Hi,
I'm using the CWGraph ActiveX control from MS 7 under LW/CVI 7.0 (Windows XP).
Everything worked fine up until now, although the lack of
documentation/example code for CVI concerning CwGraph makes things a
bit tough to figure out (I only found documentation related to VB/VC++).
But now, I can't figure out how to add a value pair to a given axis.
The way I understand things, a VP is related to a given axis, so I use
the following code to add a VP:
CAObjHandle axesHandle, yAxis, vpHandle;
/* Obtain handle for Y-axis */
ret = CWUIControlsLib_CWAxisItem(axesHandle, NULL, CA_VariantInt(2), &yAxis);
/* Add a ValuePair object to the axis */
ret = CWUIControlsLib_CWValuePairsAdd(yAxis, NULL, &vpHandle);
The first function returns 0 (I even changed min/max values for the axis to verify that I obtain the right handle).
But the second one fails with "Interface is not registered" (translation of the French message).
If anyone could point out what I'm doing wrong, it would be greatly appreciated.
Sincerely,
Viktor STARK
