---
name: "rtcGetDeviceLastErrorMessage"
section: "3"
platform: "linux"
package: "libembree-dev"
version: "4.3.3+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/rtcGetDeviceLastErrorMessage"
---

# rtcGetDeviceLastErrorMessage(3)

### NAME

-

  ```
  rtcGetDeviceLastErrorMessage - returns a message corresponding
    to the last error code
  ```

### SYNOPSIS

-

  ```
  #include <embree4/rtcore.h>
  const char* rtcGetDeviceLastErrorMessage(RTCDevice device);
  ```

### DESCRIPTION

This function can be used to get a message corresponding to the last error code (returned by `rtcGetDeviceError`) which often provides details about the error that happened. The message is the same as the message that will written to console when verbosity is \> 0 or which is passed as the `str` argument of the `RTCErrorFunction` (see \[rtcSetDeviceErrorFunction\]). However, when device construction fails this is the only way to get additional information about the error. In this case, `rtcNewDevice` returns `NULL` as device. To query the error message for such a failed device construction, pass `NULL` as device to the `rtcGetDeviceLastErrorMessage` function. For all other invocations of `rtcGetDeviceLastErrorMessage`, a proper device pointer must be specified.

### EXIT STATUS

Returns a message corresponding to the last error code.

### SEE ALSO

\[rtcGetDeviceError\], \[rtcSetDeviceErrorFunction\]