> ¼ÛÈ£»ó wrote: > > I'm almost beginner at coding and poor at English. > > My question is that how I can use v4l api(?) on qt application. > > I want to display captured video on Qt widget( I didn't find any > matching qt class ). > > source is RGB24, NTSC. > > kind people, just hint me some code. > > should I post this message to Qt mailing list? You really need a combination of X and Qt to do it efficiently (rather than drawing it pixel by pixel). Use XCreateImage to create an XImage ZPixmap whose depth and visual matches your Qt display (QPaintDevice::x11AppDisplay()), then convert your captured video from the capture format (RGB24) to the XImage format, and finally draw the XImage to your Qt window by doing an XPutIMage() to the QWidget::winId() (X windows window ID) of the application window you want to. Ben
