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Re:Windows not recognizing .dll
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Date: 2006/06/26 13:23
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By: Mat
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Status: Admin
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Karma: 7
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| Posts: 211 |  |
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I have posted a response for you in the other thread, let me know if it helps. Mat
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Re:Windows not recognizing
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Date: 2008/07/15 13:10
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By: dat
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Status: Visitor
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Minh Thanh wrote:
I try to declare MPUSBAPI in VB 2005 express, but ive found this declaration did not work:
Public Const VID_PID_NORM = "vid_04d8&pid_000c"
Public Const VID_PID_BOOT = "vid_04d8&pid_000b"
Public Const END_POINT = "MCHP_EP1"
Declare Ansi Function MPUSBOpen Lib "MPUSBAPI.DLL" Alias "_MPUSBOpen" (ByVal DeviceInstance As UInteger, ByVal VID_PID As String, ByVal EndPoint As String, ByVal Direction As UInteger, ByVal Reserved As UInteger) As UInteger
and then i call:
OutPipe = MPUSBOpen(0, VID_PID_NORM, END_POINT, 1, 0)
It does not work because OutPipe = 0xffffffff (INVALID_HANDLE_VALUE)
so i think my declaration was wrong. I successully call MPUSBGetDeviceCount
It return 1 or 0 when i plug or unplug the board.
Sorry if i post this at wrong thread.
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