WINAPI 编程获取文件版本信息

WINAPI 编程获取文件版本信息

cheungmine

本文演示如何使用win32 api 编写获得文件描述和产品版本。很简单的小程序。下面就是全部代码：test.c

//
// test.c
// by cheungmine
//
#include <windows.h>
#include <stdio.h>
#define DLLFILE  "C://WINDOWS//system32//aaaamon.dll"
//
// 使用 WIN32 API 取得文件的描述和版本信息
//
void GetFileDescriptionAndProductVersionA(LPCSTR lpstrFilename, 
          LPSTR lpoutFileDescription, UINT cbDescSize,
          LPSTR lpoutProductVersion, UINT cbVerSize)
{
  typedef DWORD(WINAPI *pfnGetFileVersionInfoSizeA)(LPCSTR,LPDWORD);
  typedef BOOL(WINAPI *pfnGetFileVersionInfoA)(LPCSTR,DWORD,DWORD,LPVOID);
  typedef BOOL(WINAPI *pfnVerQueryValueA)(const LPVOID,LPCSTR,LPVOID*,PUINT);
  HMODULE hDll = 0;
  DWORD   dwHandle=0;
  DWORD   dwInfoSize=0;
  pfnGetFileVersionInfoSizeA   fnGetFileVersionInfoSizeA = 0;
  pfnGetFileVersionInfoA       fnGetFileVersionInfoA = 0;
  pfnVerQueryValueA            fnVerQueryValueA = 0;
  
  *lpoutFileDescription = 0;
  *lpoutProductVersion = 0;
  
  // Load system32/version.dll module
  hDll = LoadLibraryA("version.dll");
  if (!hDll)
    return;
      
  fnGetFileVersionInfoSizeA = (pfnGetFileVersionInfoSizeA) GetProcAddress(hDll, "GetFileVersionInfoSizeA");
  fnGetFileVersionInfoA = (pfnGetFileVersionInfoA) GetProcAddress(hDll, "GetFileVersionInfoA");
  fnVerQueryValueA = (pfnVerQueryValueA) GetProcAddress(hDll, "VerQueryValueA");
  // If failed  to get procdure address
  if (!fnGetFileVersionInfoSizeA || !fnGetFileVersionInfoA || !fnVerQueryValueA){
    FreeLibrary(hDll);
    return;
  }
  dwInfoSize = fnGetFileVersionInfoSizeA(lpstrFilename, &dwHandle);
  
  if (dwInfoSize > 0){
    void *pvInfo = malloc(dwInfoSize);
    if (!pvInfo)
      exit(-1); // Out of memory
    if (fnGetFileVersionInfoA(lpstrFilename, 0, dwInfoSize, pvInfo)){
      struct LANGANDCODEPAGE {
        WORD wLanguage;
        WORD wCodePage;
      } *lpTranslate;
      
      // Read the list of languages and code pages.
      UINT cbTranslate = 0;
      
      if ( fnVerQueryValueA(pvInfo, "//VarFileInfo//Translation", (void**) &lpTranslate, &cbTranslate) ){
        // ONLY Read the file description for FIRST language and code page.
        if ((cbTranslate/sizeof(struct LANGANDCODEPAGE)) > 0){
          const char *lpBuffer=0;
          UINT  cbSizeBuf = 0;
          char  szSubBlock[50];
          
          // Retrieve file description for language and code page 0
          wsprintfA(szSubBlock, "//StringFileInfo//%04x%04x//FileDescription", lpTranslate[0].wLanguage, lpTranslate[0].wCodePage);
          if ( fnVerQueryValueA(pvInfo, szSubBlock, (void**)&lpBuffer, &cbSizeBuf) ){
            //warning4996: strncpy(lpoutFileDescription, lpBuffer, cbDescSize-1);
            strncpy_s(lpoutFileDescription, cbDescSize, lpBuffer, cbDescSize-1);
            lpoutFileDescription[cbDescSize-1] = 0;
          }
          // Retrieve file version for language and code page 0
          wsprintfA(szSubBlock, "//StringFileInfo//%04x%04x//ProductVersion", lpTranslate[0].wLanguage, lpTranslate[0].wCodePage);
          if ( fnVerQueryValueA(pvInfo, szSubBlock, (void**)&lpBuffer, &cbSizeBuf) ){
            //warning4996: strncpy(lpoutProductVersion, lpBuffer, cbVerSize-1);
            strncpy_s(lpoutProductVersion, cbVerSize, lpBuffer, cbVerSize-1);
            lpoutProductVersion[cbVerSize-1] = 0;
          }
          // Retrieve others for language and code page 0 if you like
          // ...
        }
      }
    }
    // Free memory
    free(pvInfo);
  }
  // Free mudule
  FreeLibrary(hDll);
}
int main(int argc, char* argv[])
{
  char  szFileDesc[128];
  char  szProductVersion[32];
  
  GetFileDescriptionAndProductVersionA(DLLFILE, szFileDesc, 128, szProductVersion, 32);
  printf("源文件：%s/n文件描述：%s/n产品版本：%s", DLLFILE, szFileDesc, szProductVersion);
  
  getchar();
  return 0;
}