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[DirectX 8.1 C/C++ Programmer's Reference] DIDEVICEINSTANCE (94.4444444444444%)
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[DirectX October 2006 Documentation] DIDEVICEINSTANCE (85.7142857142857%)
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[DirectX 7 Programmer's Reference] DIDEVICEINSTANCE (82.5396825396825%)
Microsoft DirectX 7.0 > DirectInput > DirectInput Reference > DirectInput C/C++ Reference > Structures