diff --git a/modules/videoio/doc/videoio_overview.markdown b/modules/videoio/doc/videoio_overview.markdown index b96d06089f..b2db4b3956 100644 --- a/modules/videoio/doc/videoio_overview.markdown +++ b/modules/videoio/doc/videoio_overview.markdown @@ -39,10 +39,10 @@ For example to grab from default camera using Direct Show as backend ```cpp //declare a capture object -cv::VideoCapture cap(0 + cv::CAP_DSHOW); +cv::VideoCapture cap(0, cv::CAP_DSHOW); //or specify the apiPreference with open -cap.open(0 + cv::CAP_DSHOW); +cap.open(0, cv::CAP_DSHOW); ``` If you want to grab from a file using the Direct Show as backend: diff --git a/modules/videoio/src/cap_aravis.cpp b/modules/videoio/src/cap_aravis.cpp index b406adbb83..35ad989325 100644 --- a/modules/videoio/src/cap_aravis.cpp +++ b/modules/videoio/src/cap_aravis.cpp @@ -58,7 +58,7 @@ // Please obvserve, that jumbo frames are required when high fps & 16bit data is selected. // (camera, switches/routers and the computer this software is running on) // -// Basic usage: VideoCapture cap(CAP_ARAVIS + ); +// Basic usage: VideoCapture cap(, CAP_ARAVIS); // // Supported properties: // read/write diff --git a/samples/cpp/videocapture_basic.cpp b/samples/cpp/videocapture_basic.cpp index 75992f6a0c..61ccb1f5e1 100644 --- a/samples/cpp/videocapture_basic.cpp +++ b/samples/cpp/videocapture_basic.cpp @@ -25,7 +25,7 @@ int main(int, char**) int deviceID = 0; // 0 = open default camera int apiID = cv::CAP_ANY; // 0 = autodetect default API // open selected camera using selected API - cap.open(deviceID + apiID); + cap.open(deviceID, apiID); // check if we succeeded if (!cap.isOpened()) { cerr << "ERROR! Unable to open camera\n";