IXYChartStringApproxMeasurer.XYChartMeasureStringApproximately (METH)¶

METHOD XYChartMeasureStringApproximately : Visu_TypeString

Measures a given string using a given font and inserts line breaks at the corresponding positions in order that the string fits into a given length. The return value is the modified string

InOut:

Scope	Name	Type	Comment
Return	XYChartMeasureStringApproximately	Visu_TypeString
Input	pabyCharWidths	POINTER TO ARRAY [0..0] OF BYTE	Points to an array, that contains character widths of represetative characters for each used font. The actual parameter is not of this type and the implementor (in the target visu) knows the correct declaration of this array. Not needed in the integrated visualization, therefore an arbitrary array is used.
	pbyString	Visu_TypeString	The string to measure
	xWstring	BOOL	If TRUE, then pbyString is a POINTER TO WSTRING otherwise a POINTER TO STRING
	iBufferSize	INT	The size of the string pbyString in bytes. This parameter has to be positive in order to have line breaks inserted value = 0: we dont insert line breaks, just measure the length of the string
	sFontName	STRING	The name of the font to use
	iFontHeight	INT	The height of the font to use
	dwFontFlags	DWORD	The flags of the font to use
	iMaxLength	INT	The maximum length of the string in pixels, that does not require a line break value = 0: we dont insert line breaks, just measure the length of the string
Output	iLength	INT	Returns the length of the string (the maximum length of single lines within a multiline string). The return value is an approximate length or a negative value if the string cannot be measured at the moment (in this case in the next update-paint cycle a subsequent call of this method will return the length).
	iHeight	INT	Returns the height of the string. Because the font is the same for all the line, the height is referred to a single line
	iCountLines	INT	Returns the number of lines the string spans, including automatically determined line breaks