MQL5参考标准程序库3D图形CCanvas3DDXDispatcher AmbientColorGetAmbientColorSetAttachCreateDestroyDXContextDXDispatcherInputSceneLightColorGetLightColorSetLightDirectionGetLightDirectionSetObjectAddProjectionMatrixGetProjectionMatrixSetRenderRenderBeginRenderEndViewMatrixGetViewMatrixSetViewPositionSetViewRotationSetViewTargetSetViewUpDirectionSet DXDispatcher 获取资源分配器句柄。 CDXDispatcher* DXDispatcher() 返回值 资源分配器句柄。 DXContext InputScene