The Developer's Reference
Writing Mathcad DLLs
The Data Acquisition Control
Scripting Custom OLE Objects
Mathsoft Controls
    Buttons
       Mathsoft Control Button Classes
       CheckBox Control
       RadioButton Control
       Button Events
       Button Format Properties
       Button Methods
       Button State Properties
    ListBoxes
    Sliders
    TextBoxes
    Using Controls Together
Automation Interfaces
The Component SDK