Unibrain API-810 User Manual download pdf (Page 55)

C++ syntax

BSTR Description;

HRESULT hr = pIUserDefined->get_Description(&Description);

SetROI method

Prototype

Boolean SetROI(

IN Integer Left,

IN Integer Top,

IN Integer Width

IN Integer Height

)

Comments

This method is used to set the desired coordinates and size of the Region of Interest for the

FireiXUserDefinedStreamFormat.

The Left and Top values must be greater than or equal to 0 and less than or equal to the MaxWidth and

MaxHeight properties respectively. They must also be perfectly divisible by HorizontalPositionUnit

and VerticalPositionUnit respectively.

The Width and Height values must be greater than or equal to WidthUnit and HeightUnit respectively

and less than or equal to MaxWidth and MaxHeight respectively. They must also be perfectly divisible by

WidthUnit and HeightUnit respectively. Additionally, they must not be greater than the available rectangle

as set by the Left and Top values (i.e., the sum of Width and Left must not be greater than MaxWidth and

the sum of Height and Top must not be greater than MaxHeight).

The method will return True or False, depending on whether the above conditions are met. It will not query

the camera for validity; any checks are made inside the SDK, according to the reported parameters of the

camera.

Visual Basic 6.0 syntax

Dim Result As Boolean

Result = UserDefined.SetROI(0, 0, 160, 120)

C++ syntax

VARIANT_BOOL bResult;

HRESULT hr = pIUserDefined->SetROI(0, 0, 160, 120, &bResult);

IsValid method

Prototype

Boolean IsValid()

Comments

This method will return True if the currently set properties of the FireiXUserDefinedStreamFormat are

acceptable by the camera.

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Unibrain API-810 User Manual Page 55