RMC_CreateChartOnDC function.
Create a new chart on a device context (DC).
Syntax
	nResult (LONG) = RMC_CreateChartOnDC( ByVal nParentDC (LONG), ByVal nCtrlId (LONG), ByVal nX (LONG), ByVal nY (LONG), ByVal nWidth (LONG), ByVal nHeight (LONG), Optional ByVal nBackColor (LONG), Optional ByVal nCtrlStyle (LONG), Optional ByVal nExportOnly (LONG), Optional ByRef sBgImage (ASCIIZ), Optional ByRef sFontName (ASCIIZ), Optional ByVal nBitmapBKColor (LONG) )
Parameter
	nParentDC (LONG)
		Device context, on which the chart shall be painted. See Remarks
	nCtrlId (LONG)
		Unique ID of the control.
	nX (LONG)
		Upper left corner of the chart in the parent DC (in Pixel).
	nY (LONG)
		Top corner of the chart in the parent DC (in Pixel).
	nWidth (LONG)
		Width of the chart (in Pixel).
	nHeight (LONG)
		Height of the chart (in Pixel).
	nBackColor (LONG)
		Backcolor of the chart (as a Color... constant). If omitted or 0: %ColorAliceBlue.
	nCtrlStyle (LONG)
		Style of the chart as a control style constant. If omitted or 0: RMC_CTRLSTYLEFLAT.
	nExportOnly (LONG)
		If TRUE the chart cannot be displayed on the screen, it must be drawn with either RMC_Draw2File(), RMC_Draw2Printer() or RMC_Draw2Clipboard(). If omitted or 0: FALSE.
	sBgImage (ASCIIZ)
		The full name of the file for the background image, if you choose as nCtrlStyle %RMC_CTRLSTYLEIMAGE or %RMC_CTRLSTYLEIMAGETILED. With %RMC_CTRLSTYLEIMAGE the image will be scaled accordingly the size of your chart, therefore you should choose an image size which has the same or a similar ratio of width and height as your chart and which should be rather bigger than smaller than your chart, if it has not the same size. Load file bars with image.rmc into the Designer for an example. %RMC_CTRLSTYLEIMAGETILED will not scale the image, but repeat it until the whole chart is filled with the image. This style is convenient if you want to use a small GIF or BMP to create a pattern or texture as background for your chart. Load file grouped bars.rmc into the Designer for an example. If you use an image as background for your chart you normally should choose as nBackColor the constant %ColorTransparent (which you also should choose for the background of the grid in grid-based and XY charts, otherwise it covers your image). But you als could choose a color as background additional to the image: in this case the color will be painted semi-transparent over the image to generate a special effect. Load file donut with image.rmc into the Designer for an example of this case.
	sFontName (ASCIIZ)
		Name of a TrueType font, which shall be used. If omitted or 0: "Tahoma" is used.
	nBitmapBKColor (LONG)
		Sets the color for the bitmap, which is the "canvas" for all drawing routines. If omitted or 0: the same color is used as the background color of the window or control, whose DC is used for creating the chart. This parameter is very useful in three cases: You choosed as nCtrlStyle RMC_CTRLSTYLEFLATSHADOW and you want to export your chart into a bitmap to include it in a website, which has another color than the window, in which you've created the chart: choose the same color for nBitmapBKColor to avoid the small (grey) rectangles in the upper right and lower left corner of your chart. If you choose ColorTransparent for nBitmapBKColor, you will get a transparent chart control. In this case you must also choose ColorTransparent for parameter nBackColor and, if your chart is gridbased, for the grid to be able to "look through" your chart. Note: the chart is not real transparent, it only simulates transparency, but as long as you don't move it over the window, the transparency effect works very well. Note 2: if you've created your chart and you change anything at runtime with one of the RMC_Set...() functions, you must clear the form/control, whose DC is used, before you call RMC_Draw() to redraw the chart, otherwise the changes get painted over the previous chart. I see no way, to do this from within the DLL. You want to create a real transparent bitmap of your chart: choose ColorTransparent and write your chart into a *.emf file or a *.png file.
Return value
	0
		No error, function succeeded.
	RMC_ERROR_PARENTHANDLE
		Parent DC is 0.
	RMC_ERROR_CTRLID
		Wrong control ID (0).
	RMC_ERROR_MAXINST
		The maximum count of control instances (20) within one programm is exceeded.
	RMC_ERROR_NOGDIP
		No GDIPLUS.DLL was found.
Remarks
		This way of creating a chart is intended for use with Visual Basic. You can use the DC of the Form or the DC of a PictureBox. You must always include in the Form_Paint event of the Form a call to RMC_Paint(), and in the Form_Unload event a call to RMC_DeleteChart().