L_AnnGetArea

#include "l_bitmap.h"

L_INT EXT_FUNCTION L_AnnGetArea(hObject, puCount)

HANNOBJECT hObject;	/* handle to the annotation object */
L_UINT32 L_FAR * puCount;	/* address of a variable to be updated */

Gets the pixel count of the specified annotation object. This function is available in the Document/Medical Toolkits.

Parameter	Description
hObject	Handle to the annotation object from which to get the pixel count.
puCount	Address of the variable to be updated with the pixel count.

Returns

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

Comments

The pixel count is the number of pixels contained in a region extracted from the annotation object, without resizing. It is equivalent to calling L_AnnGetRgnHandle with pRgnXForm set to NULL and then getting a pixel count of the resulting region.

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 95 / 98 / Me, Windows 2000 / XP.

See Also

Functions:	L_AnnGetRgnHandle
Topics:	Annotation Functions: Object Information
	Implementing Annotations
	Automated User Interface for Annotations
	Implementing an Automated Annotation Program
	Obtaining Annotation Object Information

Example

void TestFunction2(void)
{
HANNOBJECT hContainer;
ANNENUMCALLBACK annEnumCallback;
L_AnnEnumerate(hContainer, annEnumCallback, NULL, ANNFLAG_RECURSE|ANNFLAG_SELECTED, NULL);
}

L_INT EXT_CALLBACK annEnumCallback(HANNOBJECT hObject, L_INT L_FAR * pUserData)
{
L_INT nRet;
L_UINT32 Count;
L_TCHAR cs[80];

nRet = L_AnnGetArea(hObject, &Count);
if (nRet == SUCCESS)
{
  wsprintf(cs, TEXT("Pixel count = %ld\n"), Count);
  MessageBox(NULL, cs, TEXT("Notice"), MB_OK);
}
else
{
  wsprintf(cs, TEXT("Error #  %d\n"), nRet);
  MessageBox(NULL, cs, TEXT("Error"), MB_OK);
}
return SUCCESS;
}