Deletes an existing user-defined annotation handle.
#include "ltwrappr.h"
virtual L_INT LAnnPointer::DeleteUserHandle(nIndex)
Index of the user-defined handle to delete. The index is zero based. Pass -1 to delete all user-defined handles. Passing a negative value other than -1 makes the function return ERROR_INV_PARAMETER.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
Call this function to delete a user-defined handle from the annotation object.
Set nIndex to -1 to delete all the user-defined handles for the annotation object.
Win32, x64.
// This examples deletes the first user handle of an object
L_INT LAnnPointer_DeleteUserHandleExample(LAnnPointer *LPointer)
{
L_INT nRet;
L_UINT uCount;
// Get the total count of user handles
nRet = LPointer->GetUserHandles(NULL, &uCount);
if(nRet != SUCCESS)
return nRet;
if (uCount > 0)
{
nRet = LPointer->DeleteUserHandle(0);
if(nRet != SUCCESS)
return nRet;
}
else
{
MessageBox(NULL, TEXT("No User Handles!"), TEXT("Error"), MB_OK);
return FAILURE;
}
return SUCCESS;
}
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