/// <summary>
/// 开启或者关闭指定的设备驱动
/// 注意：该方法目前没有检查是否需要重新启动计算机。^.^
/// </summary>
/// <param name="hDevInfo"></param>
/// <param name="devInfoData"></param>
/// <param name="bEnable"></param>
/// <returns></returns>
private bool OpenClose(IntPtr hDevInfo, Externs.SP_DEVINFO_DATA devInfoData, bool bEnable, bool isRemove = false)
{
try
{
int szOfPcp;
IntPtr ptrToPcp;
int szDevInfoData;
IntPtr ptrToDevInfoData;
Externs.SP_PROPCHANGE_PARAMS SP_PROPCHANGE_PARAMS1 = new Externs.SP_PROPCHANGE_PARAMS();
SP_REMOVEDEVICE_PARAMS SP_REMOVEDEVICE_PARAMS1 = new SP_REMOVEDEVICE_PARAMS();
if (bEnable)
{
SP_PROPCHANGE_PARAMS1.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Externs.SP_CLASSINSTALL_HEADER));
SP_PROPCHANGE_PARAMS1.ClassInstallHeader.InstallFunction = Externs.DIF_PROPERTYCHANGE;
SP_PROPCHANGE_PARAMS1.StateChange = Externs.DICS_ENABLE;
SP_PROPCHANGE_PARAMS1.Scope = Externs.DICS_FLAG_GLOBAL;
SP_PROPCHANGE_PARAMS1.HwProfile = 0;
szOfPcp = Marshal.SizeOf(SP_PROPCHANGE_PARAMS1);
ptrToPcp = Marshal.AllocHGlobal(szOfPcp);
Marshal.StructureToPtr(SP_PROPCHANGE_PARAMS1, ptrToPcp, true);
szDevInfoData = Marshal.SizeOf(devInfoData);
ptrToDevInfoData = Marshal.AllocHGlobal(szDevInfoData);
if (Externs.SetupDiSetClassInstallParams(hDevInfo, ptrToDevInfoData, ptrToPcp, Marshal.SizeOf(typeof(Externs.SP_PROPCHANGE_PARAMS))))
{
Externs.SetupDiCallClassInstaller(Externs.DIF_PROPERTYCHANGE, hDevInfo, ptrToDevInfoData);
}
SP_PROPCHANGE_PARAMS1.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Externs.SP_CLASSINSTALL_HEADER));
SP_PROPCHANGE_PARAMS1.ClassInstallHeader.InstallFunction = Externs.DIF_PROPERTYCHANGE;
SP_PROPCHANGE_PARAMS1.StateChange = Externs.DICS_ENABLE;
SP_PROPCHANGE_PARAMS1.Scope = Externs.DICS_FLAG_CONFIGSPECIFIC;
SP_PROPCHANGE_PARAMS1.HwProfile = 0;
}
else
{
SP_PROPCHANGE_PARAMS1.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Externs.SP_CLASSINSTALL_HEADER));
if (isRemove == true)
{
SP_REMOVEDEVICE_PARAMS1.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Externs.SP_CLASSINSTALL_HEADER));
SP_REMOVEDEVICE_PARAMS1.ClassInstallHeader.InstallFunction = Externs.DIF_REMOVE;
SP_REMOVEDEVICE_PARAMS1.Scope = Externs.DI_REMOVEDEVICE_GLOBAL;
SP_REMOVEDEVICE_PARAMS1.HwProfile = 0;
}
else
{
SP_PROPCHANGE_PARAMS1.ClassInstallHeader.InstallFunction = Externs.DIF_PROPERTYCHANGE;
SP_PROPCHANGE_PARAMS1.StateChange = Externs.DICS_DISABLE;
SP_PROPCHANGE_PARAMS1.Scope = Externs.DICS_FLAG_CONFIGSPECIFIC;
SP_PROPCHANGE_PARAMS1.HwProfile = 0;
}
}
szDevInfoData = Marshal.SizeOf(devInfoData);
ptrToDevInfoData = Marshal.AllocHGlobal(szDevInfoData);
Marshal.StructureToPtr(devInfoData, ptrToDevInfoData, true);
bool rslt1 = false;
bool rstl2 = false;
if (isRemove == true && bEnable == false)
{
szOfPcp = Marshal.SizeOf(SP_REMOVEDEVICE_PARAMS1);
ptrToPcp = Marshal.AllocHGlobal(szOfPcp);
Marshal.StructureToPtr(SP_REMOVEDEVICE_PARAMS1, ptrToPcp, true);
rslt1 = Externs.SetupDiSetClassInstallParams(hDevInfo, ptrToDevInfoData, ptrToPcp, Marshal.SizeOf(typeof(Externs.SP_REMOVEDEVICE_PARAMS)));
rstl2 = Externs.SetupDiCallClassInstaller(Externs.DIF_REMOVE, hDevInfo, ptrToDevInfoData);
}
else
{
szOfPcp = Marshal.SizeOf(SP_PROPCHANGE_PARAMS1);
ptrToPcp = Marshal.AllocHGlobal(szOfPcp);
Marshal.StructureToPtr(SP_PROPCHANGE_PARAMS1, ptrToPcp, true);
rslt1 = Externs.SetupDiSetClassInstallParams(hDevInfo, ptrToDevInfoData, ptrToPcp, Marshal.SizeOf(typeof(Externs.SP_PROPCHANGE_PARAMS)));
rstl2 = Externs.SetupDiCallClassInstaller(Externs.DIF_PROPERTYCHANGE, hDevInfo, ptrToDevInfoData);
}
if ((!rslt1) || (!rstl2))
{
throw new Exception("不能更改设备状态。");
}
else
{
return(true);
}
}
catch (Exception ex)
{
return(false);
}
}
