StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>If the printer registers itself as a Human Interface Device, you can <a href="http://www.lvr.com/hidpage.htm" rel="nofollow noreferrer" title="The HID Page">P/INVOKE into the appropriate Win32 APIs</a>. Here are the signatures:</p> <pre><code> [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_FlushQueue( SafeFileHandle HidDeviceObject ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_FreePreparsedData( ref IntPtr PreparsedData ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_GetAttributes( SafeFileHandle HidDeviceObject , ref HIDD_ATTRIBUTES Attributes ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_GetFeature( SafeFileHandle HidDeviceObject , ref Byte lpReportBuffer , Int32 ReportBufferLength ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_GetInputReport( SafeFileHandle HidDeviceObject ,ref Byte lpReportBuffer ,Int32 ReportBufferLength ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern void HidD_GetHidGuid( ref System.Guid HidGuid ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_GetNumInputBuffers( SafeFileHandle HidDeviceObject , ref Int32 NumberBuffers ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_GetPreparsedData( SafeFileHandle HidDeviceObject ,ref IntPtr PreparsedData ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_SetFeature( SafeFileHandle HidDeviceObject , ref Byte lpReportBuffer , Int32 ReportBufferLength ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_SetNumInputBuffers( SafeFileHandle HidDeviceObject ,Int32 NumberBuffers ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Boolean HidD_SetOutputReport( SafeFileHandle HidDeviceObject ,ref Byte lpReportBuffer ,Int32 ReportBufferLength ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Int32 HidP_GetCaps( IntPtr PreparsedData, ref HIDP_CAPS Capabilities ); [ DllImport( "hid.dll", SetLastError=true ) ] public static extern Int32 HidP_GetValueCaps( Int16 ReportType , ref Byte ValueCaps , ref Int16 ValueCapsLength , IntPtr PreparsedData ); </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload