PolyBezierVariant (ImageKit Control/PrintDraw Method)

This method draws a bezier curve in the designated object (the screen, printer, or image data).

[Visual Basic] [ Boolean = ]imagekitcontrolname.PrintDraw.PolyBezierVariant(DeviceValue As LONG_PTR, x As Variant, y As Variant, DeviceMode As OutPutDeviceModeConstants)

[VB.NET] [ Boolean = ]imagekitcontrolname.PrintDraw.PolyBezierVariant(DeviceValue As Integer(x86) or Long(x64), ByRef x As Object, ByRef y As Object, DeviceMode As ImageKit10(A)Lib.OutPutDeviceModeConstants)

[C#.NET] [ bool = ]imagekitcontrolname.PrintDraw.PolyBezierVariant(int(x86) or long(x64) DeviceValue, ref object x, ref object y, ImageKit10(A)Lib.OutPutDeviceModeConstants DeviceMode)

* ImageKit10ALib refers to the ANSI version, ImageKit10Lib refers to the Unicode version, (x86) refers to the 32 bit version, and (x64) refers to the 64 bit version.

Parameters

Name	Explanation
DeviceValue	The device context or the raster image data (i.e. Hdc or ImageHandle) depending on the DeviceMode
x,y	An array of x and y coordinate values defining points of the polygon
DeviceMode	If 0 (ikScreen), then the bezier curve will be drawn in pixel units. If 1 (ikPrinter), the bezier curve will be drawn in 0.1mm units. If 2 (ikMemoryHandle), the bezier curve will be drawn (in pixel units) to the image data according to the DeviceValue parameter
* NOTE for retrieving array values: In Visual Basic / VB.NET, if Dim x(0 to 2), then the arguments are returned in x. In C#.NET the arguments are returned in ref x.

The following constants can be used: (ikScreen = 0, ikPrinter = 1, ikMemoryHandle = 2).

Return Value

Returns True (nonzero) if successful. Returns False (0) if unsuccessful.

Explanation

The PolyBezier method draws a bezier curve in the designated object.

This method is recommended when using scripting or other languages that require variant types or when using 64 bit builds in VB.NET or C#.

The initial bezier curve consists of 4 points, a start point, 2 control points, and an endpoint. Thereafter the bezier curve consists of 3 points (the control points and endpoint).

To execute this method, the following properties should be set PenWidth, PenStyle, PenMode, PenColor, Transparent, and BackColor. The BackColor property is enabled when the Transparent property is False and the pen is set to draw solid lines.

The value contained in the Points parameter must be (3 X the number of beziers) + a start point

Also see the PolyBezier method.

If the DeviceMode parameter is 0 or2 then x and y parameters are in pixel units.

If the DeviceMode parameter is 1 then x and y parameters are in 0.1mm units.

Sample code:

VB.NET

Dim Ret As Boolean

Dim CurveX(3) As Integer

Dim CurveY(3) As Integer

CurveX(0) = 10: CurveY(0) = 100

CurveX(1) = 50: CurveY(1) = 50

CurveX(2) = 100: CurveY(2) = 150

CurveX(3) = 150: CurveY(3) = 100

ImageKit1.PrintDraw.ClearProperty()

ImageKit1.PrintDraw.PenColor = ColorTranslator.ToWin32(Color.Green)

ImageKit1.PrintDraw.PenStyle = 1

ImageKit1.PrintDraw.PenWidth = 15

Dim X As Object = CType(CurveX, Object)

Dim Y As Object = CType(CurveY, Object)

Ret = ImageKit1.PrintDraw.PolyBezierVariant(hDC, X, Y, 0)

C#.NET

bool Ret;

int[] CurveX = new int[4];

int[] CurveY = new int[4];

CurveX[0] = 10; CurveY[0] = 100;

CurveX[1] = 50; CurveY[1] = 50;

CurveX[2] = 100; CurveY[2] = 150;

CurveX[3] = 150; CurveY[3] = 100;

ImageKit1.PrintDraw.ClearProperty();

ImageKit1.PrintDraw.PenColor = (uint)ColorTranslator.ToWin32(Color.Green);

ImageKit1.PrintDraw.PenStyle = ImageKit10Lib.PenStyleConstants.ikPenSolid;

ImageKit1.PrintDraw.PenWidth = 15;

object X = (object)CurveX;

object Y = (object)CurveY;

Ret = ImageKit1.PrintDraw.PolyBezierVariant(hDC, ref X, ref Y, ImageKit10Lib.OutPutDeviceModeConstants.ikScreen);

Differences between the ImageKit7/8

The DeviceValue argument's type has changed.