Queries whether the Source supports a particular operation on the capability.
| ActiveX Edition | Plug-in Edition | Mac Edition |
|---|---|---|
| Since V1.0 | Since V4.0 | Since V6.4 |
Boolean ObjectName. CapIfSupported(Integer MessageType)
Integer(enumerated value) MessageType: specifies the type of capability operation.
Value Description TWQC_GET (1) If CapGet() is supported by the capability. TWQC_SET (2) If CapSet() is supported by the capability. TWQC_GETDEFAULT (4) If CapGetDefault() is supported by the capability. TWQC_GETCURRENT (8) If CapGetCurrent() is supported by the capability. TWQC_RESET (16) If CapReset() is supported by the capability.
Boolean.
TRUE indicates success. FALSE indicates failure.
When an error occurs and IfThrowException property is TRUE, an exception will be thrown.
When FALSE is returned or an exception is thrown, check ErrorCode property and ErrorString property for error information.
The capability to query should be set in Capability property before calling CapIfSupported().
Capability property, CapSet(), CapGet(), CapGetCurrent(), CapGetDefault(), CapReset()
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