如何将Visual Studio中的结构打包到包含uint32_t的24位？

I am trying to port over an existing application from a 32-Bit ARM-microcontroller to desktop plattforms such as Microsoft Windows. GCC is used on the ARM and I was able successfully compile the application on windows using a 32-bit MinGW-compiler, however I had no success using Microsoft's Visual Studio Compiler and that is the reason why I am asking here for help. I am trying to port over an existing applicatio