox(NULL, TEXT("Object is locked. It will be unlocked.\n"), TEXT("Message"), MB_OK);
      nRet = L_AnnUnlock(hAnnObject, MyKey, 0);
      if (nRet == ERROR_ANN_LOCKED)
         MessageBox(NULL, TEXT("Object was not unlocked!"), TEXT("Warning"), MB_OK);
   }
   else
   {
      MessageBox(NULL, TEXT("Object was not locked. It will be locked now."), TEXT("Message"), MB_OK);
      nRet = L_AnnLock(hAnnObject, MyKey, 0);
      if (nRet != SUCCESS)
         MessageBox(NULL, TEXT("Object could not be locked.\n"), TEXT("Warning"), MB_OK);
   }
   return SUCCESS;
}