L_AnnSaveMulti

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#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnSaveMulti(pFile, phObjects, nCount, uFormat, fSelected, pSaveOptions)

L_TCHAR * pFile;	/* name of the file to save */
HANNOBJECT *phObjects;	/* pointer to an array of annotation container handles */
L_INT nCount;	/* the number of objects in the phObjects array */
L_UINT uFormat;	/* file format for saving annotation data */
L_BOOL fSelected;	/* flag that indicates which objects to save */
pSAVEFILEOPTION pSaveOptions;	/* pointer to optional extended save options */

Saves an array of annotation containers to the specified file.

Parameter	Description
pFile	Character string that contains the name of the file to save.
phObjects	Pointer to an array of handles to annotation container objects. Each annotation container object can include multiple annotation objects.
nCount	The number of objects in the phObjects array.
uFormat	Format for saving annotation data. Possible values are:
	Value	Meaning
	ANNFMT_XML	[0x0005] Save as an XML text format. This is the only format supported for this call. All other values return ERROR_FEATURE_NOT_SUPPORTED.
fSelected	Flag that indicates which objects to saved. Possible values are:
	Value	Meaning
	TRUE	Save all objects that have the selected property set to TRUE. For getting and setting the selected property, use the L_AnnGetSelected and L_AnnSetSelected functions.
	FALSE	Save only the specified object.
pSaveOptions	Pointer to a SAVEFILEOPTION structure that contains optional extended save options. Pass NULL because this parameter is currently ignored.

Returns

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

Comments

This function saves an entire array of annotation container objects with each page of the multi-page annotation file corresponding to one of the annotation containers. If pFile already exists, it will be overwritten. If phObjects contains many annotation containers, then this function will create the multi-page annotation file much faster than repeated calls to L_AnnSave. Note that this function only supports the ANNFMT_XML format. Passing any other format for uFormat will return an ERROR_FEATURE_NOT_SUPPORTED error.

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:	L_AnnDeletePage, L_AnnDeletePageMemory, L_AnnDeletePageOffset, L_AnnFileInfo, L_AnnFileInfoMemory, L_AnnSaveMemory, L_AnnSaveOffset, L_AnnSaveTag, L_AnnSetOptions, L_AnnGetOptions, L_AnnSave
Topics:	Annotation Files
	Annotation Functions: Input and Output
	Implementing Annotations
	Implementing an Automated Annotation Program
	Implementing a Non-automated Annotation Program
	Annotation Features
	Annotation Functions: Saving Annotation Files

Example

This example creates an annotation container with two objects, saves ten copies of the container in a multipage annotation file, and then reloads the ten containers from the file.

#ifndef MAX_ANN_CONTAINERS
#define MAX_ANN_CONTAINERS (10)
#endif

L_VOID AnnSaveMultiExample(HWND hwnd, L_TCHAR *pszFileMultiOut)
{
   HANNOBJECT hContainer = NULL;
   HANNOBJECT hRect = NULL;
   HANNOBJECT hEllipse = NULL;

   ANNRECT rc = {0,0, 600,600};
   L_AnnCreateContainer(hwnd, &rc, TRUE, &hContainer);

   // Create a rectangle object
   ANNRECT rcRect = {20,20,120,120};
   L_AnnCreate(ANNOBJECT_RECT, &hRect);
   L_AnnSetForeColor(hRect, RGB(255,0,0), 0);
   L_AnnSetRect(hRect, &rcRect);
   L_AnnSetVisible(hRect, TRUE, 0, NULL);
   L_AnnInsert(hContainer, hRect, FALSE);

   // Create an ellipse object
   ANNRECT rcEllipse = {120,120,220,220};
   L_AnnCreate(ANNOBJECT_ELLIPSE, &hEllipse);
   L_AnnSetForeColor(hEllipse, RGB(0,0,255), 0);
   L_AnnSetRect(hEllipse, &rcEllipse);
   L_AnnSetVisible(hEllipse, TRUE, 0, NULL);
   L_AnnInsert(hContainer, hEllipse, FALSE);

   HANNOBJECT hObjects[MAX_ANN_CONTAINERS] = {0};
   for (int i=0; i<MAX_ANN_CONTAINERS; i++)
      hObjects[i] = hContainer;

   // This saves a multipage annotation file -- there will be MAX_ANNCONTAINERS pages
   L_AnnSaveMulti(pszFileMultiOut, hObjects, MAX_ANN_CONTAINERS, ANNFMT_XML, FALSE, NULL);

   // Now load the multipage annotation file.  Assume we do not know the number of pages in the file.
   // Call the function twice -- the first time to get the number of pages in the multi-page annotation file
   L_INT nItemsRead = 0;
   L_AnnLoadMulti(pszFileMultiOut, NULL, 0, &nItemsRead, NULL);
   if (nItemsRead != 0)
   {
      HANNOBJECT *phObjects = new HANNOBJECT[nItemsRead];
      L_AnnLoadMulti(pszFileMultiOut, phObjects, nItemsRead, &nItemsRead, NULL);

      delete phObjects;
   }

   // Cleanup
   L_AnnDestroy(hContainer, ANNFLAG_RECURSE);

   MessageBox(hwnd, TEXT("Finished"), TEXT(""), MB_OK);

}