LAnnAutomation::GetSecondaryMetafile

#include "ltwrappr.h"

virtual L_INT LAnnAutomation::GetSecondaryMetafile(phMetafile)

HMETAFILE * phMetafile;

/* pointer to a variable to be updated with the handle to a metafile */

Retrieves the metafile handle associated with an automation object when it is in the decryptor state.

Parameter	Description
phMetafile	Pointer to a variable to be updated with the handle to a metafile.

Returns

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

Comments

The automation object has two states:

Encryptor

Decryptor

Each state is displayed with its own metafile. Use this function to retrieve the current metafile for an automation object in a decryptor state. The default image is shown in the figure below:

$image\decryptresized20.gif$

If this function is successful, the address pointed to by phMetafile will be updated with the metafile handle.

Use the LAnnAutomation::GetMetafile function to retrieve the current metafile for an automation object in an encryptor state.

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

Win32, x64.

See Also

Functions:	Class Members
Topics:	Annotation Functions: Object Properties
	Implementing Annotations
	Automated User Interface for Annotations
	Annotation Functions: Creating and Deleting Annotations
	Types of Annotations
	Annotation Functions: Implementing Custom Annotations

Example

// This example swaps the metafiles for the 'encrypt' and 'decrypt' state of an encryptor.

L_INT LAnnAutomation_GetSecondaryMetafileExample(LAnnAutomation *pLAutomation)
{
   L_INT nRet;
   HMETAFILE hMetafile1=0;
   HMETAFILE hMetafile2=0;
   L_BOOL bEncryptorOriginal;
   ANNENCRYPTOPTIONS EncryptOptions;
   L_UINT uObjectType;
   uObjectType = pLAutomation->GetType();
   if (uObjectType != ANNOBJECT_ENCRYPT)
   {
      MessageBox(NULL, TEXT("This object is not an encryptor."), TEXT("Error"), MB_OK);
      return 0;
   }
   HANNOBJECT obj = pLAutomation->GetHandle();
   LAnnEncrypt MyAnnEncrypt(obj);
   nRet = MyAnnEncrypt.GetMetafile(&hMetafile1);
   if(nRet != SUCCESS)
      return nRet;
   nRet = MyAnnEncrypt.GetSecondaryMetafile(&hMetafile2);
   if(nRet != SUCCESS)
      return nRet;
   memset(&EncryptOptions, 0, sizeof(ANNENCRYPTOPTIONS));
   EncryptOptions.uStructSize = sizeof(ANNENCRYPTOPTIONS);
   EncryptOptions.uFlags = ANNENCRYPT_ALL;
   nRet = MyAnnEncrypt.GetEncryptOptions(&EncryptOptions);
   if(nRet != SUCCESS)
      return nRet;
   bEncryptorOriginal = EncryptOptions.bEncryptor;
   // Set state to encryptor, and set encryptor metafile
   EncryptOptions.uFlags      = ANNENCRYPT_TYPE;
   EncryptOptions.bEncryptor  = TRUE;
   nRet = MyAnnEncrypt.SetEncryptOptions(&EncryptOptions, 0);
   if(nRet != SUCCESS)
      return nRet;
   nRet = MyAnnEncrypt.SetMetafile(hMetafile2, ANNMETAFILE_USER, 0);
   if(nRet != SUCCESS)
      return nRet;
   // Set state to decryptor, and set decryptor metafile
   EncryptOptions.bEncryptor = FALSE;
   nRet = MyAnnEncrypt.SetEncryptOptions(&EncryptOptions, 0);
   if(nRet != SUCCESS)
      return nRet;
   nRet = MyAnnEncrypt.SetMetafile(hMetafile1, ANNMETAFILE_USER, 0);
   if(nRet != SUCCESS)
      return nRet;
   // Set encryptor to original state
   EncryptOptions.bEncryptor = bEncryptorOriginal;
   nRet = MyAnnEncrypt.SetEncryptOptions(&EncryptOptions, 0);
   if(nRet != SUCCESS)
      return nRet;
   return SUCCESS;
}