Hi, I am having problems in generating Asynchronous events from kernel mode to user mode.I am sending a large data to the device driver from the user mode application and i want the deviceiocontrol...

According to the documentation for the IoCallDriver function, it is supposed to return either the NTSTATUS value the lower driver set in the I/O Status Block or STATUS_PENDING. However, I have a...

Hi, I have to get printer utilization information such as number of jobs done, AveragePPM etc. Win32 API gives all these info as NULL or 0. So I thought of using driver level programming to extract...

Hi, The majority of printer drivers under Windows support only 8-bit B/W printers or 8-bit per channel color printers. Has anybody every tried to write a printer driver to support 10-bit (or higher)...

Hi All, How much time does it take to switch between threads in different processes assuming PASSIIVE_LEVEL and the same priority? Another words is it a very bad/good idea to have the working...

Hello: I am working on a USBCAMD driver, using the Driver Verifier to help with the debugging. I am getting a DRIVER_VERIFIER_DETECTED_VIOLATION (0x000000C4) critical error with parameter 1 =...

How to get USB Mass Storage Device volume root path?

We have several clients who receive this error when installing our printer driver on Windows XP. The proposed solution is to fix the path entry for %SystemRoot%\System32 \Wbem or copy framedyn.dll to...

What are these parameters in PF_SET_EXTENSION_HOOK_INFO" IPAddr RecvLinkNextHop and IPAddr SendLinkNextHop" for PF_FORWARD ACTION filter hook function ! Are they the same that the...

Hello everyone. I want to know if there is any news group for WHQL or HCT. Please let me know if there is any. Thank you. Have a nice day.

(First Question in the bottom)... Hope yopu can help me! Hi!!! I checked and it seems ok. So I will tell you what happens in my debugging: I created a simple driver(withot any I/O, memory or...

Hi all, Can anyone suggest a way to turn the mouse pointer back on after Windows has booted without a mouse plugged in? The purpose of this is to allow the computer to be remote-controlled without a...

Sir, i am a man in problem. my project submission for 3rd yr of engineerig is due friday and till now i cannot connect the damn driver to the video capture application i am developing. the device...

I am trying to read a reg property called "ParentIdPrefix". I open the key with the following: HKEY hkey = SetupDiOpenDevRegKey(info, devdata, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);

This GPD code given below is taken from the ddk sample - hplj5.gpd *PrintableArea: PAIR(9600, 12720) *PrintableOrigin: PAIR(300, 220) *CursorOrigin: PAIR(300, 220) *Command: CmdSelect { *Order:...

Hi all How can I provoke the system to search for not installed devices as if "Scan for hardware changes" button was cliked? Thanks, Vladimir

How can I install device driver on the Win9x system?

hi all i want to share a buffer between two driver. which is nothing but a tcp/ip packet or a complete Frame. which is transfered fromt the one driver to another driver .... is there any way to do...

Problem: Cubas SX V1.0 hangs 15 seconds on the MIDI initialisation if our AV Stream driver exports a MIDI Pin for rendering. Detail: The process services.exe uses 100% CPU time during initialisation....

hi all I took the mux sample code of Xp ddk and modified as per requirement. i am not able to change name of mux.dll if i keep the name to be mux.dll it works fine. but if i change name then the...