hi,i want use laptop webcam but give me error,I am install package but say no device,please help me

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Alireza kazemi
Alireza kazemi el 20 de Abr. de 2018
info = imaqhwinfo('dcam', 1); info.SupportedFormats'
Error using imaqhwinfo (line 143) There is no device with the specified DEVICEID.
imaqhwinfo('dcam')
ans =
AdaptorDllName: 'C:\MATLAB\SupportPackagesss\R2015a\dcamhardware\toolbox\imaq\supportpackages\dcam\adaptor\wi...'
AdaptorDllVersion: '4.9 (R2015a)'
AdaptorName: 'dcam'
DeviceIDs: {1x0 cell}
DeviceInfo: [1x0 struct]

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