Windows平台PySide6环境下加载MSVC2019编译的C++ DLL失败的问题求助

大家好，我目前遇到了一个加载C++ DLL的棘手问题，先跟大家说明下我的开发环境：

Qt: 6.5.5,
pyside 6,
OS:  windows,
compiler for c++ libraries mscv2019

我的项目架构是核心逻辑用C/C实现，UI层基于QML开发。现在我想搭建一个子项目，用Python来处理业务逻辑，UI依旧保留QML，需要把C编译生成的DLL加载到Python代码中，让Python作为QML和C++核心逻辑之间的通信桥梁。

我已经尝试了两种加载DLL的方法，但都以失败告终：

方法1 #

dll_path = Path(r"C:\Simulator\Platform_Code\Build\QtCreator\outfiles\win64-x86-msvc\release\Test.dll")
if not dll_path.exists():
    print(f"DLL not found: {dll_path}")
    sys.exit(-1)

cpp_lib = QLibrary(str(dll_path))
print(f"Attempting to load cpp_lib from: {cpp_lib}")
result = cpp_lib.load()

if not result:
    print("Hi " + cpp_lib.errorString())
    sys.exit(-1)


if not cpp_lib.load():
    print(f"Failed to load the DLL: {cpp_lib.errorString()}")
    sys.exit(-1)
print("DLL loaded successfully.")

方法2 #

def load_all_dlls(folder_path):
    for filename in os.listdir(folder_path):
        if filename.endswith('.dll'):
            full_path = os.path.join(folder_path, filename)
            try:
                ctypes.CDLL(full_path)
                print(f"Successfully loaded {full_path}")
            except Exception as e:
                print(f"Failed to load {full_path}: {e}")

dll_path = Path(r"C:\Simulator\Platform_Code\Build\QtCreator\outfiles\win64-x86-msvc\release\Test.dll")
if not dll_path.exists():
    print(f"DLL not found: {dll_path}")
    sys.exit(-1)

cpp_lib = QLibrary(str(dll_path))
print(f"Attempting to load cpp_lib from: {cpp_lib}")

不管用哪种方法，我都会收到如下错误提示：

Attempting to load cpp_lib from: <PySide6.QtCore.QLibrary(0x140b6b0eb50) at 0x00000140B8C6F240>
Hi Cannot load library C:\\Simulator\\Platform_Code\\Build\\QtCreator\\outfiles\\win64-x86-msvc\\release\\Test.dll: The specified module could not be found.

有没有大佬能帮我分析下问题出在哪？应该怎么解决这个DLL加载失败的问题呢？

备注：内容来源于stack exchange，提问作者Shubhangani