API for 3DCONFIG

Jul 27, 2012

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I know I can use the command line version of 3DCONFIG to change graphics settings using e.g. SendStringToExecute(). However, I'm wondering if it's also possible through some direct API.

Solution

Yes, you can access these settings through the AcGsConfig class.

This ARX sample command toggles the Hardware Acceleration setting:

static void ToggleHWAcceleration(void)
{
  AcGsConfig * gsConf = 
    acgsGetGsManager()->getGSClassFactory()->getConfig();
  bool b = gsConf->isFeatureEnabled(AcGsConfig::kHwAcceleration);
  gsConf->setFeatureEnabled(AcGsConfig::kHwAcceleration, !b);
  gsConf->saveSettings();
}

The same in .NET:

[CommandMethod("ToggleHWAcceleration")]
public void ToggleHWAcceleration()
{
  using (Autodesk.AutoCAD.GraphicsSystem.Configuration config =
    new Autodesk.AutoCAD.GraphicsSystem.Configuration())
  {
    bool b = config.IsFeatureEnabled(
      Autodesk.AutoCAD.GraphicsSystem.
      HardwareFeature.HardwareAcceleration);
    config.SetFeatureEnabled(
      Autodesk.AutoCAD.GraphicsSystem.
      HardwareFeature.HardwareAcceleration, !b);
    config.SaveSettings();
  }
}

Comments

3 responses to “API for 3DCONFIG”

BJHuffine

March 18, 2015

In AutoCAD 2015, there’s evidently been a graphics change and this construct has changed. To be honest, what is the UniqueString object and how is it typically used? And, how should this look with the new construct?

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Balaji

March 18, 2015

Hi Jason,
This should work in AutoCAD 2015 :
AcGsKernelDescriptor descriptor;
descriptor.addRequirement(AcGsKernelDescriptor::k3DDrawing);
AcGsGraphicsKernel *pGraphicsKernel = AcGsManager::acquireGraphicsKernel(descriptor);
AcGsConfig * gsConf = pGraphicsKernel->getConfig();
gsConf->setHardwareAcceleration(false); // or true
About UniqueString, it helps do a quick string comparison as it involves direct pointer comparison rather than a character comparison. It works just like enums and you would need to get the pointer to a AcUniqueString.
For example, here is a code snippet to get the uniquestring :
AcArray *effectLists = gsConf->getEffectList(AcGsConfig::EffectListType::kEL_Current);
for (int i = 0 ; i < effectLists->length(); ++ i)
{
const AcGsConfig::EffectStatus & effectStatus = effectLists->at(i);
acutPrintf(effectStatus.effectName);
const AcUniqueString *pUniqueString = effectStatus.pUniqueString;
}
Regards,
Balaji

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Balaji

March 24, 2015

Just an update to the above code snippet :
It is also required to release the graphics kernel using
AcGsManager::releaseGraphicsKernel(pGraphicsKernel);
Cheers,
Balaji

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API for 3DCONFIG

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