/* Author Mike White, 1996. Based on original WizUnZip code by * Robert Heath. */#include <windows.h>    /* required for all Windows applications */#include <stdio.h>#include "wiz.h"#include "wizver.h"#include "api.h"#ifndef WIN32#define UNZIP_DLL_NAME "UnZip16"#define DLL_VERSION "(16-bit Version)"#define ZIP_DLL_NAME "Zip16"#else#define UNZIP_DLL_NAME "UnZip32"#define DLL_VERSION "(32-bit Version)"#define ZIP_DLL_NAME "Zip32"#endif/****************************************************************************    FUNCTION: About(HWND, unsigned, WPARAM, LPARAM)    PURPOSE:  Processes messages for "About" dialog box    MESSAGES:    WM_INITDIALOG - initialize dialog box    WM_COMMAND    - Input received****************************************************************************/#ifdef __BORLANDC__#pragma argsused#endifBOOL WINAPIAboutProc(HWND hwndDlg, WORD wMessage, WPARAM wParam, LPARAM lParam){UzpVer2 VersionUzp;ZpVer   VersionZp;char string[80];#ifndef USE_UNZIP_LIBtypedef void (WINAPI * _get_unzip_ver) (UzpVer2 far *);_get_unzip_ver GetUnzipVersion;#endif#ifndef USE_ZIP_LIBtypedef void (WINAPI * _get_zip_ver) (ZpVer far *);_get_zip_ver GetZipVersion;#endifif ((wMessage == WM_CLOSE) ||    (wMessage == WM_COMMAND && LOWORD(wParam) == IDOK))        EndDialog(hwndDlg, TRUE);if (wMessage == WM_INITDIALOG)   {#ifndef BETA   sprintf(string, "%s %s", APPLICATION, DLL_VERSION);   SetWindowText(hwndDlg, string);#else   SetWindowText(hwndDlg, "BETA - Do Not Distribute");#endif   sprintf(string, "Info-ZIP's WiZ version %d.%d.%d%s %s",      WIZ_MAJORVER, WIZ_MINORVER, WIZ_PATCHLEVEL, WIZBETALEVEL,      WIZ_VERSION_DATE);   SetDlgItemText(hwndDlg, IDM_ABOUT_VERSION_INFO, string);#ifndef USE_ZIP_LIB   (_get_zip_ver) GetZipVersion =      (_get_zip_ver)GetProcAddress(hZipDll, "ZpVersion");   if (!GetZipVersion)      {      lstrcpy(string, "Cannot get ZpVersion address");      }   else      {      (*GetZipVersion)(&VersionZp);      sprintf(string, "%s DLL Version %d.%d%d %s",         ZIP_DLL_NAME,         VersionZp.windll.major,         VersionZp.windll.minor,         VersionZp.windll.patchlevel,         VersionZp.betalevel);      }#else      ZpVersion(&VersionZp);      sprintf(string, "%s Library Version %d.%d%d %s",         ZIP_DLL_NAME,         VersionZp.windll.major,         VersionZp.windll.minor,         VersionZp.windll.patchlevel,         VersionZp.betalevel);#endif   SetDlgItemText(hwndDlg, IDM_ABOUT_ZIP_INFO, string);#ifndef USE_UNZIP_LIB   (_get_unzip_ver) GetUnzipVersion =      (_get_unzip_ver)GetProcAddress(hUnzipDll, "UzpVersion2");   if (!GetUnzipVersion)              {      lstrcpy(string, "Cannot get UzpVersion address");      }   else      {      (*GetUnzipVersion)(&VersionUzp);      sprintf(string, "%s DLL Version %d.%d%d %s",         UNZIP_DLL_NAME,         VersionUzp.windll.major,         VersionUzp.windll.minor,         VersionUzp.windll.patchlevel,         VersionUzp.betalevel);      }#else      UzpVersion2(&VersionUzp);      sprintf(string, "%s Library Version %d.%d%d %s",         UNZIP_DLL_NAME,         VersionUzp.windll.major,         VersionUzp.windll.minor,         VersionUzp.windll.patchlevel,         VersionUzp.betalevel);#endif   SetDlgItemText(hwndDlg, IDM_ABOUT_UNZIP_INFO, string);   CenterDialog(GetParent(hwndDlg), hwndDlg);   }return ((wMessage == WM_CLOSE) || (wMessage == WM_INITDIALOG) || (wMessage == WM_COMMAND))            ? TRUE : FALSE;}/* *      CenterDialog * *      Purpose: *              Moves the dialog specified by hwndDlg so that it is centered on *              the window specified by hwndParent. If hwndParent is null, *              hwndDlg gets centered on the screen. * *              Should be called while processing the WM_INITDIALOG message *              from the dialog's DlgProc(). * *      Arguments: *              HWND    parent hwnd *              HWND    dialog's hwnd * *      Returns: *              Nothing. * */voidCenterDialog(HWND hwndParent, HWND hwndDlg){RECT    rectDlg;RECT    rect;int             dx;int             dy;if (hwndParent == NULL)   {   rect.top = rect.left = 0;   rect.right = GetSystemMetrics(SM_CXSCREEN);   rect.bottom = GetSystemMetrics(SM_CYSCREEN);   }else   {   GetWindowRect(hwndParent, &rect);   }GetWindowRect(hwndDlg, &rectDlg);OffsetRect(&rectDlg, -rectDlg.left, -rectDlg.top);dx = (rect.left + (rect.right - rect.left -     rectDlg.right) / 2 + 4) & ~7;dy = rect.top + (rect.bottom - rect.top -     rectDlg.bottom) / 2;WinAssert(hwndDlg);MoveWindow(hwndDlg, dx, dy, rectDlg.right, rectDlg.bottom, 0);}