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user32

About this tag
The user32 tag on WindowsForum.com covers discussions about the USER32.dll system library, a core component of the Windows API that manages user interface elements, window handles, and input. Threads tagged with user32 include troubleshooting crashes where USER32.dll is the fault module, such as in Spotify or rundll32.exe errors with exception code c0000005. Developers also discuss using user32.dll functions programmatically, for example calling GetForegroundWindow from Python via ctypes to retrieve window handles, or controlling microphone settings in LabVIEW through user32 API calls. These topics span both debugging application crashes and leveraging the Windows API for custom software development.
  1. A

    Windows 7 Controlling Microphone Feedback Loop in LabVIEW Using Windows API

    I'm building an audio app in Labview that needs to loop the microphone out to the speaker at times. The checkbox control is in the Control Panel/Sound/Microphone dialog. I can control the volume through user32.dll although the example I found uses 3 hex constants for parameters and I have no...
    • ABB developer
    • Thread
    • api audio control panel documentation labview microphone sound card user32 volume
    • Replies: 1
    • Forum: Windows Software
  2. M

    Windows 10 Python: get PID from window handle

    hi I am trying to get PID from the foreground window, but this doesn't work because I am passing the wrong kind of handle to the function. This is under python. How do I fix this? thx! import ctypes import time time.sleep(2) handle = ctypes.windll.user32.GetForegroundWindow() print(handle)...
    • Mikelin
    • Thread
    • api coding ctypes foreground window getprocessid kernel32 pid process programming python scripting troubleshooting user32 window handle
    • Replies: 2
    • Forum: Programming and Scripting
  3. B

    Windows 8 I can't load Spotify

    I had Spotify running then it stopped. I uninstalled it and reinstalled it and it wouldn't install. I set myself up as Administrator, uninstalled it, attempted to reinstall it and this is what I get: Problem signature: Problem Event Name: APPCRASH Application Name: Spotify.exe Application...
    • brisbanebob
    • Thread
    • 32-bit 64-bit administrator appcrash application audio error exception fault module installation os version reinstall software spotify support system error troubleshooting user32 windows 8
    • Replies: 2
    • Forum: Windows Help and Support
  4. ptmocho

    Windows Vista Vista Business sp1 ERROR APPCRASH

    Hi I have vista business with sp1, this error has occurred to many times : Nome do Evento de Problema: APPCRASH Nome da aplicação: rundll32.exe Versão da aplicação: 6.0.6000.16386 Carimbo de Data/Hora da Aplicação: 4549b0e1 Nome do Módulo com Falhas...
    • ptmocho
    • Thread
    • appcrash business error exception rundll32 sp1 support troubleshooting user32 windows vista
    • Replies: 1
    • Forum: Windows Help and Support
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