#include "l_bitmap.h"
L_LTANN_API L_INT L_AnnGetAngle(hObject, pdAngle)
HANNOBJECT hObject; |
/* handle to the annotation object */ |
L_DOUBLE *pdAngle; |
/* address of a variable to be updated */ |
Gets the angle of the Protractor object in the object's unit of measurement, set by L_AnnSetProtractorOptions.
Parameter |
Description |
hObject |
Handle to the annotation object. |
pdAngle |
Address of a variable to be updated with the angle of the protractor object specified in hObject. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
This function is only valid for Protractor annotation objects (ANNOBJECT_PROTRACTOR).
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
Functions: |
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Example
L_INT EXT_CALLBACK annAngleCallback(HANNOBJECT hObject, L_VOID* pUserData); L_INT AnnGetAngleExample(HANNOBJECT hContainer//, /* Container annotation object */ /*ANNENUMCALLBACK annAngleCallback*/) { L_INT nRet; nRet = L_AnnEnumerate(hContainer, annAngleCallback, NULL, ANNFLAG_RECURSE|ANNFLAG_NOTCONTAINER, NULL); if(nRet != SUCCESS) return nRet; return SUCCESS; } L_INT EXT_CALLBACK annAngleCallback(HANNOBJECT hObject, L_VOID* pUserData) { UNREFERENCED_PARAMETER(pUserData); L_INT nRet; L_DOUBLE dAngle; L_UINT Type; L_TCHAR cs[256]; L_SIZE_T uAbbrevLen = 0; L_TCHAR *pszAbbrev = NULL; nRet = L_AnnGetType(hObject, &Type); if (nRet == SUCCESS) { switch (Type) { case ANNOBJECT_PROTRACTOR: uAbbrevLen = 0; pszAbbrev = NULL; L_AnnGetAngle(hObject, &dAngle); L_AnnGetProtractorOptions(hObject, NULL, NULL, &uAbbrevLen, NULL, NULL, NULL); pszAbbrev = (L_TCHAR *)malloc( uAbbrevLen * sizeof(L_TCHAR)); L_AnnGetProtractorOptions(hObject, NULL, NULL, &uAbbrevLen, pszAbbrev, NULL, NULL); _stprintf_s(cs, TEXT("The angle is %f %s.\n"), dAngle, pszAbbrev); MessageBox(NULL, cs, TEXT("Results"), MB_OK); free(pszAbbrev); break; default: MessageBox(NULL, TEXT("This object is not a protractor."), TEXT(""), MB_OK); } } return SUCCESS; }