MStatus Class Reference
[OpenMaya - API module for common classes]

#include <MStatus.h>

List of all members.


Detailed Description

Manipulate Maya Status codes.

This class facilitates API level error handling. It encapsulates the status code and the internal MAYA error code as return by API functions. The user can query, set, print the error code along with the error description.

Examples:

affectsNode.cpp, animCubeNode.cpp, animExportUtil.cpp, animExportUtil.h, animFileExport.cpp, animFileUtils.cpp, animFileUtils.h, animImportExport.cpp, animImportExport.h, animInfoCmd.cpp, anisotropicShader.cpp, apiMeshCreator.cpp, apiMeshCreator.h, apiMeshData.cpp, apiMeshData.h, apiMeshShape.cpp, apiMeshShape.h, apiSimpleShape.cpp, apiSimpleShape.h, arcLenNode.cpp, asciiToBinary.cpp, AshliPluginMain.cpp, backfillShader.cpp, blindComplexDataCmd.cpp, blindDataMesh.cpp, blindDataMesh.h, blindDataPluginMain.cpp, blindDataShader.cpp, blindDataShader.h, blindDoubleDataCmd.cpp, blindShortDataCmd.cpp, brickShader.cpp, buildRotationNode.cpp, cellShader.cpp, cgfxAttrDef.cpp, cgfxFindImage.cpp, cgfxShaderCmd.cpp, cgfxShaderCmd.h, cgfxShaderNode.cpp, cgfxShaderNode.h, cgfxVector.cpp, cgfxVector.h, checkerShader.cpp, circleNode.cpp, cleanPerFaceAssignmentCmd.cpp, cleanPerFaceAssignmentCmd.h, cleanPerFaceAssignmentPluginMain.cpp, clearcoat.cpp, closestPointCmd.cpp, closestPointOnCurveCmd.cpp, closestPointOnCurveCmd.h, closestPointOnCurveNode.cpp, closestPointOnCurveNode.h, closestPointOnCurvePlugin.cpp, closestPointOnNurbsSurfaceCmd.cpp, closestPointOnNurbsSurfaceCmd.h, clothPaintAttrCmd.cpp, clothPaintAttrCmd.h, clusterWeightFunction.cpp, componentScaleManip.cpp, compositingShader.cpp, conditionTest.cpp, contrastShader.cpp, convertBumpCmd.cpp, convertEdgesToFacesCmd.cpp, convertVerticesToEdgesCmd.cpp, convertVerticesToFacesCmd.cpp, createClipCmd.cpp, curvedArrowsNode.cpp, customAttrManip.cpp, customImagePlane.cpp, cvColorNode.cpp, cvColorShader.cpp, cvExpandCmd.cpp, cvPosCmd.cpp, D3DResourceManager.cpp, D3DViewportRenderer.cpp, D3DViewportRenderer.h, D3DViewportRendererPlugin.cpp, dagMessageCmd.cpp, dagPoseInfoCmd.cpp, ddsFloatReader.cpp, deletedMsgCmd.cpp, depthShader.cpp, displacementShader.cpp, dynExprField.cpp, dynExprField.h, eventTest.cpp, exampleMRampAttribute.cpp, exportJointClusterDataCmd.cpp, exportSkinClusterDataCmd.cpp, fileIOMsgCmd.cpp, filteredAsciiFile.cpp, findFileTexturesCmd.cpp, findTexturesPerPolygonCmd.cpp, flameShader.cpp, flipUVCmd.cpp, flipUVCmd.h, flipUVMain.cpp, fluidInfoCmd.cpp, footPrintManip.cpp, footPrintNode.cpp, fullLoftNode.cpp, fxManagerCmd.cpp, fxManagerCmd.h, gammaShader.cpp, genericAttributeNode.cpp, geometryCacheConverter.cpp, geometryCacheFile.cpp, geometryCacheFile.h, geometrySurfaceConstraint.cpp, geometrySurfaceConstraint.h, geomShader.cpp, getAttrAffectsCmd.cpp, glExtensions.cpp, GLSLShaderNode.cpp, GLSLShaderNode.h, hairCollisionSolver.cpp, helix2Cmd.cpp, helixCmd.cpp, helixTool.cpp, helloCmd.cpp, helloWorld.cpp, helloWorldCmd.cpp, hlslPluginMain.cpp, hlslShader.cpp, hlslShader.h, hwAnisotropicShader_NV20.cpp, hwAnisotropicShader_NV20.h, hwColorPerVertexShader.cpp, hwDecalBumpShader_NV20.cpp, hwDecalBumpShader_NV20.h, hwManagedTextureShader.cpp, hwPhongShader.cpp, hwPhongShader.h, hwPhongShaderBehavior.cpp, hwPhongShaderBehavior.h, hwReflectBumpShader_NV20.cpp, hwReflectBumpShader_NV20.h, hwRefractReflectShader_NV20.cpp, hwRefractReflectShader_NV20.h, hwRenderPostEffect.cpp, hwToonShader_NV20.cpp, hwToonShader_NV20.h, hwUnlitShader.cpp, hwUnlitShader.h, iffInfoCmd.cpp, iffPixelCmd.cpp, iffPpmCmd.cpp, iffreader.cpp, iffreader.h, instanceCallbackCmd.cpp, instancerListCmd.cpp, interpShader.cpp, intersectCmd.cpp, intersectOnNurbsSurfaceCmd.cpp, intersectOnNurbsSurfaceCmd.h, jitterNode.cpp, jlcVcrDevice.cpp, lambertShader.cpp, lassoTool.cpp, latticeNoise.cpp, latticeNoise.h, latticeNoiseCmd.cpp, latticeNoiseNode.cpp, lavaShader.cpp, lepTranslator.cpp, lightShader.cpp, lineManip.cpp, lineManip.h, lineManipContainer.cpp, lineManipContainer.h, listLightLinksCmd.cpp, listPolyHolesCmd.cpp, lockEvent.cpp, marqueeTool.cpp, maTranslator.cpp, meshMapUtils.cpp, meshMapUtils.h, meshOpCmd.cpp, meshOpCmd.h, meshOpFty.h, meshOpFtyAction.cpp, meshOpMain.cpp, meshOpNode.cpp, meshOpNode.h, meshRemapCmd.cpp, meshRemapCmd.h, meshRemapTool.cpp, meshRemapTool.h, meshReorderCmd.cpp, meshReorderCmd.h, meshReorderPlugin.cpp, meshReorderTool.cpp, meshReorderTool.h, mixtureShader.cpp, motionPathCmd.cpp, motionTraceCmd.cpp, moveCurveCVsCmd.cpp, moveManip.cpp, moveNumericTool.cpp, moveTool.cpp, MTexture.cpp, multiCurveNode.cpp, narrowPolyViewer.cpp, narrowPolyViewer.h, narrowPolyViewerCmd.cpp, narrowPolyViewerCmd.h, narrowPolyViewerMain.cpp, nodeCreatedCBCmd.cpp, nodeCreatedCBCmd.h, nodeInfoCmd.cpp, nodeMessageCmd.cpp, NodeMonitor.cpp, NodeMonitor.h, noiseShader.cpp, objExport.cpp, offsetNode.cpp, OpenEXR.cpp, OpenGLViewportRenderer.cpp, OpenGLViewportRenderer.h, OpenGLViewportRendererPlugin.cpp, ownerEmitter.cpp, ownerEmitter.h, particleAttrNode.cpp, particleAttrNode.h, particleAttrNodeMain.cpp, particlePathsCmd.cpp, particleSystemInfoCmd.cpp, peltOverlapCmd.cpp, pfxInfoCmd.cpp, phongShader.cpp, pickCmd.cpp, pluginCallbacks.cpp, pluginMain.cpp, pnTrianglesNode.cpp, pnTrianglesNode.h, pointOnMeshCmd.cpp, pointOnMeshCmd.h, pointOnMeshInfoNode.cpp, pointOnMeshInfoNode.h, pointOnMeshInfoPlugin.cpp, pointOnSubdNode.cpp, pointOnSubdNode.h, polyExporter.cpp, polyExporter.h, polyMessageCmd.cpp, polyModifierCmd.cpp, polyModifierCmd.h, polyModifierFty.h, polyPrimitiveCmd.cpp, polyRawExporter.cpp, polyRawExporter.h, polyRawWriter.cpp, polyRawWriter.h, polyTrgNode.cpp, polyWriter.cpp, polyWriter.h, polyX3DExporter.cpp, polyX3DExporter.h, polyX3DWriter.cpp, polyX3DWriter.h, progressWindowCmd.cpp, quadricShape.cpp, readAndWrite.cpp, referenceQueryCmd.cpp, renderAccessNode.cpp, renderViewInteractiveRenderCmd.cpp, renderViewRenderCmd.cpp, renderViewRenderRegionCmd.cpp, rockingTransform.cpp, rockingTransform.h, rockingTransformCheck.cpp, rockingTransformCheck.h, rockingTransformCheckMain.cpp, rockingTransformMain.cpp, rotateManip.cpp, sampleCmd.cpp, sampleParticles.cpp, scanDagCmd.cpp, scanDagSyntax.cpp, ShadingConnection.cpp, shadowMatteShader.cpp, ShapeMonitor.cpp, shellNode.cpp, shiftNode.cpp, simpleEmitter.cpp, simpleEmitter.h, simpleFluidEmitter.cpp, simpleFluidEmitter.h, simpleImageFile.cpp, simpleLoftNode.cpp, simpleSolverNode.cpp, simpleSpring.cpp, simpleSpring.h, sineNode.cpp, slopeShader.cpp, slopeShaderBehavior.cpp, slopeShaderBehavior.h, slopeShaderNode.cpp, slopeShaderNode.h, solidCheckerShader.cpp, spiralAnimCurveCmd.cpp, splitUVCmd.cpp, splitUVCmd.h, splitUVFty.h, splitUVFtyAction.cpp, splitUVMain.cpp, splitUVNode.cpp, splitUVNode.h, squareScaleManip.cpp, squareScaleManip.h, squareScaleManipContext.cpp, squareScaleManipContext.h, stringFormatNode.cpp, surfaceBumpManip.cpp, surfaceCreate.cpp, surfaceCreateCmd.cpp, surfaceTwist.cpp, surfaceTwistCmd.cpp, sweptEmitter.cpp, sweptEmitter.h, swissArmyManip.cpp, testNobjectNode.cpp, testNobjectNode.h, testNucleusNode.cpp, testNucleusNode.h, threadTestCmd.cpp, threadTestWithLocksCmd.cpp, tiffFloatReader.cpp, torusField.cpp, torusField.h, transCircleNode.cpp, translateCmd.cpp, undoRedoMsgCmd.cpp, userMsgCmd.cpp, viewCallbackTest.cpp, viewCaptureCmd.cpp, volumeLightCmd.cpp, volumeShader.cpp, weightListNode.cpp, whatisCmd.cpp, XmlGeometryCache.cpp, yTwistNode.cpp, and zoomCameraCmd.cpp.


Public Types

enum   MStatusCode {
   kSuccess = 0, kFailure, kInsufficientMemory, kInvalidParameter,
   kLicenseFailure, kUnknownParameter, kNotImplemented, kNotFound,
   kEndOfFile
}
  Available Status Codes. More...

Public Member Functions

  MStatus ()
  MStatus (MStatusCode)
  MStatus (const MStatus &)
MStatus operator= (const MStatus &rhs)
bool  operator== (const MStatus &rhs) const
bool  operator== (const MStatusCode rhs) const
bool  operator!= (const MStatus &rhs) const
bool  operator!= (const MStatusCode rhs) const
bool  error () const
void  clear ()
MStatusCode  statusCode () const
MString  errorString () const
void  perror (const char *) const
void  perror (const MString &) const
void  set (bool status, unsigned char statusCode, unsigned char internalStatusCode)
  Internal use only.
void  setSuccess ()
  operator bool () const
  NO SCRIPT SUPPORT.

Friends

OPENMAYA_EXPORT std::ostream &  operator<< (std::ostream &, MStatus &)
  NO SCRIPT SUPPORT.
OPENMAYA_EXPORT bool  operator== (const MStatus::MStatusCode code, const MStatus &status)
  NO SCRIPT SUPPORT.
OPENMAYA_EXPORT bool  operator!= (const MStatus::MStatusCode code, const MStatus &status)
  NO SCRIPT SUPPORT.

Member Enumeration Documentation

Available Status Codes.

Enumerator:
kSuccess  The operation was successful.
kFailure  The operation failed.
kInsufficientMemory  The operation failed due to insufficient memory.
kInvalidParameter  An invalid parameter was provided.
kLicenseFailure  Application is not licensed for the attempted operation.
kUnknownParameter  Returned by MPxNode::compute for unrecognised plugs.
kNotImplemented  Not currently used.
kNotFound  Not currently used.
kEndOfFile  Not currently used.

Constructor & Destructor Documentation

MStatus::MStatus (  )  [inline]

The default class constructor. It initializes the internal detailed status code to kSuccess.

MStatus::MStatus ( MStatus::MStatusCode  status  ) 

The constructor that takes a MStatus::MStatusCode. Initializes the internal detailed status code to status

Parameters:
[in]  status  The initial detailed status code.

MStatus::MStatus ( const MStatus status  )  [inline]

The copy constructor of the class. Initialize a new MStatus object with the values from another MStatus object.

Parameters:
[in]  status  The target MStatus object.

Member Function Documentation

MStatus & MStatus::operator= ( const MStatus rhs  )  [inline]

The copy operator of the class.

Parameters:
[in]  rhs  The MStatus object to copy from.
Returns:
A reference to the MStatus object that has been initialized.

bool MStatus::operator== ( const MStatus rhs  )  const [inline]

The equivalence operator that takes another MStatus object.

Parameters:
[in]  rhs  A reference to the target object.
Returns:
  • true the two MStatus objects are equal.
  • false the two MStatus objects are not equal.

bool MStatus::operator== ( const MStatusCode  rhs  )  const [inline]

The equivalence operator that takes a MStatus::MStatusCode.

Parameters:
[in]  rhs  a MStatus::MStatusCode, e.g. MS::kSuccess.
Returns:
  • true the object has the given detailed status code.
  • false the object does not have the given detailed status code.

bool MStatus::operator!= ( const MStatus rhs  )  const [inline]

The not equal operator for MStatus.

Parameters:
[in]  rhs  a reference to the target object for comparison.
Returns:
  • true the two MStatus objects are not equal.
  • false the two MStatus objects are equal.

bool MStatus::operator!= ( const MStatusCode  rhs  )  const [inline]

The not equal operator that takes a MStatus::MStatusCode.

Parameters:
[in]  rhs  a MStatus::MStatusCode, e.g. MS::kSuccess.
Returns:
  • true the object does not have the given detailed status code.
  • false the object has the given detailed status code.

bool MStatus::error (  )  const [inline]

Determines whether there is an error.

Returns:
  • true an error has occured.
  • false the operation was successful
Examples:

void MStatus::clear (  )  [inline]

MStatus::MStatusCode MStatus::statusCode (  )  const [inline]

Retrieve the type of error that occurred, as specified in the MStatusCode enumeration.

Returns:
The type of error that occurred.
Examples:

MString MStatus::errorString (  )  const

This method returns the internal error message as a MString object.

Returns:
A MString object which contains the error string.
Examples:

void MStatus::perror ( const char *  preString  )  const

This method prints the error string preceded by a string supplied by the user to the standard error stream.

Parameters:
[in]  preString  A pointer to char that points to a null terminated string.
Examples:
affectsNode.cpp, animCubeNode.cpp, animImportExport.cpp, animInfoCmd.cpp, arcLenNode.cpp, asciiToBinary.cpp, AshliPluginMain.cpp, blindComplexDataCmd.cpp, blindDataPluginMain.cpp, blindDoubleDataCmd.cpp, blindShortDataCmd.cpp, buildRotationNode.cpp, cgfxShaderCmd.cpp, cgfxVector.cpp, circleNode.cpp, cleanPerFaceAssignmentPluginMain.cpp, closestPointOnCurvePlugin.cpp, closestPointOnNurbsSurfaceCmd.cpp, clothPaintAttrCmd.cpp, clusterWeightFunction.cpp, conditionTest.cpp, convertBumpCmd.cpp, convertEdgesToFacesCmd.cpp, convertVerticesToEdgesCmd.cpp, convertVerticesToFacesCmd.cpp, createClipCmd.cpp, curvedArrowsNode.cpp, customAttrManip.cpp, customImagePlane.cpp, cvColorNode.cpp, cvPosCmd.cpp, D3DResourceManager.cpp, D3DViewportRenderer.cpp, D3DViewportRendererPlugin.cpp, dagPoseInfoCmd.cpp, deletedMsgCmd.cpp, dynExprField.cpp, eventTest.cpp, exampleMRampAttribute.cpp, exportJointClusterDataCmd.cpp, exportSkinClusterDataCmd.cpp, fileIOMsgCmd.cpp, findFileTexturesCmd.cpp, fluidInfoCmd.cpp, footPrintManip.cpp, footPrintNode.cpp, fullLoftNode.cpp, genericAttributeNode.cpp, geometryCacheConverter.cpp, geometrySurfaceConstraint.cpp, getAttrAffectsCmd.cpp, helix2Cmd.cpp, helixTool.cpp, helloWorld.cpp, hwAnisotropicShader_NV20.cpp, hwDecalBumpShader_NV20.cpp, hwPhongShader.cpp, hwReflectBumpShader_NV20.cpp, hwRefractReflectShader_NV20.cpp, hwToonShader_NV20.cpp, hwUnlitShader.cpp, iffInfoCmd.cpp, iffPixelCmd.cpp, iffPpmCmd.cpp, intersectOnNurbsSurfaceCmd.cpp, jitterNode.cpp, jlcVcrDevice.cpp, lassoTool.cpp, latticeNoise.cpp, latticeNoiseNode.cpp, lepTranslator.cpp, lineManip.cpp, lineManipContainer.cpp, lockEvent.cpp, meshOpMain.cpp, meshOpNode.cpp, meshReorderPlugin.cpp, motionPathCmd.cpp, motionTraceCmd.cpp, moveCurveCVsCmd.cpp, moveNumericTool.cpp, moveTool.cpp, narrowPolyViewer.cpp, narrowPolyViewerMain.cpp, nodeCreatedCBCmd.cpp, nodeInfoCmd.cpp, OpenGLViewportRenderer.cpp, OpenGLViewportRendererPlugin.cpp, ownerEmitter.cpp, particleAttrNodeMain.cpp, particlePathsCmd.cpp, particleSystemInfoCmd.cpp, peltOverlapCmd.cpp, pfxInfoCmd.cpp, pickCmd.cpp, pnTrianglesNode.cpp, pointOnMeshInfoPlugin.cpp, pointOnSubdNode.cpp, polyPrimitiveCmd.cpp, polyRawExporter.cpp, polyX3DExporter.cpp, progressWindowCmd.cpp, readAndWrite.cpp, referenceQueryCmd.cpp, renderViewInteractiveRenderCmd.cpp, renderViewRenderCmd.cpp, renderViewRenderRegionCmd.cpp, rockingTransformCheckMain.cpp, rockingTransformMain.cpp, sampleCmd.cpp, sampleParticles.cpp, scanDagCmd.cpp, scanDagSyntax.cpp, shellNode.cpp, simpleEmitter.cpp, simpleFluidEmitter.cpp, simpleLoftNode.cpp, simpleSolverNode.cpp, simpleSpring.cpp, sineNode.cpp, spiralAnimCurveCmd.cpp, splitUVMain.cpp, splitUVNode.cpp, squareScaleManip.cpp, surfaceCreate.cpp, surfaceCreateCmd.cpp, surfaceTwist.cpp, surfaceTwistCmd.cpp, sweptEmitter.cpp, swissArmyManip.cpp, testNobjectNode.cpp, testNucleusNode.cpp, torusField.cpp, transCircleNode.cpp, translateCmd.cpp, undoRedoMsgCmd.cpp, userMsgCmd.cpp, viewCallbackTest.cpp, and zoomCameraCmd.cpp.

void MStatus::perror ( const MString preString  )  const

The second version of the perror() method. This method takes a reference to a MString as the parameter. It prints the error string preceded by the string supplied by the user to the standard error stream.

Parameters:
[in]  preString  a reference to a MString object that contains the prefix string.

void MStatus::set ( bool  status,
unsigned char  statusCode,
unsigned char  internalStatusCode  
) [inline]

Internal use only.

The method is called interally by Maya to construct MStatus objects. It should not be called from plugins.

Parameters:
[in]  status  true or false
[in]  statusCode  an element of MStatusCode
[in]  internalStatusCode  an internal Maya error code
Examples:

void MStatus::setSuccess (  )  [inline]

The method is called interally by Maya to set the status as success. It should not be called from plugins.

MStatus::operator bool (  )  const [inline]

NO SCRIPT SUPPORT.

The conversion operator that converts a MStatus object to bool. The result it returns will be true if the MStatus does not contain an error, and false if it does.


Friends And Related Function Documentation

OPENMAYA_EXPORT std::ostream& operator<< ( std::ostream &  out,
MStatus status  
) [friend]

NO SCRIPT SUPPORT.

The output operator of the class. This method outputs the detailed status code as well as the internal error description. The format of the output is "(errNumber): errorDescriptiveText".

Parameters:
[in]  out  The ostream object that the output should be directed to.
[in]  status  The MStatus object.
Returns:
A reference to the ostream object.

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