#include <windows.h>
#include <appmodel.h>

int main() {
    HANDLE hProcess = GetCurrentProcess();
    UINT32 bufferLength = 0;
    PACKAGE_INFO_REFERENCE packageInfoReference = NULL;

    // 获取缓冲区大小
    HRESULT result = GetPackageInfo(hProcess, PACKAGE_FILTER_HEAD, &bufferLength, NULL, &packageInfoReference);

    if (result == ERROR_INSUFFICIENT_BUFFER) {
        // 为缓冲区分配内存
        BYTE* buffer = (BYTE*)malloc(bufferLength);
        if (buffer != NULL) {
            result = GetPackageInfo(hProcess, PACKAGE_FILTER_HEAD, &bufferLength, buffer, &packageInfoReference);

            if (SUCCEEDED(result)) {
                // 获取包信息
                PACKAGE_INFO* packageInfo = (PACKAGE_INFO*)buffer;
                wprintf(L"Current Package Info: Name=%s, Version=%s\n",
                    packageInfo->packageName,
                    packageInfo->packageVersion);

                // 释放 Package Info 句柄
                ClosePackageInfo(packageInfoReference);
            } else {
                // 处理错误
                wprintf(L"Error: 0x%x\n", result);
            }

            // 释放分配的内存
            free(buffer);
        } else {
            // 处理内存分配错误
            wprintf(L"Memory allocation error\n");
        }
    } else {
        // 处理错误
        wprintf(L"Error: 0x%x\n", result);
    }

    return 0;
}