RMC_WriteRMCFile function.
Creates an RMC-string or RMC-file of an existing chart.

Syntax
nResult (LONG) = RMC_WriteRMCFile(
ByVal nCtrlId (LONG),
ByRef sRMCFile (ASCIIZ)
)
Parameter
nCtrlId (LONG)
Unique ID of the chart control.
sRMCFile (ASCIIZ)
If empty, the content for the file will be written into the string. If sRMCFile is a valid file name, the file will be created. If the file name has no extension, "RMC" will be append as extension.
Return value
0
No error, function succeeded.
RMC_ERROR_CTRLID
Wrong control ID (0 or no chart with this control ID was found).
RMC_ERROR_FILECREATE
Error while creating the file.
Remarks
Please see Concept of the RMC content string for a brief description of the concept of *.rmc-files.
Example
 'create a chart from a *.rmc-file:
i = RMC_CreateChartFromFile(nParentH,%ID_RMC,10,10,0,"mychart.rmc")
i = RMC_Draw(%ID_RMC1)  'draw the chart
.
.
' later, alter a property of the chart ...
i = RMC_SetCaptionText(%ID_RMC1,1,"New caption")
i = RMC_WriteRMCFile(%ID_RMC,"mychart.rmc")      ' ... and write the altered chart back to the RMC-file