When I try to click to the "Help..." button of main property window of teechart I receive the OLE Error above. I've teechart pro 7.12 and BDS 2006.

Regards,
Massimiliano Coros

i've installed Teechart pro 7.06 but i can't install TQrchart component, when i try to install DCLTQR77.dpk i receive the following error: "Cannot load package 'qrpt70.' It contains unit 'QREnvEd,'which is also contained in package 'QR4RunD7' How can I resolve this problem? Regards, Max P.S. On your...

Hi, I'm sorry for bother you but i i've tried your code, and i think there was some misunderstanding, i must repruduce a graph like this:



and i must drag (left and rigth) the yellow vertical lines.

Regards,
Massimiliano

Hi I've tried to use the code but i obtain a very wide band, I've reduced the wide of the band but the heigth is still equal to graph panel and if i vertical scroll the graph the band is still here. There is another problem, when i try to set dragging at runtime it have no effect, this code don't wo...

Hi thank's for your help, i've tried it and it works fine, but i need that the line height is adjustable and not fixed to the graph panel. i need that the line heigth is about half of the graph panel height..

I must create horizontal-draggable vertical lines over a graph, moreover i must know what value them have over a serie..

Somebody could help me?

Reagards

I must calculate the area under a LineSerie (the integral).

How i can do it?

Regards,
Max