最近因為要用LabVIEW抓Webcam的影像，
安裝了Vision Module和Vision Acquistion Software，發現有兩個Driver: IMAQ與IMAQdx，
好奇之下查的一下這兩個由甚麼不同?
參考網頁: http://digital.ni.com/public.nsf/allkb/0564022DAFF513D2862579490057D42E
1. The NI-IMAQ driver software supports National Instruments hardware only and is needed to use the following image acquisition devices:
簡單的說NI-IMAQ是支援NI開發的硬體的 Driver，適合的硬體如下:
- National Instruments Camera Link Frame Grabbers
- National Instruments Parallel Digital Frame Grabbers
- National Instruments Analog Frame Grabbers
- National Instruments 17xx Smart Cameras
2. The NI-IMAQdx driver software is needed to use third-party image acquisition devices which use the following buses and standards:
而NI-IMAQdx是支援使用第三方影像擷取裝飾的Driver，響螢幕上的Camera或是WebCAM都屬於這一類，
- Gigabit Ethernet Cameras Supporting GigE Vision
- FireWire IEEE 1394 Cameras
- USB 2.0 Cameras Supporting Microsoft DirectShow
- USB 3.0 Cameras Supporting USB3 Vision
3. The NI-IMAQ I/O driver software is a smaller driver API used exclusively to program the National Instruments Vision RIO image acquisition cards including the following cards:
NI-IMAQ I/O是支援NI的視覺RIO影像擷取卡的Driver
- NI PCIe-8255R
- NI PCI-8254R
- NI PCIe-8237R
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