MFC preliminary ---- implement Windows window to call in the C language file

• ---- Windows Desktop New Project Wizard:

   

•  Select a configuration item

   

• Win7 operating system on the machine environment under vs2017, create a new .c file
• Simple window program

#include <windows.h> int WINAPI WinMain (hInstance HINSTANCE, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) 
{ 
    MessageBox (NULL, TEXT ( " Register successful " ), TEXT ( " Welcome to the squirrel fight! " ), MB_OK );
     return 0 ; 
}