| LEADTOOLS Raster Imaging C DLL Help > Function References > L_AnnGetTag |
#include "l_bitmap.h"
L_LTANN_API L_INT L_AnnGetTag(hObject, puTag)
|
HANNOBJECT hObject; |
/* handle to the annotation object */ |
|
L_UINT32 * puTag; |
/* address of the variable to be updated */ |
Gets the tag of the specified annotation object. You can use this tag to uniquely identify objects when they are saved in a file.
|
Parameter |
Description |
|
hObject |
Handle to the annotation object. |
|
puTag |
Address of the variable to be updated with the object's tag. |
Returns
|
SUCCESS |
The function was successful. |
|
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Before calling this function, you must declare a variable of data type L_UINT32. Then, pass the address of the variable in the puTag parameter. This function will update the variable with the tag of the annotation object.
Required DLLs and Libraries
|
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: |
|
|
Topics: |
|
|
|
|
|
|
|
|
|
|
|
|
Example
For complete sample code, refer to the ANNOTATE example. This example shows how an active object's tag can be used to invoke a particular action.
L_INT AnnGetTagExample(HANNOBJECT hAnnObject)
{
L_INT nRet;
L_UINT32 ObjectTag; /* Tag used to identify an object */
L_UINT ActiveState; /* Specifies whether the object can be activated */
/* Get the tag and the active state */
nRet = L_AnnGetTag(hAnnObject, &ObjectTag);
if(nRet != SUCCESS)
return nRet;
nRet = L_AnnGetActiveState(hAnnObject, &ActiveState);
if(nRet != SUCCESS)
return nRet;
/* Take an action based on the tag and the active state */
if ((ObjectTag == 3) && (ActiveState == ANNACTIVE_ENABLED))
MessageBox (NULL, TEXT("This is what we do for No. 3"), TEXT("Notice"), MB_OK);
return SUCCESS;
}