C / C++ / MFC

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/* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sysinfo/base/systemparametersinfo.asp */<br />
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#include <stdio.h><br />
#include <windows.h><br />
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#define _WIN32_WINNT 0x0500<br />
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typedef BOOL (*MYPROC) (UINT, UINT, PVOID, UINT);<br />
HINSTANCE hinstLib; <br />
MYPROC ProcAdd; <br />
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BOOL result;   // return value of a call<br />
UINT uiAction; // the 4 params for function<br />
UINT uiParam;  // the 4 params for function<br />
PVOID pvParam; // the 4 params for function<br />
UINT fWinIni;  // the 4 params for function<br />
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int main()<br />
{<br />
  printf("started it up...\n");<br />
  hinstLib = LoadLibrary("User32.dll");<br />
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  if (hinstLib != NULL) <br />
  { <br />
    printf("loaded library...trying to find address of function...\n");<br />
    ProcAdd = (MYPROC) GetProcAddress(hinstLib, "SystemParametersInfo"); <br />
    printf("proc addr: %d\n", ProcAdd);<br />
    if (!ProcAdd) <br />
    {<br />
      printf("couldn't get proc addr\n");<br />
      FreeLibrary(hinstLib);<br />
      return 1;<br />
    }<br />
    printf("got proc addr...calling function\n");<br />
    result = (ProcAdd) (uiAction, uiParam, pvParam, fWinIni);  <br />
  } <br />
  else <br />
  {<br />
    printf("Failed to load lib\n");<br />
  }<br />
	<br />
  FreeLibrary(hinstLib);<br />
  printf("freed lib\n");<br />
  return 0;<br />
}<br />