Remarks
Obtains the unique identification number of a specific graphic item of a given type.
For details about graphic items management on the waveform analyzer refer to the How to add graphic items to the Waveform analyzer section.
Syntax
[C++]
short control.GraphicItemUniqueIdGet (
enumGraphicItemType nType,
short nIndex,
short *nUniqueId
);
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Parameter
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Description
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nType
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The type of graphic item.
Supported values are the following:
Mnemonic constant
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Numeric value
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Meaning
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GRAPHIC_ITEM_VERTICAL_LINE
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0
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Vertical lines
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GRAPHIC_ITEM_HORIZONTAL_LINE
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1
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Horizontal lines
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GRAPHIC_ITEM_WAVE_RANGE
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2
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Wave ranges
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nIndex
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Zero-based index of the graphic item. The total number of available graphic items can be obtained through the GraphicItemsTypeCountGet method.
It's important to note that, after eventually removing graphic items through the GraphicItemRemove method, you will have to perform a new call to the GraphicItemsTypeCountGet in order to have an update enumeration of graphic items and in order to avoid misalignments of the zero-based index.
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nUniqueId
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Reference that, on return from the method call, will contain the unique identification number of the given graphic item.
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Return value
Value
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Meaning
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Negative value
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An error occurred (see the LastError property for further error details)
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enumWanErrorCodes.ERR_WAN_NOERROR (0)
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The method call was successful.
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