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