L_GetOverlayAttributes

#include "l_bitmap.h"

L_LTKRN_API L_INT L_GetOverlayAttributes(pBitmap, nIndex, pOverlayAttributes, uStructSize, uFlags)

pBITMAPHANDLE pBitmap;	/* pointer to the main bitmap handle */
L_INT nIndex;	/* the overlay index */
pOVERLAYATTRIBUTES pOverlayAttributes;	/* pointer to the overlay attributes structure to be updated */
L_UINT uStructSize;	/* the size of the OVERLAYATTRIBUTES structure pointed to by pOverlayAttributes */
L_UINT uFlags;	/* flags that determine which attributes to retrieve */

Gets one or more overlay attributes for the specified index.

Parameter	Description
pBitmap	Pointer to the bitmap handle referencing the main bitmap.
nIndex	The index of the overlay for which to get the attributes. This index is zero-based.
pOverlayAttributes	Pointer to the structure to be updated with the specified overlay attributes.
uStructSize	Size of the OVERLAYATTRIBUTES structure pointed to by pOverlayAttributes. Pass sizeof(OVERLAYATTRIBUTES).
uFlags	Flags that determine which attributes to retrieve. You can or these flags. Possible values are:
	Value	Meaning
	OVERLAYATTRIBUTES_ORIGIN	[0x0001] The top-left position should be retrieved. pOverlayAttributes ->ptOrigin will be updated with the top-left offset.
	OVERLAYATTRIBUTES_COLOR	[0x0002] Indicates the color should be retrieved. pOverlayAttributes ->crColor will be updated with the color.
	OVERLAYATTRIBUTES_FLAGS	[0x0004] Indicates the flags should be retrieved. pOverlayAttributes ->uFlags will be updated with the flags.
	OVERLAYATTRIBUTES_BITINDEX	[0x0008] Indicates the corresponding bitplane position should be retrieved. pOverlayAttributes-> uBitPosition will be updated with the bitplane index.
	OVERLAYATTRIBUTES_DICOM	[0x0010] Indicates that the DICOM-related attributes should be retrieved, this includes:
		pOverlayAttributes->uRows,
		pOverlayAttributes->uColumns,
		pOverlayAttributes->szType,
		pOverlayAttributes->uBitsAllocated,
		pOverlayAttributes->szDescription,
		pOverlayAttributes->szSubtype,
		pOverlayAttributes->szLabel,
		pOverlayAttributes->nROIArea,
		pOverlayAttributes->fROIMean,
		pOverlayAttributes->fROIStandardDeviation,
		pOverlayAttributes->nNumFramesInOverlay,
		pOverlayAttributes->uImageFrameOrigin,
		pOverlayAttributes->szActivationLayer

Returns

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

Comments

The retrieved values will be stored in the structure pointed by pOverlayAttributes. pOverlayAttributes ->uStructSize will be set to the value of the parameter uStructSize. Only the uStructSize member of pOverlayAttributes and the values retrieved by the function will be updated. The other values are left unchanged.

Required DLLs and Libraries

LTKRN

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.

Functions:	L_SizeBitmap, L_StartResize, L_Resize, L_StopResize, L_SetOverlayBitmap, L_GetOverlayBitmap, L_SetOverlayAttributes, L_UpdateBitmapOverlayBits, L_GetOverlayCount, OVERLAYATTRIBUTES, L_BricksTextureBitmap, L_CanvasBitmap, L_DisplaceMapBitmap, L_FragmentBitmap, L_VignetteBitmap
Topics:	Raster Image Functions: Combining Images
	Overlay Overview