/// <summary>
/// Retrieves the number of Input reports the host can store.
/// </summary>
///
/// <param name="hidDeviceObject"> a handle to a device </param>
/// <param name="numberOfInputBuffers"> an integer to hold the returned value. </param>
///
/// <returns>
/// True on success, False on failure.
/// </returns>
public Boolean GetNumberOfInputBuffers(SafeFileHandle hidDeviceObject, ref Int32 numberOfInputBuffers)
{
Boolean success = false;
try
{
if (!((DeviceManagement.IsWindows98Gold())))
{
// ***
// 调用API函数: HidD_GetNumInputBuffers
success = HidDeclarations.HidD_GetNumInputBuffers(hidDeviceObject, ref numberOfInputBuffers);
Debug.WriteLine(this.MyDebugging.ResultOfAPICall("HidD_GetNumInputBuffers"));
}
else
{
// Under Windows 98 Gold, the number of buffers is fixed at 2.
numberOfInputBuffers = 2;
success = true;
}
return(success);
}
catch (Exception ex)
{
DisplayException(MODULE_NAME, ex);
throw;
}
}
/// <summary>
/// sets the number of input reports the host will store.
/// Requires Windows XP or later.
/// </summary>
///
/// <param name="hidDeviceObject"> a handle to the device.</param>
/// <param name="numberBuffers"> the requested number of input reports. </param>
///
/// <returns>
/// True on success. False on failure.
/// </returns>
public Boolean SetNumberOfInputBuffers(SafeFileHandle hidDeviceObject, Int32 numberBuffers)
{
try
{
if (!DeviceManagement.IsWindows98Gold())
{
// ***
// 调用API函数: HidD_SetNumInputBuffers
HidDeclarations.HidD_SetNumInputBuffers(hidDeviceObject, numberBuffers);
Debug.WriteLine(this.MyDebugging.ResultOfAPICall("HidD_SetNumInputBuffers"));
return(true);
}
else
{
// Not supported under Windows 98 Gold.
return(false);
}
}
catch (Exception ex)
{
DisplayException(MODULE_NAME, ex);
throw;
}
}