ExposureTime
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Description

Returns or sets the value of the camera exposure time in microseconds or raw units.


Syntax


[VB]
objActiveUSB.ExposureTime [= Value]


[C/C++]
HRESULT get_ExposureTime( float *pValue );
HRESULT put_ExposureTime( float Value );



Data Type
[VB]

Single

Parameters
[C/C++]

pValue [out,retval]  
Pointer to the current exposure value  
Value [in]  
The exposure value to be set  


Return Values


S_OK  
Success  
E_NOINTERFACE        
The feature is not available for the selected camera  
E_INVALIDARG  
The value is out of range  
E_FAIL  
Failure to set the feature value  
 
 

Example


The following VB example demonstrates the use of a scroll control for real-time adjustment of the exposure time.

Private Sub
 Form_Load()

HScroll1.Value = ActiveUSB1.ExposureTime
HScroll1.Min = ActiveUSB1.GetExposureMin 
HScroll1.Max = ActiveUSB1.GetExposureMax
ActiveUSB1.Acquire=
True

End Sub


Private Sub
 HScroll1_Scroll()

ActiveUSB1.ExposureTime = HScroll1.Value

End Sub

 

Remarks


This property changes the integration time of the camera's sensor to a sub-value of the frame period. The valid range of the exposure values can be obtained by the GetExposureTimeMin and GetExposureTimeMax methods.

Note that the property is available only if the currently selected camera supports one of the following GenICam features: ExposureTime, ExposureTimeAbs, ExposureTimeRaw.