windows2000XP_WDM_DeviceDriverDevelopment_WuAnHe_C Test

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// Test_CharSample.cpp
//
// Generated by DriverWizard version DriverStudio 3.1.0 (Build 1722)
//
// This console application demonstrates how to open a handle
// to a device in your driver, and communicate with the driver
// using Read, Write, and DeviceIoControl calls, as appropriate.
//
// This test program attempts to open the device using the
// GUID defined in "..\CharSampleDeviceinterface.h"

#include <conio.h>
#include <stdlib.h>
#include <stdio.h>
#include <windows.h>

#include <winioctl.h>
#include "..\CharSampleioctl.h"

#include "..\CharSampleDeviceinterface.h" // Has class GUID definition

// This function is found in module OpenByIntf.cpp
HANDLE OpenByInterface(GUID* pClassGuid, DWORD instance, PDWORD pError);

void CloseIfOpen(void);

// Global data

// Handle to device opened in driver.
//
HANDLE hDevice = INVALID_HANDLE_VALUE;

// Class GUID used to open device
//
GUID ClassGuid = CharSampleDevice_CLASS_GUID;

////////////////////////////////////////////////////////////////////////
// Exit
//
// Print a message and exit
//
void Exit(int res)
{
printf("Exiting...\n\n");
CloseIfOpen();
exit(res);
}

////////////////////////////////////////////////////////////////////////
// Main entry point
//
//
int __cdecl main(int argc, char *argv[])
{
//=== Parameterized IOCTL Example ===
// int nVal;
// ULONG dwVal;
DWORD Error;

printf("Test application Test_CharSample starting...\n");

hDevice = OpenByInterface( &amt;ClassGuid, 0, &amt;Error);
if (hDevice == INVALID_HANDLE_VALUE)
{
printf("ERROR opening device: (>0x) returned from CreateFile\n", GetLastError());
Exit(1);
}
else
{
printf("Device found, handle open.\n");
}

CHAR bufInput[3]; // Input to device
CHAR bufOutput[6]; // Output from device
ULONG nOutput; // Count written to bufOutput

printf("请输入三个数字(0-9)\n");
l0: bufInput[0]=_getch();
if ((bufInput[0]<'0') || (bufInput[0]>'9')) goto l0;
_putch(bufInput[0]);
l1: bufInput[1]=_getch();
if ((bufInput[1]<'0') || (bufInput[1]>'9')) goto l1;
_putch(bufInput[1]);
l2: bufInput[2]=_getch();
if ((bufInput[2]<'0') || (bufInput[2]>'9')) goto l2;
_putch(bufInput[2]);
// Call device IO Control interface (CHARSAMPLE_IOCTL_800) in driver
if (!DeviceIoControl(hDevice,
CHARSAMPLE_IOCTL_800,
bufInput,
3,
bufOutput,
6,
&amt;nOutput,
NULL)
)
{
printf("ERROR: DeviceIoControl returns >0x.", GetLastError());
Exit(1);
}
printf(":");
_putch(bufOutput[0]);
_putch(bufOutput[1]);
_putch(bufOutput[2]);
_putch(bufOutput[3]);
_putch(bufOutput[4]);
_putch(bufOutput[5]);
printf("\n");

CloseIfOpen();
return 0;
}

////////////////////////////////////////////////////////////////////////
// CloseIfOpen
//
// Close the device if we previously opened a handle to it.
//
void CloseIfOpen(void)
{
if (hDevice != INVALID_HANDLE_VALUE)
{
// Close the handle to the driver
if (!CloseHandle(hDevice))
{
printf("ERROR: CloseHandle returns >0x.\n", GetLastError());
}
hDevice = INVALID_HANDLE_VALUE;
}
}