ejectusb.cpp

EjectUSB 自动移除USB 设备代码

// EjectUSB.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include <stdlib.h>
#include <windows.h>
#include <SetupAPI.h>
#include <cfgmgr32.h>
#include <iostream.h>
#include <fstream.h>

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
 	// TODO: Place code here.
	//int res = 0;
	char USBDeviceName[100];
	
	ifstream InPort;

	InPort.open("USBName.txt",ios::in,0);

	if(!InPort)
		MessageBox(NULL," Cannot find file","MSG",0);

	InPort >> USBDeviceName;

	InPort.close();

	MessageBox(NULL,USBDeviceName,"MSG",0);
	//char* hid = "USB\\VID_0471&PID_0188\\0002F685D6A10F97";

	HMACHINE hMachine = NULL;
	DEVINST dnDevInst = NULL;
	PDEVINST pdnDevInst_OUT = &dnDevInst;

	CM_Locate_DevNode_Ex(pdnDevInst_OUT, USBDeviceName, CM_LOCATE_DEVNODE_NORMAL, hMachine);
	//_itoa(res, buffer, 10);
	//MessageBox(NULL, buffer, "msg", 0);

	CM_Request_Device_Eject_Ex(dnDevInst, NULL, NULL, 0, 0, hMachine );
	//_itoa(res, buffer, 10);
	//MessageBox(NULL, buffer, "msg", 0);
	
	return 0;

}