So I am trying to capture webcam snapshots ctypes in Python, here is the code:

import ctypes
from ctypes import wintypes

def CaptureWebcam(index: int, filePath: str) -> bool:
    avicap32 = ctypes.windll.avicap32
    WS_CHILD = 0x40000000
    WM_CAP_DRIVER_CONNECT = 0x0400 + 10
    WM_CAP_DRIVER_DISCONNECT = 0x0402
    WM_CAP_FILE_SAVEDIB = 0x0400 + 100 + 25

    hcam = avicap32.capCreateCaptureWindowW(
        wintypes.LPWSTR("Blank"),
        WS_CHILD,
        0, 0, 0, 0,
        ctypes.windll.user32.GetDesktopWindow(), 0
    )

    result = False

    if hcam:
        if ctypes.windll.user32.SendMessageA(hcam, WM_CAP_DRIVER_CONNECT, index, 0):
            if ctypes.windll.user32.SendMessageA(hcam, WM_CAP_FILE_SAVEDIB, 0, wintypes.LPWSTR(filePath)):
                result = True
            ctypes.windll.user32.SendMessageA(hcam, WM_CAP_DRIVER_DISCONNECT, 0, 0)
        ctypes.windll.user32.DestroyWindow(hcam)
    
    return result

However when I run here is what is happening;

My webcam’s LED indicator is turning on which means that the script is accessing my webcam however it is saving an empty file (0 Bytes) into the disk and the function is returning False.