L_AnnAddUserHandle
#include "l_bitmap.h"
L_LTANN_API L_INT L_AnnAddUserHandle(hObject, pAnnHandle)
HANNOBJECT hObject; |
/* handle to the annotation object */ |
pANNHANDLE pAnnHandle; |
/* pointer to a structure that defines the user handle */ |
Adds a user-defined handle to an annotation object, where pAnnHandle is a pointer to the structure defining an annotation handle.
Parameter |
Description |
hObject |
Handle to the annotation object to which to add the user handle. |
pAnnHandle |
Pointer to a structure that defines the user handle. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Before calling this function, you must create the annotation object.
Call this function one or more times to add user handles to an existing annotation object.
The user handle location can be defined using container coordinates or client coordinates.
Client coordinates factor in the current zoom factor, and the horizontal and vertical scrolling.
For more information on defining a user handle, see the documentation for the ANNHANDLE structure.
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. |
Win32, x64.
See Also
Example
// This example adds user handles to the center of the top and bottom lines of a rectangle // hRect is a rectangle L_INT AnnAddUserHandleExample(HANNOBJECT hRect) { L_INT nRet; ANNHANDLE AnnHandle; L_UINT uType; ANNRECT arc; nRet = L_AnnGetType(hRect, &uType); if(nRet != SUCCESS) return nRet; if (uType == ANNOBJECT_RECT) { nRet = L_AnnGetRect(hRect, &arc, NULL); if(nRet != SUCCESS) return nRet; memset(&AnnHandle, 0, sizeof(ANNHANDLE)); AnnHandle.uStructSize = sizeof(ANNHANDLE); AnnHandle.nID = 100; AnnHandle.bVisible = TRUE; AnnHandle.crPen = RGB(0,0,0); AnnHandle.crFill = RGB(255,0,0); AnnHandle.nShape = ANNHANDLE_SHAPE_CIRCLE; AnnHandle.hCursor = NULL; AnnHandle.uFlags = ANNHANDLE_ID | ANNHANDLE_LOCATION | ANNHANDLE_CONTAINER_COORDINATES | ANNHANDLE_VISIBLE | ANNHANDLE_PEN_COLOR | ANNHANDLE_FILL_COLOR | ANNHANDLE_SHAPE; AnnHandle.aptContainer.x = (arc.left + arc.right)/2; AnnHandle.aptContainer.y = arc.top; nRet = L_AnnAddUserHandle(hRect, &AnnHandle); if(nRet != SUCCESS) return nRet; AnnHandle.aptContainer.x = (arc.left + arc.right)/2; AnnHandle.aptContainer.y = arc.bottom; nRet = L_AnnAddUserHandle(hRect, &AnnHandle); if(nRet != SUCCESS) return nRet; } else { MessageBox(NULL, TEXT("Annotation object must be a Rectangle."), TEXT("Error"), MB_OK); return 0; } return SUCCESS; }