一个简单的文本编辑程序源代码

最近花了五个多小时编写了一个简单的文本编辑小程序，在Dev-c++上编译通过。

main.cpp

#include <windows.h>
#include <commctrl.h>#include "main.h"LRESULT CALLBACK WndProc(HWND hwnd,UINT Message,WPARAM wParam,LPARAM lParam);
LRESULT CALLBACK MDIChildWndProc(HWND hwnd,UINT Message,WPARAM wParam,LPARAM lParam);char g_szAppName[]="MyMDIWindow";
char g_szChild[]="MyMDIChild";
HINSTANCE g_hInst;
HWND g_hMDIClient,g_hStatusBar,g_hToolBar;
HWND g_hMainWindow;BOOL LoadFile(HWND hEdit,LPSTR pszFileName)
{HANDLE hFile;BOOL bSuccess=FALSE;hFile=CreateFile(pszFileName,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);if(hFile!=INVALID_HANDLE_VALUE){DWORD dwFileSize;dwFileSize=GetFileSize(hFile,NULL);if(dwFileSize!=0xFFFFFFFF){LPSTR pszFileText;pszFileText=LPSTR(GlobalAlloc(GPTR,dwFileSize+1));if(pszFileText!=NULL){DWORD dwRead;if(ReadFile(hFile,pszFileText,dwFileSize,&dwRead,NULL)){pszFileText[dwFileSize]=0; // Null terminatorif(SetWindowText(hEdit,pszFileText)) bSuccess=TRUE; // It worked!}GlobalFree(pszFileText);}}CloseHandle(hFile);}return bSuccess;
}BOOL SaveFile(HWND hEdit,LPSTR pszFileName)
{HANDLE hFile;BOOL bSuccess=FALSE;hFile=CreateFile(pszFileName,GENERIC_WRITE,0,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);if(hFile!=INVALID_HANDLE_VALUE){DWORD dwTextLength;dwTextLength=GetWindowTextLength(hEdit);if(dwTextLength>0){// No need to bother if there's no text.   LPSTR pszText;pszText=LPSTR(GlobalAlloc(GPTR,dwTextLength+1));if(pszText!=NULL){if(GetWindowText(hEdit,pszText,dwTextLength+1)){DWORD dwWritten;if(WriteFile(hFile,pszText,dwTextLength,&dwWritten,NULL)) bSuccess=TRUE;}GlobalFree(pszText);}}CloseHandle(hFile);}return bSuccess;
}BOOL GetFileName(HWND hwnd,LPSTR pszFileName,BOOL bSave)
{OPENFILENAME ofn;ZeroMemory(&ofn,sizeof(ofn));pszFileName[0]=0;ofn.lStructSize=sizeof(ofn);ofn.hwndOwner=hwnd;ofn.lpstrFilter="Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0\0";ofn.lpstrFile=pszFileName;ofn.nMaxFile=MAX_PATH;ofn.lpstrDefExt="txt";if(bSave){ofn.Flags=OFN_EXPLORER|OFN_PATHMUSTEXIST|OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT;if(!GetSaveFileName(&ofn)) return FALSE;}else{ofn.Flags=OFN_EXPLORER|OFN_FILEMUSTEXIST|OFN_HIDEREADONLY;if(!GetOpenFileName(&ofn)) return FALSE;}return TRUE;
}int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpszCmdParam,int nCmdShow)
{MSG Msg;WNDCLASSEX WndClassEx;g_hInst=hInstance;WndClassEx.cbSize=sizeof(WNDCLASSEX);WndClassEx.style=CS_HREDRAW|CS_VREDRAW;WndClassEx.lpfnWndProc=WndProc;WndClassEx.cbClsExtra=0;WndClassEx.cbWndExtra=0;WndClassEx.hInstance=hInstance;WndClassEx.hIcon=LoadIcon(NULL,IDI_APPLICATION);WndClassEx.hCursor=LoadCursor(NULL,IDC_ARROW);WndClassEx.hbrBackground=(HBRUSH)(COLOR_3DSHADOW+1);WndClassEx.lpszMenuName="MAIN";WndClassEx.lpszClassName=g_szAppName;WndClassEx.hIconSm=LoadIcon(NULL,IDI_APPLICATION);if(!RegisterClassEx(&WndClassEx)){MessageBox(0,"Could Not Register Window","Oh Oh...",MB_ICONEXCLAMATION|MB_OK);return -1;}WndClassEx.lpfnWndProc=MDIChildWndProc;WndClassEx.lpszMenuName=NULL;WndClassEx.lpszClassName=g_szChild;WndClassEx.hbrBackground=(HBRUSH)(COLOR_3DFACE+1);if(!RegisterClassEx(&WndClassEx)){MessageBox(0,"Could Not Register Child Window","Oh Oh...",MB_ICONEXCLAMATION|MB_OK);return -1;}g_hMainWindow=CreateWindowEx(WS_EX_APPWINDOW,g_szAppName,"MDI File Editor",WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,0, 0, hInstance, NULL);if (g_hMainWindow==NULL){MessageBox(0,"No Window","Oh Oh...",MB_ICONEXCLAMATION|MB_OK);return -1;}ShowWindow(g_hMainWindow,nCmdShow);UpdateWindow(g_hMainWindow);while(GetMessage(&Msg,NULL,0,0)){if(!TranslateMDISysAccel(g_hMDIClient,&Msg)){TranslateMessage(&Msg);DispatchMessage(&Msg);}}return Msg.wParam;
}LRESULT CALLBACK WndProc(HWND hwnd,UINT Message,WPARAM wParam,LPARAM lParam)
{switch(Message){case WM_CREATE:{CLIENTCREATESTRUCT ccs;int iStatusWidths[]={200,300,-1};TBADDBITMAP tbab;TBBUTTON tbb[9];// Find window menu where children will be listedccs.hWindowMenu=GetSubMenu(GetMenu(hwnd),2);ccs.idFirstChild=ID_MDI_FIRSTCHILD;g_hMDIClient=CreateWindowEx(WS_EX_CLIENTEDGE,"mdiclient",NULL,WS_CHILD|WS_CLIPCHILDREN|WS_VSCROLL|WS_HSCROLL,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,hwnd,(HMENU)ID_MDI_CLIENT,g_hInst,(LPVOID)&ccs);ShowWindow(g_hMDIClient, SW_SHOW);g_hStatusBar=CreateWindowEx(0,STATUSCLASSNAME,NULL,WS_CHILD|WS_VISIBLE|SBARS_SIZEGRIP,0,0,0,0,hwnd,(HMENU)ID_STATUSBAR,g_hInst,NULL);SendMessage(g_hStatusBar,SB_SETPARTS,3,(LPARAM)iStatusWidths);SendMessage(g_hStatusBar,SB_SETTEXT,2,(LPARAM)"Toolbar & Statusbar Example");g_hToolBar=CreateWindowEx(0,TOOLBARCLASSNAME,NULL,WS_CHILD|WS_VISIBLE,0,0,0,0,hwnd,(HMENU)ID_TOOLBAR,g_hInst,NULL);// Send the TB_BUTTONSTRUCTSIZE message, which is required for// backward compatibility.SendMessage(g_hToolBar,TB_BUTTONSTRUCTSIZE,(WPARAM)sizeof(TBBUTTON),0);tbab.hInst=HINST_COMMCTRL;tbab.nID=IDB_STD_SMALL_COLOR;SendMessage(g_hToolBar,TB_ADDBITMAP,0,(LPARAM)&tbab);ZeroMemory(tbb,sizeof(tbb));tbb[0].iBitmap=STD_FILENEW;tbb[0].fsState=TBSTATE_ENABLED;tbb[0].fsStyle=TBSTYLE_BUTTON;tbb[0].idCommand=CM_FILE_NEW;tbb[1].iBitmap=STD_FILEOPEN;tbb[1].fsState=TBSTATE_ENABLED;tbb[1].fsStyle=TBSTYLE_BUTTON;tbb[1].idCommand=CM_FILE_OPEN;tbb[2].iBitmap=STD_FILESAVE;tbb[2].fsStyle=TBSTYLE_BUTTON;tbb[2].idCommand=CM_FILE_SAVE;tbb[3].fsStyle=TBSTYLE_SEP;tbb[4].iBitmap=STD_CUT;tbb[4].fsStyle=TBSTYLE_BUTTON;tbb[4].idCommand=CM_EDIT_CUT;tbb[5].iBitmap=STD_COPY;tbb[5].fsStyle=TBSTYLE_BUTTON;tbb[5].idCommand=CM_EDIT_COPY;tbb[6].iBitmap=STD_PASTE;tbb[6].fsStyle=TBSTYLE_BUTTON;tbb[6].idCommand=CM_EDIT_PASTE;tbb[7].fsStyle=TBSTYLE_SEP;tbb[8].iBitmap=STD_UNDO;tbb[8].fsStyle=TBSTYLE_BUTTON;tbb[8].idCommand=CM_EDIT_UNDO;SendMessage(g_hToolBar,TB_ADDBUTTONS,9,(LPARAM)&tbb);return 0;}case WM_COMMAND:{switch(LOWORD(wParam)){case CM_FILE_EXIT:PostMessage(hwnd,WM_CLOSE,0,0);break;case CM_FILE_NEW:{MDICREATESTRUCT mcs;HWND hChild;mcs.szTitle="[Untitled]";mcs.szClass=g_szChild;mcs.hOwner=g_hInst;mcs.x=mcs.cx=CW_USEDEFAULT;mcs.y=mcs.cy=CW_USEDEFAULT;mcs.style=MDIS_ALLCHILDSTYLES;hChild=(HWND)SendMessage(g_hMDIClient,WM_MDICREATE,0,(LPARAM)&mcs);if(!hChild){MessageBox(hwnd,"MDI Child creation failed.","Oh Oh...",MB_ICONEXCLAMATION|MB_OK);}break;}case CM_FILE_OPEN:{MDICREATESTRUCT mcs;HWND hChild;char szFileName[MAX_PATH];if(!GetFileName(hwnd,szFileName,FALSE)) break;mcs.szTitle=szFileName;mcs.szClass=g_szChild;mcs.hOwner=g_hInst;mcs.x=mcs.cx=CW_USEDEFAULT;mcs.y=mcs.cy=CW_USEDEFAULT;mcs.style=MDIS_ALLCHILDSTYLES;hChild=(HWND)SendMessage(g_hMDIClient,WM_MDICREATE,0,(LPARAM)&mcs);if(!hChild){MessageBox(hwnd,"MDI Child creation failed.","Oh Oh...",MB_ICONEXCLAMATION|MB_OK);}break;}case CM_WINDOW_TILEHORZ:PostMessage(g_hMDIClient,WM_MDITILE,MDITILE_HORIZONTAL,0);break;case CM_WINDOW_TILEVERT:PostMessage(g_hMDIClient,WM_MDITILE,MDITILE_VERTICAL,0);break;case CM_WINDOW_CASCADE:PostMessage(g_hMDIClient,WM_MDICASCADE,0,0);break;case CM_WINDOW_ARRANGE:PostMessage(g_hMDIClient,WM_MDIICONARRANGE,0,0);break;default:{if(LOWORD(wParam)>=ID_MDI_FIRSTCHILD){DefFrameProc(hwnd,g_hMDIClient,Message,wParam,lParam);}else{HWND hChild;hChild=(HWND)SendMessage(g_hMDIClient,WM_MDIGETACTIVE,0,0);if(hChild){SendMessage(hChild,WM_COMMAND,wParam,lParam);}}}}break;}case WM_SIZE:{RECT rectClient,rectStatus,rectTool;UINT uToolHeight,uStatusHeight,uClientAlreaHeight;SendMessage(g_hToolBar,TB_AUTOSIZE,0,0);SendMessage(g_hStatusBar,WM_SIZE,0,0);GetClientRect(hwnd,&rectClient);GetWindowRect(g_hStatusBar,&rectStatus);GetWindowRect(g_hToolBar,&rectTool);uToolHeight=rectTool.bottom-rectTool.top;uStatusHeight=rectStatus.bottom-rectStatus.top;uClientAlreaHeight=rectClient.bottom;MoveWindow(g_hMDIClient,0,uToolHeight,rectClient.right,uClientAlreaHeight-uStatusHeight-uToolHeight,TRUE);break;}case WM_CLOSE:DestroyWindow(hwnd);break;case WM_DESTROY:PostQuitMessage(0);break;default:return DefFrameProc(hwnd,g_hMDIClient,Message,wParam,lParam);}return 0;
}LRESULT CALLBACK MDIChildWndProc(HWND hwnd,UINT Message,WPARAM wParam,LPARAM lParam)
{switch(Message){case WM_CREATE:{char szFileName[MAX_PATH];HWND hEdit;hEdit=CreateWindowEx(WS_EX_CLIENTEDGE,"EDIT","",WS_CHILD|WS_VISIBLE|WS_HSCROLL|WS_VSCROLL|ES_MULTILINE|ES_WANTRETURN,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,hwnd,(HMENU)IDC_CHILD_EDIT,g_hInst,NULL);SendMessage(hEdit,WM_SETFONT,(WPARAM)GetStockObject(DEFAULT_GUI_FONT),MAKELPARAM(TRUE,0));GetWindowText(hwnd,szFileName,MAX_PATH);if(*szFileName!='['){if(!LoadFile(hEdit,szFileName)){MessageBox(hwnd,"Couldn't Load File.","Error.",MB_OK|MB_ICONEXCLAMATION);return -1; //cancel window creation}}break;}case WM_SIZE:if(wParam!=SIZE_MINIMIZED)MoveWindow(GetDlgItem(hwnd,IDC_CHILD_EDIT),0,0,LOWORD(lParam),HIWORD(lParam),TRUE);break;case WM_MDIACTIVATE:{HMENU hMenu,hFileMenu;BOOL EnableFlag;char szFileName[MAX_PATH];hMenu=GetMenu(g_hMainWindow);if(hwnd==(HWND)lParam){      //being activatedEnableFlag=TRUE;}else{EnableFlag=FALSE;    //being de-activated}EnableMenuItem(hMenu,1,MF_BYPOSITION|(EnableFlag?MF_ENABLED:MF_GRAYED));EnableMenuItem(hMenu,2,MF_BYPOSITION|(EnableFlag?MF_ENABLED:MF_GRAYED));hFileMenu=GetSubMenu(hMenu,0);EnableMenuItem(hFileMenu,CM_FILE_SAVE,MF_BYCOMMAND|(EnableFlag?MF_ENABLED:MF_GRAYED));EnableMenuItem(hFileMenu,CM_FILE_SAVEAS,MF_BYCOMMAND|(EnableFlag?MF_ENABLED:MF_GRAYED));DrawMenuBar(g_hMainWindow);SendMessage(g_hToolBar,TB_ENABLEBUTTON,CM_FILE_SAVE,MAKELONG(EnableFlag,0));SendMessage(g_hToolBar,TB_ENABLEBUTTON,CM_EDIT_UNDO,MAKELONG(EnableFlag,0));SendMessage(g_hToolBar,TB_ENABLEBUTTON,CM_EDIT_CUT,MAKELONG(EnableFlag,0));SendMessage(g_hToolBar,TB_ENABLEBUTTON,CM_EDIT_COPY,MAKELONG(EnableFlag,0));SendMessage(g_hToolBar,TB_ENABLEBUTTON,CM_EDIT_PASTE,MAKELONG(EnableFlag,0));GetWindowText(hwnd,szFileName,MAX_PATH);SendMessage(g_hStatusBar,SB_SETTEXT,0,(LPARAM)(EnableFlag?szFileName:""));break;}case WM_SETFOCUS:SetFocus(GetDlgItem(hwnd,IDC_CHILD_EDIT));break;case WM_COMMAND:{switch(LOWORD(wParam)){case CM_FILE_SAVE:{char szFileName[MAX_PATH];GetWindowText(hwnd,szFileName,MAX_PATH);if(*szFileName!='['){if(!SaveFile(GetDlgItem(hwnd,IDC_CHILD_EDIT),szFileName)){MessageBox(hwnd,"Couldn't Save File.","Error.",MB_OK|MB_ICONEXCLAMATION);return 0;}}else{PostMessage(hwnd,WM_COMMAND,MAKEWPARAM(CM_FILE_SAVEAS,0),0);}return 0;}case CM_FILE_SAVEAS:{char szFileName[MAX_PATH];if(GetFileName(hwnd,szFileName,TRUE)){if(!SaveFile(GetDlgItem(hwnd,IDC_CHILD_EDIT),szFileName)){MessageBox(hwnd,"Couldn't Save File.","Error.",MB_OK|MB_ICONEXCLAMATION);return 0;}else{SetWindowText(hwnd,szFileName);}}return 0;}case CM_EDIT_UNDO:SendDlgItemMessage(hwnd,IDC_CHILD_EDIT,EM_UNDO,0,0);break;case CM_EDIT_CUT:SendDlgItemMessage(hwnd,IDC_CHILD_EDIT,WM_CUT,0,0);break;case CM_EDIT_COPY:SendDlgItemMessage(hwnd,IDC_CHILD_EDIT,WM_COPY,0,0);break;case CM_EDIT_PASTE:SendDlgItemMessage(hwnd,IDC_CHILD_EDIT,WM_PASTE,0,0);break;}return 0;}}return DefMDIChildProc(hwnd,Message,wParam,lParam);
}

main.h

#define CM_WINDOW_TILEVERT   9080
#define CM_WINDOW_TILEHORZ  9082
#define CM_WINDOW_ARRANGE   9081
#define CM_WINDOW_TILE  9080
#define CM_WINDOW_CASCADE   9076
#define CM_EDIT_PASTE   9079
#define CM_EDIT_COPY    9078
#define CM_EDIT_CUT 9077
#define CM_EDIT_REDO    9076
#define CM_EDIT_UNDO    9075
#define CM_FILE_SAVEAS  9074
#define CM_FILE_SAVE    9073
#define CM_FILE_OPEN    9072
#define CM_HELP_ABOUT   9072
#define CM_FILE_EXIT    9071
#define CM_FILE_NEW 9070
#define ID_STATUSBAR       4997
#define ID_TOOLBAR         4998
#define ID_MDI_CLIENT      4999
#define ID_MDI_FIRSTCHILD  50000
#define IDC_CHILD_EDIT      2000

resource.rc

#include "main.h"MAIN MENU
{POPUP"&File"{MENUITEM"&New",CM_FILE_NEWMENUITEM"&Open...",CM_FILE_OPENMENUITEM"&Save",CM_FILE_SAVE,GRAYEDMENUITEM"Save &As...",CM_FILE_SAVEAS,GRAYEDMENUITEM SEPARATORMENUITEM"E&xit",CM_FILE_EXIT}POPUP "&Edit",GRAYED{MENUITEM"&Undo\tCtrl+Z",CM_EDIT_UNDOMENUITEM SEPARATORMENUITEM"Cu&t\tCtrl+X",CM_EDIT_CUTMENUITEM"&Copy\tCtrl+C",CM_EDIT_COPYMENUITEM"&Paste\tCtrl+V",CM_EDIT_PASTE}POPUP "&Window",GRAYED{MENUITEM"&Cascade",CM_WINDOW_CASCADEMENUITEM"Tile &Horizontal",CM_WINDOW_TILEHORZMENUITEM"Tile &Vertical",CM_WINDOW_TILEVERTMENUITEM"Arrange &Icons",CM_WINDOW_ARRANGE}
}

程序下载链接https://download.csdn.net/download/m0_69084985/85892559?spm=1001.2014.3001.5503

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