Description
|
Removes the specified function from
the list of registered callbacks. |
|
Parameters |
Callback
function address. |
|
Returns |
0 = fail, 1 = OK. |
|
Notes |
All registered functions must
be unregistered before a program terminates. |
|
See also |
Register data callback routine |
|
|
Unregister data callback routine |
|
|
Unregister data callback routine context |
Visual C++ Declaration/example
BOOL TBAPI
TBApiUnregisterDataCallback(TB_DATA_CALL aFunc);
// Capture XY coordinates by registering callback function ‘CBFunc’
BOOL result;
HTBDEVICE dev = TBApiGetRelativeDevice(0);
result = TBApiRegisterDataCallback(dev,0,_ReadDataTypeXY,CBFunc);
...
…
…
result =
TBApiUnregisterDataCallback(CBFunc);
Public Declare Function
TBApiUnregisterDataCallback Lib "TBapi" Alias
"_DLL_TBApiUnregisterDataCallback@4" (ByVal FuncAddr As Long) As Long
' Capture XY coordinates by registering callback function 'CBFunc'
Dim dev As Byte
Dim result as Boolean
dev = TBApiGetRelativeDevice(0)
result = TBApiRegisterDataCallback(dev, 0, ReadDataTypeXY, AddressOf
CBFunc)
…
…
…
result = TBApiUnregisterDataCallback(AddressOf CBFunc)