NVAPI Reference Documentation
NVIDIA
Release 550
Thu Feb 8 2024

Macros | Typedefs | Enumerations
NvAPI Status Values

Macros

#define NVAPI_API_NOT_INTIALIZED   NVAPI_API_NOT_INITIALIZED
 

Typedefs

typedef enum _NvAPI_Status NvAPI_Status
 

Enumerations

enum  _NvAPI_Status {
  NVAPI_OK = 0 , NVAPI_ERROR = -1 , NVAPI_LIBRARY_NOT_FOUND = -2 , NVAPI_NO_IMPLEMENTATION = -3 ,
  NVAPI_API_NOT_INITIALIZED = -4 , NVAPI_INVALID_ARGUMENT = -5 , NVAPI_NVIDIA_DEVICE_NOT_FOUND = -6 , NVAPI_END_ENUMERATION = -7 ,
  NVAPI_INVALID_HANDLE = -8 , NVAPI_INCOMPATIBLE_STRUCT_VERSION = -9 , NVAPI_HANDLE_INVALIDATED = -10 , NVAPI_OPENGL_CONTEXT_NOT_CURRENT = -11 ,
  NVAPI_INVALID_POINTER = -14 , NVAPI_NO_GL_EXPERT = -12 , NVAPI_INSTRUMENTATION_DISABLED = -13 , NVAPI_NO_GL_NSIGHT = -15 ,
  NVAPI_EXPECTED_LOGICAL_GPU_HANDLE = -100 , NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE = -101 , NVAPI_EXPECTED_DISPLAY_HANDLE = -102 , NVAPI_INVALID_COMBINATION = -103 ,
  NVAPI_NOT_SUPPORTED = -104 , NVAPI_PORTID_NOT_FOUND = -105 , NVAPI_EXPECTED_UNATTACHED_DISPLAY_HANDLE = -106 , NVAPI_INVALID_PERF_LEVEL = -107 ,
  NVAPI_DEVICE_BUSY = -108 , NVAPI_NV_PERSIST_FILE_NOT_FOUND = -109 , NVAPI_PERSIST_DATA_NOT_FOUND = -110 , NVAPI_EXPECTED_TV_DISPLAY = -111 ,
  NVAPI_EXPECTED_TV_DISPLAY_ON_DCONNECTOR = -112 , NVAPI_NO_ACTIVE_SLI_TOPOLOGY = -113 , NVAPI_SLI_RENDERING_MODE_NOTALLOWED = -114 , NVAPI_EXPECTED_DIGITAL_FLAT_PANEL = -115 ,
  NVAPI_ARGUMENT_EXCEED_MAX_SIZE = -116 , NVAPI_DEVICE_SWITCHING_NOT_ALLOWED = -117 , NVAPI_TESTING_CLOCKS_NOT_SUPPORTED = -118 , NVAPI_UNKNOWN_UNDERSCAN_CONFIG = -119 ,
  NVAPI_TIMEOUT_RECONFIGURING_GPU_TOPO = -120 , NVAPI_DATA_NOT_FOUND = -121 , NVAPI_EXPECTED_ANALOG_DISPLAY = -122 , NVAPI_NO_VIDLINK = -123 ,
  NVAPI_REQUIRES_REBOOT = -124 , NVAPI_INVALID_HYBRID_MODE = -125 , NVAPI_MIXED_TARGET_TYPES = -126 , NVAPI_SYSWOW64_NOT_SUPPORTED = -127 ,
  NVAPI_IMPLICIT_SET_GPU_TOPOLOGY_CHANGE_NOT_ALLOWED = -128 , NVAPI_REQUEST_USER_TO_CLOSE_NON_MIGRATABLE_APPS = -129 , NVAPI_OUT_OF_MEMORY = -130 , NVAPI_WAS_STILL_DRAWING = -131 ,
  NVAPI_FILE_NOT_FOUND = -132 , NVAPI_TOO_MANY_UNIQUE_STATE_OBJECTS = -133 , NVAPI_INVALID_CALL = -134 , NVAPI_D3D10_1_LIBRARY_NOT_FOUND = -135 ,
  NVAPI_FUNCTION_NOT_FOUND = -136 , NVAPI_INVALID_USER_PRIVILEGE = -137 , NVAPI_EXPECTED_NON_PRIMARY_DISPLAY_HANDLE = -138 , NVAPI_EXPECTED_COMPUTE_GPU_HANDLE = -139 ,
  NVAPI_STEREO_NOT_INITIALIZED = -140 , NVAPI_STEREO_REGISTRY_ACCESS_FAILED = -141 , NVAPI_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED = -142 , NVAPI_STEREO_REGISTRY_VALUE_NOT_SUPPORTED = -143 ,
  NVAPI_STEREO_NOT_ENABLED = -144 , NVAPI_STEREO_NOT_TURNED_ON = -145 , NVAPI_STEREO_INVALID_DEVICE_INTERFACE = -146 , NVAPI_STEREO_PARAMETER_OUT_OF_RANGE = -147 ,
  NVAPI_STEREO_FRUSTUM_ADJUST_MODE_NOT_SUPPORTED = -148 , NVAPI_TOPO_NOT_POSSIBLE = -149 , NVAPI_MODE_CHANGE_FAILED = -150 , NVAPI_D3D11_LIBRARY_NOT_FOUND = -151 ,
  NVAPI_INVALID_ADDRESS = -152 , NVAPI_STRING_TOO_SMALL = -153 , NVAPI_MATCHING_DEVICE_NOT_FOUND = -154 , NVAPI_DRIVER_RUNNING = -155 ,
  NVAPI_DRIVER_NOTRUNNING = -156 , NVAPI_ERROR_DRIVER_RELOAD_REQUIRED = -157 , NVAPI_SET_NOT_ALLOWED = -158 , NVAPI_ADVANCED_DISPLAY_TOPOLOGY_REQUIRED = -159 ,
  NVAPI_SETTING_NOT_FOUND = -160 , NVAPI_SETTING_SIZE_TOO_LARGE = -161 , NVAPI_TOO_MANY_SETTINGS_IN_PROFILE = -162 , NVAPI_PROFILE_NOT_FOUND = -163 ,
  NVAPI_PROFILE_NAME_IN_USE = -164 , NVAPI_PROFILE_NAME_EMPTY = -165 , NVAPI_EXECUTABLE_NOT_FOUND = -166 , NVAPI_EXECUTABLE_ALREADY_IN_USE = -167 ,
  NVAPI_DATATYPE_MISMATCH = -168 , NVAPI_PROFILE_REMOVED = -169 , NVAPI_UNREGISTERED_RESOURCE = -170 , NVAPI_ID_OUT_OF_RANGE = -171 ,
  NVAPI_DISPLAYCONFIG_VALIDATION_FAILED = -172 , NVAPI_DPMST_CHANGED = -173 , NVAPI_INSUFFICIENT_BUFFER = -174 , NVAPI_ACCESS_DENIED = -175 ,
  NVAPI_MOSAIC_NOT_ACTIVE = -176 , NVAPI_SHARE_RESOURCE_RELOCATED = -177 , NVAPI_REQUEST_USER_TO_DISABLE_DWM = -178 , NVAPI_D3D_DEVICE_LOST = -179 ,
  NVAPI_INVALID_CONFIGURATION = -180 , NVAPI_STEREO_HANDSHAKE_NOT_DONE = -181 , NVAPI_EXECUTABLE_PATH_IS_AMBIGUOUS = -182 , NVAPI_DEFAULT_STEREO_PROFILE_IS_NOT_DEFINED = -183 ,
  NVAPI_DEFAULT_STEREO_PROFILE_DOES_NOT_EXIST = -184 , NVAPI_CLUSTER_ALREADY_EXISTS = -185 , NVAPI_DPMST_DISPLAY_ID_EXPECTED = -186 , NVAPI_INVALID_DISPLAY_ID = -187 ,
  NVAPI_STREAM_IS_OUT_OF_SYNC = -188 , NVAPI_INCOMPATIBLE_AUDIO_DRIVER = -189 , NVAPI_VALUE_ALREADY_SET = -190 , NVAPI_TIMEOUT = -191 ,
  NVAPI_GPU_WORKSTATION_FEATURE_INCOMPLETE = -192 , NVAPI_STEREO_INIT_ACTIVATION_NOT_DONE = -193 , NVAPI_SYNC_NOT_ACTIVE = -194 , NVAPI_SYNC_MASTER_NOT_FOUND = -195 ,
  NVAPI_INVALID_SYNC_TOPOLOGY = -196 , NVAPI_ECID_SIGN_ALGO_UNSUPPORTED = -197 , NVAPI_ECID_KEY_VERIFICATION_FAILED = -198 , NVAPI_FIRMWARE_OUT_OF_DATE = -199 ,
  NVAPI_FIRMWARE_REVISION_NOT_SUPPORTED = -200 , NVAPI_LICENSE_CALLER_AUTHENTICATION_FAILED = -201 , NVAPI_D3D_DEVICE_NOT_REGISTERED = -202 , NVAPI_RESOURCE_NOT_ACQUIRED = -203 ,
  NVAPI_TIMING_NOT_SUPPORTED = -204 , NVAPI_HDCP_ENCRYPTION_FAILED = -205 , NVAPI_PCLK_LIMITATION_FAILED = -206 , NVAPI_NO_CONNECTOR_FOUND = -207 ,
  NVAPI_HDCP_DISABLED = -208 , NVAPI_API_IN_USE = -209 , NVAPI_NVIDIA_DISPLAY_NOT_FOUND = -210 , NVAPI_PRIV_SEC_VIOLATION = -211 ,
  NVAPI_INCORRECT_VENDOR = -212 , NVAPI_DISPLAY_IN_USE = -213 , NVAPI_UNSUPPORTED_CONFIG_NON_HDCP_HMD = -214 , NVAPI_MAX_DISPLAY_LIMIT_REACHED = -215 ,
  NVAPI_INVALID_DIRECT_MODE_DISPLAY = -216 , NVAPI_GPU_IN_DEBUG_MODE = -217 , NVAPI_D3D_CONTEXT_NOT_FOUND = -218 , NVAPI_STEREO_VERSION_MISMATCH = -219 ,
  NVAPI_GPU_NOT_POWERED = -220 , NVAPI_ERROR_DRIVER_RELOAD_IN_PROGRESS = -221 , NVAPI_WAIT_FOR_HW_RESOURCE = -222 , NVAPI_REQUIRE_FURTHER_HDCP_ACTION = -223 ,
  NVAPI_DISPLAY_MUX_TRANSITION_FAILED = -224 , NVAPI_INVALID_DSC_VERSION = -225 , NVAPI_INVALID_DSC_SLICECOUNT = -226 , NVAPI_INVALID_DSC_OUTPUT_BPP = -227 ,
  NVAPI_FAILED_TO_LOAD_FROM_DRIVER_STORE = -228 , NVAPI_NO_VULKAN = -229 , NVAPI_REQUEST_PENDING = -230 , NVAPI_RESOURCE_IN_USE = -231 ,
  NVAPI_INVALID_IMAGE = -232 , NVAPI_INVALID_PTX = -233 , NVAPI_NVLINK_UNCORRECTABLE = -234 , NVAPI_JIT_COMPILER_NOT_FOUND = -235 ,
  NVAPI_INVALID_SOURCE = -236 , NVAPI_ILLEGAL_INSTRUCTION = -237 , NVAPI_INVALID_PC = -238 , NVAPI_LAUNCH_FAILED = -239 ,
  NVAPI_NOT_PERMITTED = -240 , NVAPI_CALLBACK_ALREADY_REGISTERED = -241 , NVAPI_CALLBACK_NOT_FOUND = -242 , NVAPI_INVALID_OUTPUT_WIRE_FORMAT = -243
}
 

Detailed Description

All functions return an NvAPI_Status value. For example,

Macro Definition Documentation

◆ NVAPI_API_NOT_INTIALIZED

#define NVAPI_API_NOT_INTIALIZED   NVAPI_API_NOT_INITIALIZED

Fix typo in error code

Typedef Documentation

◆ NvAPI_Status

NvAPI Status Values All NvAPI functions return one of these codes. <>

Enumeration Type Documentation

◆ _NvAPI_Status

NvAPI Status Values All NvAPI functions return one of these codes. <>

Enumerator
NVAPI_OK 

Success. Request is completed.

NVAPI_ERROR 

Generic error.

NVAPI_LIBRARY_NOT_FOUND 

NVAPI support library cannot be loaded.

NVAPI_NO_IMPLEMENTATION 

not implemented in current driver installation

NVAPI_API_NOT_INITIALIZED 

NvAPI_Initialize has not been called (successfully)

NVAPI_INVALID_ARGUMENT 

The argument/parameter value is not valid or NULL.

NVAPI_NVIDIA_DEVICE_NOT_FOUND 

No NVIDIA display driver, or NVIDIA GPU driving a display, was found.

NVAPI_END_ENUMERATION 

No more items to enumerate.

NVAPI_INVALID_HANDLE 

Invalid handle.

NVAPI_INCOMPATIBLE_STRUCT_VERSION 

An argument's structure version is not supported.

NVAPI_HANDLE_INVALIDATED 

The handle is no longer valid (likely due to GPU or display re-configuration)

NVAPI_OPENGL_CONTEXT_NOT_CURRENT 

No NVIDIA OpenGL context is current (but needs to be)

NVAPI_INVALID_POINTER 

An invalid pointer, usually NULL, was passed as a parameter.

NVAPI_NO_GL_EXPERT 

OpenGL Expert is not supported by the current drivers.

NVAPI_INSTRUMENTATION_DISABLED 

OpenGL Expert is supported, but driver instrumentation is currently disabled.

NVAPI_NO_GL_NSIGHT 

OpenGL does not support Nsight.

NVAPI_EXPECTED_LOGICAL_GPU_HANDLE 

Expected a logical GPU handle for one or more parameters.

NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE 

Expected a physical GPU handle for one or more parameters.

NVAPI_EXPECTED_DISPLAY_HANDLE 

Expected an NV display handle for one or more parameters.

NVAPI_INVALID_COMBINATION 

The combination of parameters is not valid.

NVAPI_NOT_SUPPORTED 

Requested feature is not supported in the selected GPU.

NVAPI_PORTID_NOT_FOUND 

No port ID was found for the I2C transaction.

NVAPI_EXPECTED_UNATTACHED_DISPLAY_HANDLE 

Expected an unattached display handle as one of the input parameters.

NVAPI_INVALID_PERF_LEVEL 

Invalid perf level.

NVAPI_DEVICE_BUSY 

Device is busy; request not fulfilled.

NVAPI_NV_PERSIST_FILE_NOT_FOUND 

NV persist file is not found.

NVAPI_PERSIST_DATA_NOT_FOUND 

NV persist data is not found.

NVAPI_EXPECTED_TV_DISPLAY 

Expected a TV output display.

NVAPI_EXPECTED_TV_DISPLAY_ON_DCONNECTOR 

Expected a TV output on the D Connector - HDTV_EIAJ4120.

NVAPI_NO_ACTIVE_SLI_TOPOLOGY 

SLI is not active on this device.

NVAPI_SLI_RENDERING_MODE_NOTALLOWED 

Setup of SLI rendering mode is not possible right now.

NVAPI_EXPECTED_DIGITAL_FLAT_PANEL 

Expected a digital flat panel.

NVAPI_ARGUMENT_EXCEED_MAX_SIZE 

Argument exceeds the expected size.

NVAPI_DEVICE_SWITCHING_NOT_ALLOWED 

Inhibit is ON due to one of the flags in NV_GPU_DISPLAY_CHANGE_INHIBIT or SLI active.

NVAPI_TESTING_CLOCKS_NOT_SUPPORTED 

Testing of clocks is not supported.

NVAPI_UNKNOWN_UNDERSCAN_CONFIG 

The specified underscan config is from an unknown source (e.g. INF)

NVAPI_TIMEOUT_RECONFIGURING_GPU_TOPO 

Timeout while reconfiguring GPUs.

NVAPI_DATA_NOT_FOUND 

Requested data was not found.

NVAPI_EXPECTED_ANALOG_DISPLAY 

Expected an analog display.

NVAPI_NO_VIDLINK 

No SLI video bridge is present.

NVAPI_REQUIRES_REBOOT 

NVAPI requires a reboot for the settings to take effect.

NVAPI_INVALID_HYBRID_MODE 

The function is not supported with the current Hybrid mode.

NVAPI_MIXED_TARGET_TYPES 

The target types are not all the same.

NVAPI_SYSWOW64_NOT_SUPPORTED 

The function is not supported from 32-bit on a 64-bit system.

NVAPI_IMPLICIT_SET_GPU_TOPOLOGY_CHANGE_NOT_ALLOWED 

There is no implicit GPU topology active. Use NVAPI_SetHybridMode to change topology.

NVAPI_REQUEST_USER_TO_CLOSE_NON_MIGRATABLE_APPS 

Prompt the user to close all non-migratable applications.

NVAPI_OUT_OF_MEMORY 

Could not allocate sufficient memory to complete the call.

NVAPI_WAS_STILL_DRAWING 

The previous operation that is transferring information to or from this surface is incomplete.

NVAPI_FILE_NOT_FOUND 

The file was not found.

NVAPI_TOO_MANY_UNIQUE_STATE_OBJECTS 

There are too many unique instances of a particular type of state object.

NVAPI_INVALID_CALL 

The method call is invalid. For example, a method's parameter may not be a valid pointer.

NVAPI_D3D10_1_LIBRARY_NOT_FOUND 

d3d10_1.dll cannot be loaded.

NVAPI_FUNCTION_NOT_FOUND 

Couldn't find the function in the loaded DLL.

NVAPI_INVALID_USER_PRIVILEGE 

The application can be elevated to a higher permission level by selecting "Run as Administrator".

The application will require Administrator privileges to access this API.

NVAPI_EXPECTED_NON_PRIMARY_DISPLAY_HANDLE 

The handle corresponds to GDIPrimary.

NVAPI_EXPECTED_COMPUTE_GPU_HANDLE 

Setting Physx GPU requires that the GPU is compute-capable.

NVAPI_STEREO_NOT_INITIALIZED 

The Stereo part of NVAPI failed to initialize completely. Check if the stereo driver is installed.

NVAPI_STEREO_REGISTRY_ACCESS_FAILED 

Access to stereo-related registry keys or values has failed.

NVAPI_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED 

The given registry profile type is not supported.

NVAPI_STEREO_REGISTRY_VALUE_NOT_SUPPORTED 

The given registry value is not supported.

NVAPI_STEREO_NOT_ENABLED 

Stereo is not enabled and the function needed it to execute completely.

NVAPI_STEREO_NOT_TURNED_ON 

Stereo is not turned on and the function needed it to execute completely.

NVAPI_STEREO_INVALID_DEVICE_INTERFACE 

Invalid device interface.

NVAPI_STEREO_PARAMETER_OUT_OF_RANGE 

Separation percentage or JPEG image capture quality is out of [0-100] range.

NVAPI_STEREO_FRUSTUM_ADJUST_MODE_NOT_SUPPORTED 

The given frustum adjust mode is not supported.

NVAPI_TOPO_NOT_POSSIBLE 

The mosaic topology is not possible given the current state of the hardware.

NVAPI_MODE_CHANGE_FAILED 

An attempt to do a display resolution mode change has failed.

NVAPI_D3D11_LIBRARY_NOT_FOUND 

d3d11.dll/d3d11_beta.dll cannot be loaded.

NVAPI_INVALID_ADDRESS 

Address is outside of valid range.

NVAPI_STRING_TOO_SMALL 

The pre-allocated string is too small to hold the result.

NVAPI_MATCHING_DEVICE_NOT_FOUND 

The input does not match any of the available devices.

NVAPI_DRIVER_RUNNING 

Driver is running.

NVAPI_DRIVER_NOTRUNNING 

Driver is not running.

NVAPI_ERROR_DRIVER_RELOAD_REQUIRED 

A driver reload is required to apply these settings.

NVAPI_SET_NOT_ALLOWED 

Intended setting is not allowed.

NVAPI_ADVANCED_DISPLAY_TOPOLOGY_REQUIRED 

Information can't be returned due to "advanced display topology".

NVAPI_SETTING_NOT_FOUND 

Setting is not found.

NVAPI_SETTING_SIZE_TOO_LARGE 

Setting size is too large.

NVAPI_TOO_MANY_SETTINGS_IN_PROFILE 

There are too many settings for a profile.

NVAPI_PROFILE_NOT_FOUND 

Profile is not found.

NVAPI_PROFILE_NAME_IN_USE 

Profile name is duplicated.

NVAPI_PROFILE_NAME_EMPTY 

Profile name is empty.

NVAPI_EXECUTABLE_NOT_FOUND 

Application not found in the Profile.

NVAPI_EXECUTABLE_ALREADY_IN_USE 

Application already exists in the other profile.

NVAPI_DATATYPE_MISMATCH 

Data Type mismatch.

NVAPI_PROFILE_REMOVED 

The profile passed as parameter has been removed and is no longer valid.

NVAPI_UNREGISTERED_RESOURCE 

An unregistered resource was passed as a parameter.

NVAPI_ID_OUT_OF_RANGE 

The DisplayId corresponds to a display which is not within the normal outputId range.

NVAPI_DISPLAYCONFIG_VALIDATION_FAILED 

Display topology is not valid so the driver cannot do a mode set on this configuration.

NVAPI_DPMST_CHANGED 

Display Port Multi-Stream topology has been changed.

NVAPI_INSUFFICIENT_BUFFER 

Input buffer is insufficient to hold the contents.

NVAPI_ACCESS_DENIED 

No access to the caller.

NVAPI_MOSAIC_NOT_ACTIVE 

The requested action cannot be performed without Mosaic being enabled.

NVAPI_SHARE_RESOURCE_RELOCATED 

The surface is relocated away from video memory.

NVAPI_REQUEST_USER_TO_DISABLE_DWM 

The user should disable DWM before calling NvAPI.

NVAPI_D3D_DEVICE_LOST 

D3D device status is D3DERR_DEVICELOST or D3DERR_DEVICENOTRESET - the user has to reset the device.

NVAPI_INVALID_CONFIGURATION 

The requested action cannot be performed in the current state.

NVAPI_STEREO_HANDSHAKE_NOT_DONE 

Call failed as stereo handshake not completed.

NVAPI_EXECUTABLE_PATH_IS_AMBIGUOUS 

The path provided was too short to determine the correct NVDRS_APPLICATION.

NVAPI_DEFAULT_STEREO_PROFILE_IS_NOT_DEFINED 

Default stereo profile is not currently defined.

NVAPI_DEFAULT_STEREO_PROFILE_DOES_NOT_EXIST 

Default stereo profile does not exist.

NVAPI_CLUSTER_ALREADY_EXISTS 

A cluster is already defined with the given configuration.

NVAPI_DPMST_DISPLAY_ID_EXPECTED 

The input display id is not that of a multi stream enabled connector or a display device in a multi stream topology.

NVAPI_INVALID_DISPLAY_ID 

The input display id is not valid or the monitor associated to it does not support the current operation.

NVAPI_STREAM_IS_OUT_OF_SYNC 

While playing secure audio stream, stream goes out of sync.

NVAPI_INCOMPATIBLE_AUDIO_DRIVER 

Older audio driver version than required.

NVAPI_VALUE_ALREADY_SET 

Value already set, setting again not allowed.

NVAPI_TIMEOUT 

Requested operation timed out.

NVAPI_GPU_WORKSTATION_FEATURE_INCOMPLETE 

The requested workstation feature set has incomplete driver internal allocation resources.

NVAPI_STEREO_INIT_ACTIVATION_NOT_DONE 

Call failed because InitActivation was not called.

NVAPI_SYNC_NOT_ACTIVE 

The requested action cannot be performed without Sync being enabled.

NVAPI_SYNC_MASTER_NOT_FOUND 

The requested action cannot be performed without Sync Master being enabled.

NVAPI_INVALID_SYNC_TOPOLOGY 

Invalid displays passed in the NV_GSYNC_DISPLAY pointer.

NVAPI_ECID_SIGN_ALGO_UNSUPPORTED 

The specified signing algorithm is not supported. Either an incorrect value was entered or the current installed driver/hardware does not support the input value.

NVAPI_ECID_KEY_VERIFICATION_FAILED 

The encrypted public key verification has failed.

NVAPI_FIRMWARE_OUT_OF_DATE 

The device's firmware is out of date.

NVAPI_FIRMWARE_REVISION_NOT_SUPPORTED 

The device's firmware is not supported.

NVAPI_LICENSE_CALLER_AUTHENTICATION_FAILED 

The caller is not authorized to modify the License.

NVAPI_D3D_DEVICE_NOT_REGISTERED 

The user tried to use a deferred context without registering the device first

NVAPI_RESOURCE_NOT_ACQUIRED 

Head or SourceId was not reserved for the VR Display before doing the Modeset or the dedicated display.

NVAPI_TIMING_NOT_SUPPORTED 

Provided timing is not supported.

NVAPI_HDCP_ENCRYPTION_FAILED 

HDCP Encryption Failed for the device. Would be applicable when the device is HDCP Capable.

NVAPI_PCLK_LIMITATION_FAILED 

Provided mode is over sink device pclk limitation.

NVAPI_NO_CONNECTOR_FOUND 

No connector on GPU found.

NVAPI_HDCP_DISABLED 

When a non-HDCP capable HMD is connected, we would inform user by this code.

NVAPI_API_IN_USE 

Atleast an API is still being called.

NVAPI_NVIDIA_DISPLAY_NOT_FOUND 

No display found on Nvidia GPU(s).

NVAPI_PRIV_SEC_VIOLATION 

Priv security violation, improper access to a secured register.

NVAPI_INCORRECT_VENDOR 

NVAPI cannot be called by this vendor.

NVAPI_DISPLAY_IN_USE 

DirectMode Display is already in use.

NVAPI_UNSUPPORTED_CONFIG_NON_HDCP_HMD 

The Config is having Non-NVidia GPU with Non-HDCP HMD connected.

NVAPI_MAX_DISPLAY_LIMIT_REACHED 

GPU's Max Display Limit has Reached.

NVAPI_INVALID_DIRECT_MODE_DISPLAY 

DirectMode not Enabled on the Display.

NVAPI_GPU_IN_DEBUG_MODE 

GPU is in debug mode, OC is NOT allowed.

NVAPI_D3D_CONTEXT_NOT_FOUND 

No NvAPI context was found for this D3D object.

NVAPI_STEREO_VERSION_MISMATCH 

there is version mismatch between stereo driver and dx driver

NVAPI_GPU_NOT_POWERED 

GPU is not powered and so the request cannot be completed.

NVAPI_ERROR_DRIVER_RELOAD_IN_PROGRESS 

The display driver update in progress.

NVAPI_WAIT_FOR_HW_RESOURCE 

Wait for HW resources allocation.

NVAPI_REQUIRE_FURTHER_HDCP_ACTION 

operation requires further HDCP action

NVAPI_DISPLAY_MUX_TRANSITION_FAILED 

Dynamic Mux transition failure.

NVAPI_INVALID_DSC_VERSION 

Invalid DSC version.

NVAPI_INVALID_DSC_SLICECOUNT 

Invalid DSC slice count.

NVAPI_INVALID_DSC_OUTPUT_BPP 

Invalid DSC output BPP.

NVAPI_FAILED_TO_LOAD_FROM_DRIVER_STORE 

There was an error while loading nvapi.dll from the driver store.

NVAPI_NO_VULKAN 

OpenGL does not export Vulkan fake extensions.

NVAPI_REQUEST_PENDING 

A request for NvTOPPs telemetry CData has already been made and is pending a response.

NVAPI_RESOURCE_IN_USE 

Operation cannot be performed because the resource is in use.

NVAPI_INVALID_IMAGE 

Device kernel image is invalid.

NVAPI_INVALID_PTX 

PTX JIT compilation failed.

NVAPI_NVLINK_UNCORRECTABLE 

Uncorrectable NVLink error was detected during the execution.

NVAPI_JIT_COMPILER_NOT_FOUND 

PTX JIT compiler library was not found.

NVAPI_INVALID_SOURCE 

Device kernel source is invalid.

NVAPI_ILLEGAL_INSTRUCTION 

While executing a kernel, the device encountered an illegal instruction.

NVAPI_INVALID_PC 

While executing a kernel, the device program counter wrapped its address space.

NVAPI_LAUNCH_FAILED 

An exception occurred on the device while executing a kernel.

NVAPI_NOT_PERMITTED 

Attempted operation is not permitted.

NVAPI_CALLBACK_ALREADY_REGISTERED 

The callback function has already been registered.

NVAPI_CALLBACK_NOT_FOUND 

The callback function is not found or not registered.

NVAPI_INVALID_OUTPUT_WIRE_FORMAT 

Invalid Wire Format for the VR HMD.


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