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System Options - Performance

This topic contains two tables. The information in the table:

  • appearing immediately after the screen capture of the System Options - Performance dialog corresponds to the settings on that dialog.

  • titled Obsolete Enumerators contains enumerators that previously appeared on the System Options - Performance dialog, but are now obsolete and no longer appear on that dialog.


Get/Set Methods

Return Value



Verification on rebuild


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swPerformanceVerifyOnRebuild, <OnFlag>)

Boolean value

Controls the level of error checking when you create or modify features. For most applications, the default setting (cleared) is adequate and results in a faster rebuild of the model

Ignores self-intersection check for some sheet metal features


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swPerformanceSheetMetalIgnoreSelfIntersect, <OnFlag>)

Boolean value

Specifies whether to suppress warning messages for certain sheet metal parts; for example, when flanges share a common edge and the part flattens correctly but displays a warning message

Transparency - High quality for normal view mode


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swUseAlphaTransparency, <OnFlag>)

Boolean value

Specifies whether to change transparency quality from high to low when part or assembly is moving

Transparency - High quality for dynamic view mode


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swTransparencyHighQualityDynamic, <OnFlag>)

Boolean value

Specifies whether high-quality transparency is retained while moving or rotating model with pan or rotate tools

Curvature generation


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swPerformanceAlwaysGenerateCurvature, <OnFlag>)

Boolean value:

  • True = Always (for every shaded model)

  • False = Only on demand

Specifies whether to always display curvature for shaded models

Level of detail


ISldWorks::SetUserPreferenceIntegerValue(swUserPreferenceIntegerValue_e.swLevelOfDetail, <Value>)

Integer value ranging from 0 to 20

Target frame rates ranging from 0 (off) to 20 (maximum level of detail removed); for example, if set at 20, then try and get 20FPS on spin dynamics by dropping detail until rate is achieved

Assemblies - Automatically load components lightweight


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swAutoLoadPartsLightweight, <OnFlag>)

Boolean value

Specifies whether to automatically load components in assembly as lightweight; see also swOpenDocOptions_OverrideDefaultLoadLightweight and swOpenDocOptions_LoadLightweight in swOpenDocOptions_e.

Assemblies - Always resolve sub-assemblies


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swPerformanceAlwaysResolveSubassemblies, <OnFlag>)

Boolean value

Specifies whether to always resolve subassemblies when an assembly opens lightweight

Assemblies - Check out-of-date lightweight components


ISldWorks::SetUserPreferenceIntegerValue(swUserPreferenceIntegerValue_e.swCheckForOutOfDateLightweightComponents, swCheckOutOfDate_e.<Value>)

See swCheckOutOfDate_e for valid options


Assemblies - Resolve lightweight components


ISldWorks::SetUserPreferenceIntegerValue(swUserPreferenceIntegerValue_e.swResolveLightweight, swPromptAlwaysNever_e.<Value>)

Boolean value:

  • 0 = Prompt

  • 1 = Always


Assemblies - Rebuild assembly on load:


ISldWorks::SetUserPreferenceIntegerValue(swUserPreferenceIntegerValue_e.swPerformanceAssemRebuildOnLoad, swPromptAlwaysNever_e.<Value>)

See swPromptAlwaysNever_e for valid options


Assemblies - Mate animation speed


ISldWorks::SetUserPreferenceDoubleValue(swUserPreferenceDoubeleValue_e.swMateAnimationSpeed, <Value>)  

Double value:

  • 0 = off

  • >0 - 3 animation speed in seconds

Specifies speed of animation for mates

Update mass properties while saving document


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swUpdateMassPropsDuringSave, <OnFlag>)

Boolean value

Specifies whether to update mass properties information when saving document

Use shaded preview


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swUseShadedPreview, <OnFlag>)

Boolean value

Specifies whether to use shaded preview

Use Software OpenGL



Read-only Boolean value

Specifies whether graphics adapter hardware acceleration is disabled and graphics rendering using only software is enabled

No preview during open (faster)


ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swPerformancePreviewDuringOpen, <OnFlag>)

Boolean value:

  • True = Cleared

  • False = Selected

Specifies whether to preview the model while opening it


Obsolete Enumerators




Obsolete; specified whether to remove small components and faces (both interior and exterior) from graphics area when zooming, panning, or rotating model to improve system performance




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