>Hi..All
>I develop application about Point of sale ..I want contect cash draw for my application..I check vendor about cash draw ..Then told me contect to serial port (com port) and send signal from comm port ..How I can do about my application when I want open cash draw?
>

You can use the MSCOMM32 ActiveX control to gain ;low-level access to a serial port; there are examples in the Files section and the FAQ showing how the MSCOMM32 control can be used to serve as templates. the specifics of your cash drawer will determine what exactly you have to do to make it work.