For the first time, the hardware such as a speech card is developed, decided to select the development interface of * .dll instead of Active X
After installing on the machine, it is found that there is no three dynamic link libraries on the machine where VC6.0 is installed, even if the driver is installed, it cannot be called.
The three link libraries are:
Mfc42d.dll
MSVCP60D.DLL
as well as**
The COM mode is called in .NET, the classification of the class is not obvious, do not know how to call the drive and function
Using IMPORTS can import this class, but when instantiated, a machine is reported to have an error, a robot unregistered function, referring to the VB 6.0 using public function declare to call.
There is also a problem when reading channels (digital channel / internal line / outside), starting to discover the number of channels, each time is 0, and later find that the device must be initialized (function OpenDender ()) can call the subsequent function.
In the current research, ListBox shows changes in channel status using ListBox
