topic If it's working fine, that in Software Archive https://community.intel.com/t5/Software-Archive/Some-trouble-in-Intel-RealSense-SDK-programming/m-p/1107357#M70864 <P>If it's working fine, that should evaluate to false, not true. Only if there is some error will it evaluate to true.</P> <P>Why: PXC_STATUS_NO_ERROR will be given an internal numeric value, say 0. All the other error codes will then have the value of -1,-2,-3 etc, so if the status is something other than NO_ERROR (ie, less than 0) it will evaluate as true then you can handle the error inside the if block. You can find a list of the possible statuses here:&nbsp;https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/index.html?pxcstatus.html</P> <P>Hopefully that makes sense!</P> Wed, 27 Apr 2016 08:30:12 GMT jb455 2016-04-27T08:30:12Z Some trouble in Intel RealSense SDK programming https://community.intel.com/t5/Software-Archive/Some-trouble-in-Intel-RealSense-SDK-programming/m-p/1107356#M70863 <P>Why the Initialization statement&nbsp;"psm-&gt;Init() &lt; PXC_STATUS_NO_ERROR" always gets the true result？</P> <P>&nbsp;</P> Wed, 27 Apr 2016 07:53:25 GMT https://community.intel.com/t5/Software-Archive/Some-trouble-in-Intel-RealSense-SDK-programming/m-p/1107356#M70863 yinhu_z_ 2016-04-27T07:53:25Z If it's working fine, that https://community.intel.com/t5/Software-Archive/Some-trouble-in-Intel-RealSense-SDK-programming/m-p/1107357#M70864 <P>If it's working fine, that should evaluate to false, not true. Only if there is some error will it evaluate to true.</P> <P>Why: PXC_STATUS_NO_ERROR will be given an internal numeric value, say 0. All the other error codes will then have the value of -1,-2,-3 etc, so if the status is something other than NO_ERROR (ie, less than 0) it will evaluate as true then you can handle the error inside the if block. You can find a list of the possible statuses here:&nbsp;https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/index.html?pxcstatus.html</P> <P>Hopefully that makes sense!</P> Wed, 27 Apr 2016 08:30:12 GMT https://community.intel.com/t5/Software-Archive/Some-trouble-in-Intel-RealSense-SDK-programming/m-p/1107357#M70864 jb455 2016-04-27T08:30:12Z