Physics Engine API (Compact 7)
3/12/2014
You use CreatePhysicsEngine to create an engine instance with initial point, velocity, angle and desired effects, such as deceleration and boundary bounce. You must create a separate instance of the physics engine for each set of animation points. At any time after you create the engine instance, you can query its state using QueryPhysicsEngine, retrieving the position offset, velocity and current completion status. The physics engine supports both user mode and kernel mode callers.
The physics engine API is defined in %_WINCEROOT%\public\common\oak\inc\PhysicsEngine.h. For reference information, see Touch Gestures Physics Engine Reference.
The following table describes the exported functions included in this API.
| Function | Description |
|---|---|
Creates a physics engine and configures it with the specified parameters. |
|
Destroys a physics engine. |
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Queries the state of the physics engine, retrieving the position offset, velocity, and completion status of the engine at the time last specified by a call to SetPhysicsEngineUserTime. |
|
Sets the current timestamp of the physics engine. The time is set to 0 (zero) upon construction. The time is specified relative to the start of the animation. |
|
PanPhysicsEngine |
Moves a physics engine in panning mode. Fails with E_UNEXPECTED if the physics engine object is not in panning mode. |
FlickPhysicsEngine |
Causes a physics engine in panning mode to enter flicking mode. Fails with E_UNEXPECTED if the physics engine object is not in panning mode. |