BlackLevelSelector

Description

Returns or sets the channel to be controlled by black level adjustments. Can be one of the following values:

"All"

Black level adjustments will be applied to all channels.

"Red"

Black level adjustments will be applied to the red channel.

"Green"

Black level adjustments will be applied to the green channel.

"Blue"

Black level adjustments will be applied to the blue channel.

"Y"

Black level adjustments will be applied to Y channel.

"U"

Black level adjustments will be applied to U channel.

"V"

Black level adjustments will be applied to V channel.

Syntax

[VB]
objActiveGige.BlackLevelSelector [= Value]

[C/C++]
HRESULT get_BlackLevelSelector( string *pValue );
HRESULT put_BlackLevelSelector( string Value );


Data Type [VB]

String

Parameters [C/C++]

pValue [out, retval]

Pointer to the string specifying the black level channel setting

Value [in]

The black level channel to be set

Return Values

S_OK

Success

E_NOINTERFACE

The feature is not available for the selected camera

E_INVALIDARG

The value is not part of the enumerated set

E_FAIL

Failure to set the feature value

Example

The following VB example demonstrates the use of a combo box to switch between different black level channels:

Private Sub Form_Load()
Lst = ActiveGige1.GetEnumList("BlackLevelSelector")
For i = 0 To UBound(Lst)
Combo1.AddItem (Lst(i))
Next
Combo1.ListIndex = ActiveGige1.BlackLevelSelector
End Sub

Private Sub Combo1_Click()
ActiveGige1.BlackLevelSelector = Combo1.Text
End Sub

Remarks

Depending on a camera model, other device-specific values may be available for this feature. The list of valid values can be retrieved using GetEnumList.

Note that the property is available only if the currently selected camera supports the BlackLevelSelector feature per GenICam standard.