OpenNI 1.5.7
Modules | Functions

Modules

 Cropping Capability
 
 Anti Flicker Capability
 

Functions

XN_C_API XnUInt32 XN_C_DECL xnGetSupportedMapOutputModesCount (XnNodeHandle hInstance)
 
XN_C_API XnStatus XN_C_DECL xnGetSupportedMapOutputModes (XnNodeHandle hInstance, XnMapOutputMode *aModes, XnUInt32 *pnCount)
 
XN_C_API XnStatus XN_C_DECL xnSetMapOutputMode (XnNodeHandle hInstance, const XnMapOutputMode *pOutputMode)
 
XN_C_API XnStatus XN_C_DECL xnGetMapOutputMode (XnNodeHandle hInstance, XnMapOutputMode *pOutputMode)
 
XN_C_API XnStatus XN_C_DECL xnRegisterToMapOutputModeChange (XnNodeHandle hInstance, XnStateChangedHandler handler, void *pCookie, XnCallbackHandle *phCallback)
 
XN_C_API void XN_C_DECL xnUnregisterFromMapOutputModeChange (XnNodeHandle hInstance, XnCallbackHandle hCallback)
 
XN_C_API XnUInt32 XN_C_DECL xnGetBytesPerPixel (XnNodeHandle hInstance)
 

Detailed Description

A Map Generator node is a Generator that has output data in the form of a pixel map. It supports all Generator functions, and adds additional functions.

Function Documentation

◆ xnGetBytesPerPixel()

XN_C_API XnUInt32 XN_C_DECL xnGetBytesPerPixel ( XnNodeHandle  hInstance)

Gets the number of bytes per pixel for this map generator.

Parameters
hInstance[in] A handle to the instance.
Returns
(XnUInt32)-1 if this production node is not a map generator.

◆ xnGetMapOutputMode()

XN_C_API XnStatus XN_C_DECL xnGetMapOutputMode ( XnNodeHandle  hInstance,
XnMapOutputMode pOutputMode 
)

Gets the current output mode.

Parameters
hInstance[in] A handle to the instance.
pOutputMode[out] Current output mode.
Returns
XN_STATUS_INVALID_OPERATION if this production node is not a map generator.

◆ xnGetSupportedMapOutputModes()

XN_C_API XnStatus XN_C_DECL xnGetSupportedMapOutputModes ( XnNodeHandle  hInstance,
XnMapOutputMode aModes,
XnUInt32 *  pnCount 
)

Gets a list of all supported modes. The size of the array that should be passed can be obtained by calling xnGetSupportedMapOutputModesCount().

Parameters
hInstance[in] A handle to the instance.
aModes[in/out] An array to be filled with supported modes.
pnCount[in/out] In: number of elements allocated in the array. Out: number of elements actually written to the array.
Returns
XN_STATUS_INVALID_OPERATION if this production node is not a map generator.

◆ xnGetSupportedMapOutputModesCount()

XN_C_API XnUInt32 XN_C_DECL xnGetSupportedMapOutputModesCount ( XnNodeHandle  hInstance)

Gets the number of supported modes. This is useful for allocating an array that will be passed to xnGetSupportedMapOutputModes().

Parameters
hInstance[in] A handle to the instance.
Returns
0 if this production node is not a map generator.

◆ xnRegisterToMapOutputModeChange()

XN_C_API XnStatus XN_C_DECL xnRegisterToMapOutputModeChange ( XnNodeHandle  hInstance,
XnStateChangedHandler  handler,
void *  pCookie,
XnCallbackHandle phCallback 
)

Registers a callback function to mode changes.

Parameters
hInstance[in] A handle to the instance.
handler[in] A pointer to a function that will be called when mode changes.
pCookie[in] A user cookie that will be passed to the callback function.
phCallback[out] Optional. Will be filled with a handle to be passed to xnUnregisterFromMapOutputModeChange.
Returns
XN_STATUS_INVALID_OPERATION if this production node is not a map generator.

◆ xnSetMapOutputMode()

XN_C_API XnStatus XN_C_DECL xnSetMapOutputMode ( XnNodeHandle  hInstance,
const XnMapOutputMode pOutputMode 
)

Sets the output mode.

Parameters
hInstance[in] A handle to the instance.
pOutputMode[in] The output mode to be set.
Returns
XN_STATUS_INVALID_OPERATION if this production node is not a map generator.

◆ xnUnregisterFromMapOutputModeChange()

XN_C_API void XN_C_DECL xnUnregisterFromMapOutputModeChange ( XnNodeHandle  hInstance,
XnCallbackHandle  hCallback 
)

Unregisters a callback function which was registered using xnRegisterToMapOutputModeChange.

Parameters
hInstance[in] A handle to the instance.
hCallback[in] The handle to the callback returned from xnRegisterToMapOutputModeChange.