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1、windows sdk编程系列文章 - 文件压缩2008-08-05 07:30理论：aPLib()由卓越的编程大师Joergen Ibsen创建，是一个商业压缩库，供压缩程序数据的编程人员使用。aPLib是压缩领域中性能最优的产品之一，许多压缩程序用它压缩可执行文件。有一些作免杀的朋友也常常会用到这个压缩引擎，它可以用在你的压缩壳里。它既可以对整个文件进行压缩，也可以对文件的一部分进行压缩。本篇采用的aPlib版本是0.36。本篇用到的函数：1。压缩函数：extern C size_t aP_pack( const void *source, void *destination, size_
2、t length, void *workmem, BOOL (*callback)(size_t, size_t);/下面这个函数用于获取压缩引擎需要的临时缓冲的大小。extern C size_t aP_workmem_size( size_t input_size );2。解压缩函数：extern C size_t aP_depack_asm_fast( const void *source, void *destination );本篇采用的是静态库aPlib.lib, 这样更具有隐蔽性。另外，我们在代码中使用的压缩和解压缩的判断标志，你可以根据自己的情况做出调整。理论比较简单，我们直接
3、看代码。代码：见光盘vcappack#include windows.h#include commctrl.h#include Commdlg.h#include shellapi.h#include oleauto.h#pragma comment(lib,comctl32.lib)#pragma comment(lib,shell32.lib)#pragma comment(lib,Comdlg32.lib)#pragma comment(lib,aplib.lib)#pragma comment(lib,oleaut32.lib)extern C size_t aP_pack( cons
4、t void *source, void *destination, size_t length, void *workmem, BOOL (*callback)(size_t, size_t);extern C size_t aP_workmem_size( size_t input_size );extern C size_t aP_depack_asm_fast( const void *source, void *destination );/*/char szClassName = aPLib_Class;char szDisplayName = aPLib Pack;char pl
5、Select = Please Select File First;char btnClass = BUTTON;char EditClass = EDIT;char statClass = STATIC;CHAR tbClass = ToolbarWindow32;CHAR aborted = Packing aborted;BOOL Packing; BOOL ContPack = 1; BOOL killFlag; HICON g_hIcon;HWND g_hWnd;HWND g_hToolBar;HBITMAP g_hTbBmp;DWORD g_ThreadID;HINSTANCE g
6、_hInstance;HWND g_hEdit1;HWND g_hButn1;HWND g_hButn2;HWND g_hStat1;char szFileNameMAX_PATH;char szFilter = *.* 0;char SaveFile1 = Save File As;char Patn1 = *.*0;OPENFILENAME g_ofn;/*/HBITMAP SetBmpColor (HBITMAP hBitmap) HDC mDC; HBRUSH hBrush; HBITMAP hOldBmp; HBITMAP hReturn; HBRUSH hOldBrush; mDC
7、 = CreateCompatibleDC(NULL); hOldBmp = (HBITMAP) SelectObject(mDC,hBitmap); hBrush = CreateSolidBrush(GetSysColor(COLOR_BTNFACE); hOldBrush = (HBRUSH)SelectObject(mDC,hBrush); ExtFloodFill(mDC,1,1,GetPixel(mDC,1,1),FLOODFILLSURFACE); SelectObject(mDC,hOldBrush); DeleteObject(hBrush); hReturn = (HBIT
8、MAP)SelectObject(mDC,hBitmap); DeleteDC(mDC); return hReturn;void Do_ToolBar(HWND hWnd) TBBUTTON tbb; TBADDBITMAP tbab; DWORD dwSize; g_hTbBmp = LoadBitmap(g_hInstance,MAKEINTRESOURCE(750); g_hToolBar = CreateWindowEx(0,tbClass,szDisplayName,WS_CHILD |WS_VISIBLE|CCS_NODIVIDER | TBSTYLE_FLAT, 0,0,500
9、,40,hWnd,NULL,g_hInstance,NULL); SendMessage(g_hToolBar,TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON),0); dwSize = 4915275; SendMessage(g_hToolBar,TB_SETBITMAPSIZE,0,dwSize); g_hTbBmp = SetBmpColor(g_hTbBmp); tbab.hInst = 0; tbab.nID = (DWORD)g_hTbBmp; SendMessage(g_hToolBar,TB_ADDBITMAP,12,(LPARAM)&tbab);
10、SendMessage(g_hToolBar,TB_SETBUTTONSIZE,0,dwSize); tbb.fsState = TBSTATE_ENABLED; tbb.dwData = 0; tbb.iString = 0; tbb.iBitmap = 0; tbb.idCommand = 50; tbb.fsStyle = TBSTYLE_BUTTON; SendMessage(g_hToolBar,TB_ADDBUTTONS,1,(LPARAM)&tbb); tbb.iBitmap = 1; tbb.idCommand = 51; tbb.fsStyle = TBSTYLE_BUTTO
11、N; SendMessage(g_hToolBar,TB_ADDBUTTONS,1,(LPARAM)&tbb); tbb.iBitmap = 2; tbb.idCommand = 52; tbb.fsStyle = TBSTYLE_BUTTON; SendMessage(g_hToolBar,TB_ADDBUTTONS,1,(LPARAM)&tbb); tbb.iBitmap = 3; tbb.idCommand = 53; tbb.fsStyle = TBSTYLE_BUTTON; SendMessage(g_hToolBar,TB_ADDBUTTONS,1,(LPARAM)&tbb); H
12、WND EditSl(CHAR *szDisplayName,DWORD x, DWORD y, DWORD wd,DWORD ht,HWND hParent,DWORD Editid) return CreateWindowEx(WS_EX_CLIENTEDGE,EditClass,szDisplayName, WS_VISIBLE | WS_CHILDWINDOW | ES_AUTOHSCROLL |ES_NOHIDESEL, x,y,wd,ht,hParent,(HMENU)Editid,g_hInstance,NULL);HWND PushButton(CHAR *szDisplayN
13、ame,DWORD x, DWORD y, DWORD wd,DWORD ht,HWND hParent,DWORD Btnid) return CreateWindowEx(0, btnClass,szDisplayName, WS_CHILD | WS_VISIBLE, x,y,wd,ht,hParent,(HMENU)Btnid, g_hInstance,NULL);HWND Static(CHAR *szDisplayName,DWORD x, DWORD y, DWORD wd,DWORD ht,HWND hParent,DWORD stcid) return CreateWindo
14、wEx(WS_EX_STATICEDGE, statClass,szDisplayName, WS_CHILD | WS_VISIBLE | SS_CENTER, x,y,wd,ht,hParent,(HMENU)stcid, g_hInstance,NULL);void SaveFileName(HWND hParent,char *lpTitle,char *lpfilter) g_ofn.lStructSize = sizeof(OPENFILENAME); g_ofn.hwndOwner = hParent; g_ofn.hInstance = g_hInstance; g_ofn.l
15、pstrFilter = lpfilter; g_ofn.lpstrFile = szFileName; g_ofn.nMaxFile = MAX_PATH; g_ofn.lpstrTitle = lpTitle; g_ofn.Flags = OFN_EXPLORER|OFN_LONGNAMES|OFN_OVERWRITEPROMPT; GetSaveFileName(&g_ofn);BOOL cbProc(size_t len1,size_t len2) CHAR buff32; char buf216; wsprintf(buff,%d,len1); wsprintf(buf2,%d,le
16、n2); lstrcat(buff,=); lstrcat(buff,buf2); SendMessage(g_hStat1,WM_SETTEXT,0,(LPARAM)buff); return ContPack;DWORD WINAPI PackFile(LPVOID lpParameter) HANDLE hFile; DWORD ln; BSTR source; BSTR dest; BSTR working; DWORD br; size_t clenth; char szNameFile128 = 0; GetWindowText(g_hEdit1,szNameFile,128);
17、if(szNameFile0 =0) MessageBox(g_hWnd,plSelect,szDisplayName,MB_OK); return 0; hFile = CreateFile(szNameFile,GENERIC_READ,FILE_SHARE_READ,NULL, OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); ln = GetFileSize(hFile,NULL); source = SysAllocStringByteLen(0,ln); ReadFile(hFile,source,ln,&br,NULL); CloseHandl
18、e(hFile); DWORD * pStr = (DWORD *)source; if(*pStr = 0x32335041) /23PA MessageBox(g_hWnd,This file has already been compressed!,szDisplayName,MB_OK); SysFreeString(source); return 0; dest = SysAllocStringByteLen(0,ln+8); working = SysAllocStringByteLen(0,aP_workmem_size(ln); Packing = 1; ContPack =
19、1; clenth = aP_pack(source,dest+4,ln,working,cbProc); if(clenth = 0) SendMessage(g_hStat1,WM_SETTEXT,0,(LPARAM)aborted); goto Abort; pStr = (DWORD*)dest; *pStr = 0x32335041; pStr+; *pStr = ln; szFileName0 = 0; SaveFileName(g_hWnd,SaveFile1,Patn1); if(szFileName0 != 0) hFile = CreateFile(szFileName,G
20、ENERIC_WRITE, NULL,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL, NULL); clenth += 8; WriteFile(hFile,dest,clenth,&br,NULL); CloseHandle(hFile); Abort: SysFreeString(source); SysFreeString(dest); SysFreeString(working); Packing = 0; return 0;void UnPackFile() HANDLE hFile; DWORD ln; BSTR source; BSTR des
21、t; DWORD br; size_t dsize; char szNameFile128 = 0; GetWindowText(g_hEdit1,szNameFile,128); if(szNameFile0 = 0) MessageBox(g_hWnd,plSelect,szDisplayName,MB_OK); return ; hFile = CreateFile(szNameFile,GENERIC_READ,FILE_SHARE_READ,NULL, OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); ln = GetFileSize(hFile,
22、NULL); source = SysAllocStringByteLen(0,ln); ReadFile(hFile,source,ln,&br,NULL); CloseHandle(hFile); DWORD * pStr = (DWORD *)source; if(*pStr = 0x32335041) /23PA MessageBox(g_hWnd,This file has not been compressed!,szDisplayName,MB_OK); SysFreeString(source); return; pStr+; dsize = *pStr; dest = Sys
23、AllocStringByteLen(0,dsize); aP_depack_asm_fast(source + 4,dest); szFileName0 = 0; SaveFileName(g_hWnd,SaveFile1,Patn1); if(szFileName0 != 0) hFile = CreateFile(szFileName,GENERIC_WRITE,NULL,NULL, CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL); WriteFile(hFile,dest,dsize,&br,NULL); CloseHandle(hFile); Sy
24、sFreeString(source); SysFreeString(dest);LRESULT CALLBACK WindowProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) HFONT hFont; switch(uMsg) case WM_COMMAND: if(Packing = 0) if(wParam = 50) HANDLE hThread = CreateThread(NULL,NULL,PackFile,NULL,0,&g_ThreadID); CloseHandle(hThread); else if(wPa
25、ram = 51) UnPackFile(); else if(wParam = 53) SendMessage(hwnd,WM_SYSCOMMAND,SC_CLOSE,NULL); else if (wParam = 54) szFileName0 = 0; g_ofn.lStructSize = sizeof(OPENFILENAME); g_ofn.hwndOwner = hwnd; g_ofn.hInstance = g_hInstance; g_ofn.lpstrFilter = szFilter; g_ofn.lpstrFile = szFileName; g_ofn.nMaxFi
26、le = MAX_PATH; g_ofn.lpstrTitle = Select File; g_ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_LONGNAMES; GetOpenFileName(&g_ofn); if(szFileName0 != 0) SetWindowText(g_hEdit1,szFileName); if(wParam = 52) ShellAbout(hwnd,aPLib Pack,Joergen Ibsens aPLib example,g_hIcon); else if(wParam = 55) Cont
27、Pack = 0; else if(wParam = 56) killFlag = 1; break; case WM_SYSCOLORCHANGE: Do_ToolBar(hwnd); break; case WM_CREATE: Do_ToolBar(hwnd); g_hEdit1 = EditSl(NULL,20,100,253,22,hwnd,700); g_hButn1 = PushButton(.,283,100,25,22,hwnd,54); g_hStat1 = Static(NULL,20,127,240,20,hwnd,500); g_hButn2 = PushButton
28、(stop,270,127,38,21,hwnd,55); hFont = (HFONT)GetStockObject(ANSI_VAR_FONT); SendMessage(g_hEdit1,WM_SETFONT,(WPARAM)hFont,0); SendMessage(g_hButn1,WM_SETFONT,(WPARAM)hFont,0); SendMessage(g_hStat1,WM_SETFONT,(WPARAM)hFont,0); SendMessage(g_hButn2,WM_SETFONT,(WPARAM)hFont,0); break; case WM_SIZE: Sen
29、dMessage(g_hToolBar,TB_AUTOSIZE,0,0); break; case WM_DESTROY: PostQuitMessage(NULL); break; default: return DefWindowProc(hwnd,uMsg,wParam,lParam); return 0;int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) WNDCLASSEX wc; MSG msg; DWORD Wwd; DWORD Wht;
30、 DWORD Wtx; DWORD Wty; InitCommonControls(); g_hIcon = LoadIcon(hInstance,MAKEINTRESOURCE(500); wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW | CS_VREDRAW | CS_BYTEALIGNWINDOW; wc.lpfnWndProc = WindowProc; wc.cbClsExtra = NULL; wc.cbWndExtra = NULL; g_hInstance = hInstance; wc.hInstance = hI
31、nstance; wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); wc.lpszMenuName = NULL; wc.lpszClassName = szClassName; wc.hIcon = g_hIcon; wc.hCursor = LoadCursor(NULL,IDC_ARROW); wc.hIconSm = g_hIcon; RegisterClassEx(&wc); Wwd = 334; Wht = 191; Wtx = (GetSystemMetrics(SM_CXSCREEN) - Wwd)/2; Wty = (GetSys
32、temMetrics(SM_CYSCREEN) - Wht)/2; g_hWnd = CreateWindowEx(WS_EX_LEFT,szClassName,szDisplayName, WS_OVERLAPPEDWINDOW|WS_SYSMENU,Wtx,Wty,Wwd,Wht, NULL,NULL,hInstance,NULL); SetMenu(g_hWnd,LoadMenu(hInstance,MAKEINTRESOURCE(600); ShowWindow(g_hWnd,SW_SHOWNORMAL); UpdateWindow(g_hWnd); while(GetMessage(
33、&msg,NULL,0,0) TranslateMessage(&msg); DispatchMessage(&msg); return msg.wParam;分析：由于我们用到了通用控件toolbarctrl,所以代码开头调用了 InitCommonControls();接下来，我们看到，在窗口回调过程中WM_CREATE消息处理里面，动态的创建了窗体上的子窗口控件。/创建Edit控件HWND EditSl(CHAR *szDisplayName,DWORD x, DWORD y, DWORD wd,DWORD ht,HWND hParent,DWORD Editid) return Cre
34、ateWindowEx(WS_EX_CLIENTEDGE,EditClass,szDisplayName, WS_VISIBLE | WS_CHILDWINDOW | ES_AUTOHSCROLL |ES_NOHIDESEL, x,y,wd,ht,hParent,(HMENU)Editid,g_hInstance,NULL);/创建Button控件HWND PushButton(CHAR *szDisplayName,DWORD x, DWORD y, DWORD wd,DWORD ht,HWND hParent,DWORD Btnid) return CreateWindowEx(0, bt
35、nClass,szDisplayName, WS_CHILD | WS_VISIBLE, x,y,wd,ht,hParent,(HMENU)Btnid, g_hInstance,NULL);/创建标签static控件HWND Static(CHAR *szDisplayName,DWORD x, DWORD y, DWORD wd,DWORD ht,HWND hParent,DWORD stcid) return CreateWindowEx(WS_EX_STATICEDGE, statClass,szDisplayName, WS_CHILD | WS_VISIBLE | SS_CENTER
36、, x,y,wd,ht,hParent,(HMENU)stcid, g_hInstance,NULL);下面我们重点看看工具条控件的创建。/替换位图中的背景色HBITMAP SetBmpColor (HBITMAP hBitmap) HDC mDC; HBRUSH hBrush; HBITMAP hOldBmp; HBITMAP hReturn; HBRUSH hOldBrush; mDC = CreateCompatibleDC(NULL); hOldBmp = (HBITMAP) SelectObject(mDC,hBitmap); hBrush = CreateSolidBrush(Ge
37、tSysColor(COLOR_BTNFACE); hOldBrush = (HBRUSH)SelectObject(mDC,hBrush); ExtFloodFill(mDC,1,1,GetPixel(mDC,1,1),FLOODFILLSURFACE); SelectObject(mDC,hOldBrush); DeleteObject(hBrush); hReturn = (HBITMAP)SelectObject(mDC,hBitmap); DeleteDC(mDC); return hReturn;void Do_ToolBar(HWND hWnd) TBBUTTON tbb; TBADDBITMAP tbab; DWORD dwSize; /加载工具条按钮位图 g_hTbBmp