[DirectX 8.1 C/C++ Programmer's Reference] Periodic Effects (80.6818181818182%)

DirectX 8.1 (C++) > DirectInput > Using DirectInput > Force Feedback > Effect Types

[DirectX 8.1 Visual Basic Programmer's Reference] Periodic Effects (80.6818181818182%)

DirectX 8.1 (Visual Basic) > DirectInput > Using DirectInput > Force Feedback > Effect Types

[DirectX October 2006 Documentation] Periodic Effects (77.2727272727273%)

DirectX Input > DirectInput > Programming Guide > Force Feedback > Effect Types

[DirectX 5 Programmer's Reference] Periodic Effects (44.9675324675325%)

DirectX Foundation > DirectInput > DirectInput Essentials > Force Feedback

[DirectX 6 Programmer's Reference] Periodic Effects (44.9675324675325%)

DirectX Foundation > DirectInput > DirectInput Essentials > Force Feedback

[DirectX October 2006 Documentation] Periodic (30.9253246753247%)

DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX.DirectInput > Structures > Periodic > Methods

[DirectX October 2006 Documentation] Periodic (28.8270637408568%)

DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX.DirectInput > Structures

[DirectX October 2006 Documentation] Periodic (27.0562770562771%)

DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX.DirectInput > Structures > Effect > Fields