IDirectManipulationPrimaryContent::SetSnapCoordinate method (directmanipulation.h)

Specifies the coordinate system for snap points or snap intervals.

Syntax

HRESULT SetSnapCoordinate(
  [in] DIRECTMANIPULATION_MOTION_TYPES         motion,
  [in] DIRECTMANIPULATION_SNAPPOINT_COORDINATE coordinate,
  [in] float                                   origin
);

Parameters

[in] motion

One of the values from DIRECTMANIPULATION_MOTION_TYPES.

[in] coordinate

One of the values from DIRECTMANIPULATION_SNAPPOINT_COORDINATE.

If motion is set to translation (DIRECTMANIPULATION_MOTION_TRANSLATEX or DIRECTMANIPULATION_MOTION_TRANSLATEY), all values of DIRECTMANIPULATION_SNAPPOINT_COORDINATE are valid.

If motion is set to DIRECTMANIPULATION_MOTION_ZOOM, only DIRECTMANIPULATION_COORDINATE_ORIGIN of DIRECTMANIPULATION_SNAPPOINT_COORDINATE is valid (origin must be set to 0.0f).

[in] origin

The initial, or starting, snap point. All snap points are relative to this one. Only used when DIRECTMANIPULATION_COORDINATE_ORIGIN is set.

If motion is set to DIRECTMANIPULATION_MOTION_ZOOM, then origin must be set to 0.0f.

Return value

If the method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

The origin is relative to the content boundaries. If no boundary has been set (SetContentRect is never called) the default boundaries are (-FLT_MAX, FLT_MAX).

Requirements

Requirement	Value
Minimum supported client	Windows 8 [desktop apps only]
Minimum supported server	Windows Server 2012 [desktop apps only]
Target Platform	Windows
Header	directmanipulation.h

See also

IDirectManipulationPrimaryContent

SetSnapInterval

SetSnapPoints