References ▼
#include "l_bitmap.h"
L_LTIVW_API L_INT EXT_FUNCTION L_DispContainerGetAnnotationCallBack(hCellWnd, ppfnCallBack, ppUserData)
Gets the current annotation callback function along with the user data, which were set using L_DispContainerSetAnnotationCallBack.
A handle to the window that represents the Medical Viewer Cell.
Pointer to a pointer to a callback function to be updated with the last annotation callback function set using L_DispContainerSetAnnotationCallBack.
Void pointer to be updated with the value of user defined data associated with the tag callback. If you are not interested in the user-defined data, pass NULL for this parameter.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
Required DLLs and Libraries
This example will convert the rectangle, ellipse or hilite annotation into region once the user clicks on them.
L_INT EXT_CALLBACK AnnotationCallBack(HWND hCellWnd,L_UINT uMessage,L_INT nX,L_INT nY,L_INT nCellIndex,L_INT nSubCellIndex,L_VOID * pUserData){UNREFERENCED_PARAMETER(nX);UNREFERENCED_PARAMETER(nY);UNREFERENCED_PARAMETER(nCellIndex);UNREFERENCED_PARAMETER(uMessage);UNREFERENCED_PARAMETER(pUserData);DISPCONTAINERANNATTRIBS AnnAttrib;AnnAttrib.uStructSize = sizeof(DISPCONTAINERANNATTRIBS);L_DispContainerGetSelectedAnnotationAttributes(hCellWnd, nSubCellIndex, &AnnAttrib, 0);switch(AnnAttrib.uType){case ANNOBJECT_RECT:case ANNOBJECT_ELLIPSE:case ANNOBJECT_HILITE:L_DispContainerAnnToRgn(hCellWnd, nSubCellIndex, L_RGN_OR, TRUE, 0);break;}return SUCCESS;}L_INT DispContainerAnnotationCallbacksExample(HDISPCONTAINER hCon){DISPCONTAINERANNOTATIONCALLBACK oldCallBack;L_VOID * pOldUserData;if (L_DispContainerGetCellCount(hCon, 0) == 0){MessageBox(NULL, TEXT("you must at least have one cell added to the viewer"), TEXT("No Cell attached"), MB_OK);return FAILURE;}HWND hCellWnd = L_DispContainerGetCellWindowHandle(hCon, 0, 0);L_DispContainerGetAnnotationCallBack(hCellWnd, &oldCallBack, &pOldUserData);L_DispContainerSetAnnotationCallBack(hCellWnd, AnnotationCallBack, hCon);return SUCCESS;}