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Displaying a different bitmap in different child windows? - win32 in C
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hi there, i am trying to get my program to display a different bitmap in four different child windows of my win32 C program but i cant seem to do it. Any idea's? I have got the information so far off of the forgers win32 tutorial.
Any idea's?? any help will be gratefully received.
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#include <windows.h> #include <commctrl.h> #include "resource.h" const char g_szClassName[] = "myWindowClass"; const char g_szChildClassName[] = "myMDIChildWindowClass"; HBITMAP g_hbmBall = NULL; HWND g_hMDIClient = NULL; HWND g_hMainWindow = NULL; BOOL CALLBACK AboutDlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) { switch(Message) { case WM_INITDIALOG: return TRUE; case WM_COMMAND: switch(LOWORD(wParam)) { case IDOK: EndDialog(hwnd, IDOK); break; case IDCANCEL: EndDialog(hwnd, IDCANCEL); break; } break; default: return FALSE; } return TRUE; } //////////////////////////////////////////////////////////////////?/////////Default Child Window Class///////////////// //////////////////////////////////////////////////// /////////Default Child Window Class///////////////// //////////////////////////////////////////////////// HWND CreateNewMDIChild(HWND hMDIClient) { MDICREATESTRUCT mcs; HWND hChild; mcs.szTitle = "test"; mcs.szClass = g_szChildClassName; mcs.hOwner = GetModuleHandle(NULL); mcs.x = mcs.cx = CW_USEDEFAULT; mcs.y = mcs.cy = CW_USEDEFAULT; mcs.style = MDIS_ALLCHILDSTYLES; hChild = (HWND)SendMessage(hMDIClient, WM_MDICREATE, 0, (LONG)&mcs); if(!hChild) { MessageBox(hMDIClient, "MDI Child creation failed.", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK); } return hChild; } /////////KEY GENERATION Child Window Class///////////////// //////////////////////////////////////////////////// HWND CreateNewMDIChildkey(HWND hMDIClient) { MDICREATESTRUCT mcs; HWND hChild; mcs.szTitle = "Pseudo Key Generation"; mcs.szClass = g_szChildClassName; mcs.hOwner = GetModuleHandle(NULL); mcs.x = mcs.cx = CW_USEDEFAULT; mcs.y = mcs.cy = CW_USEDEFAULT; mcs.style = MDIS_ALLCHILDSTYLES; hChild = (HWND)SendMessage(hMDIClient, WM_MDICREATE, 0, (LONG)&mcs); if(!hChild) { MessageBox(hMDIClient, "MDI Child creation failed.", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK); } return hChild; } /////////CTAK Child Window Class///////////////// //////////////////////////////////////////////////// HWND CreateNewMDIChildctak(HWND hMDIClient) { MDICREATESTRUCT mcs; HWND hChild; mcs.szTitle = "CTAK Key Distribution"; mcs.szClass = g_szChildClassName; mcs.hOwner = GetModuleHandle(NULL); mcs.x = mcs.cx = CW_USEDEFAULT; mcs.y = mcs.cy = CW_USEDEFAULT; mcs.style = MDIS_ALLCHILDSTYLES; hChild = (HWND)SendMessage(hMDIClient, WM_MDICREATE, 0, (LONG)&mcs); if(!hChild) { MessageBox(hMDIClient, "MDI Child creation failed.", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK); } return hChild; } /////////KAK Child Window Class///////////////// //////////////////////////////////////////////////// HWND CreateNewMDIChildkak(HWND hMDIClient) { MDICREATESTRUCT mcs; HWND hChild; mcs.szTitle = "KAK Key Distribution"; mcs.szClass = g_szChildClassName; mcs.hOwner = GetModuleHandle(NULL); mcs.x = mcs.cx = CW_USEDEFAULT; mcs.y = mcs.cy = CW_USEDEFAULT; mcs.style = MDIS_ALLCHILDSTYLES; hChild = (HWND)SendMessage(hMDIClient, WM_MDICREATE, 0, (LONG)&mcs); if(!hChild) { MessageBox(hMDIClient, "MDI Child creation failed.", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK); } return hChild; } /////////FULL ENCRYPTION Child Window Class///////////////// //////////////////////////////////////////////////// HWND CreateNewMDIChildcryp(HWND hMDIClient) { MDICREATESTRUCT mcs; HWND hChild; mcs.szTitle = "Full Symmetric Encryption"; mcs.szClass = g_szChildClassName; mcs.hOwner = GetModuleHandle(NULL); mcs.x = mcs.cx = CW_USEDEFAULT; mcs.y = mcs.cy = CW_USEDEFAULT; mcs.style = MDIS_ALLCHILDSTYLES; hChild = (HWND)SendMessage(hMDIClient, WM_MDICREATE, 0, (LONG)&mcs); if(!hChild) { MessageBox(hMDIClient, "MDI Child creation failed.", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK); } return hChild; } ///////////////////////////////////////////////////////////////////////////// LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_CREATE: { HWND hTool; TBBUTTON tbb[4]; TBADDBITMAP tbab; HWND hStatus; int statwidths[] = {100, -1}; CLIENTCREATESTRUCT ccs; // Create MDI Client // Find window menu where children will be listed ccs.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 | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hwnd, (HMENU)IDC_MAIN_MDI, GetModuleHandle(NULL), (LPVOID)&ccs); if(g_hMDIClient == NULL) MessageBox(hwnd, "Could not create MDI client.", "Error", MB_OK | MB_ICONERROR); // Create Toolbar hTool = CreateWindowEx(0, TOOLBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE, 0, 0, 0, 0, hwnd, (HMENU)IDC_MAIN_TOOL, GetModuleHandle(NULL), NULL); if(hTool == NULL) MessageBox(hwnd, "Could not create tool bar.", "Error", MB_OK | MB_ICONERROR); // Send the TB_BUTTONSTRUCTSIZE message, which is required for // backward compatibility. SendMessage(hTool, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0); tbab.hInst = HINST_COMMCTRL; tbab.nID = IDB_STD_SMALL_COLOR; SendMessage(hTool, TB_ADDBITMAP, 0, (LPARAM)&tbab); ///////////MENU BUTTONS ALONG THE TOP/////////////// ///////////////////////// ZeroMemory(tbb, sizeof(tbb)); tbb[0].iBitmap = "NULL"; tbb[0].iString = "Key Generation"; tbb[0].fsState = TBSTATE_ENABLED; tbb[0].fsStyle = TBSTYLE_BUTTON; tbb[0].idCommand = ID_MENU_KEYGENERATION; tbb[1].iBitmap = "NULL"; tbb[1].iString = "CTAK Distribution"; tbb[1].fsState = TBSTATE_ENABLED; tbb[1].fsStyle = TBSTYLE_BUTTON; tbb[1].idCommand = ID_MENU_CTAKKEYDISTRIBUTION; tbb[2].iBitmap = "NULL"; tbb[2].iString = "KAK Distribution"; tbb[2].fsState = TBSTATE_ENABLED; tbb[2].fsStyle = TBSTYLE_BUTTON; tbb[2].idCommand = ID_MENU_KAKKEYDISTRIBUTION; tbb[3].iBitmap = "NULL"; tbb[3].iString = "Full Encryption"; tbb[3].fsState = TBSTATE_ENABLED; tbb[3].fsStyle = TBSTYLE_BUTTON; tbb[3].idCommand = ID_MENU_FULLSYMMETRICENCRYPTION; SendMessage(hTool, TB_ADDBUTTONS, sizeof(tbb)/sizeof(TBBUTTON), (LPARAM)&tbb); // Create Status bar hStatus = CreateWindowEx(0, STATUSCLASSNAME, NULL, WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP, 0, 0, 0, 0, hwnd, (HMENU)IDC_MAIN_STATUS, GetModuleHandle(NULL), NULL); SendMessage(hStatus, SB_SETPARTS, sizeof(statwidths)/sizeof(int), (LPARAM)statwidths); SendMessage(hStatus, SB_SETTEXT, 0, (LPARAM)"160285"); } break; case WM_SIZE: { HWND hTool; RECT rcTool; int iToolHeight; HWND hStatus; RECT rcStatus; int iStatusHeight; HWND hMDI; int iMDIHeight; RECT rcClient; // Size toolbar and get height hTool = GetDlgItem(hwnd, IDC_MAIN_TOOL); SendMessage(hTool, TB_AUTOSIZE, 0, 0); GetWindowRect(hTool, &rcTool); iToolHeight = rcTool.bottom - rcTool.top; // Size status bar and get height hStatus = GetDlgItem(hwnd, IDC_MAIN_STATUS); SendMessage(hStatus, WM_SIZE, 0, 0); GetWindowRect(hStatus, &rcStatus); iStatusHeight = rcStatus.bottom - rcStatus.top; // Calculate remaining height and size edit GetClientRect(hwnd, &rcClient); iMDIHeight = rcClient.bottom - iToolHeight - iStatusHeight; hMDI = GetDlgItem(hwnd, IDC_MAIN_MDI); SetWindowPos(hMDI, NULL, 0, iToolHeight, rcClient.right, iMDIHeight, SWP_NOZORDER); } break; case WM_CLOSE: DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; //////////////////////////////// ///////MAIN WINDOW CASES//////// //////////////////////////////// case WM_COMMAND: switch(LOWORD(wParam)) { ///////ABOUT CASE///////////// case ID_HELP_ABOUT: { int ret = DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_ABOUT), hwnd, AboutDlgProc); if(ret == -1){ MessageBox(hwnd, "Dialog failed!", "Error", MB_OK | MB_ICONINFORMATION); } } break; ///////KEY GENERATION CASE///////////// case ID_MENU_KEYGENERATION: CreateNewMDIChildkey(g_hMDIClient); break; ///////CTAK KEY DISTRIBUTION CASE///////////// case ID_MENU_CTAKKEYDISTRIBUTION: CreateNewMDIChildctak(g_hMDIClient); break; ///////KAK KEY DISTRIBUTION CASE///////////// case ID_MENU_KAKKEYDISTRIBUTION: CreateNewMDIChildkak(g_hMDIClient); break; ///////FULL SYMMETRIC ENCRYPTION CASE///////////// case ID_MENU_FULLSYMMETRICENCRYPTION: CreateNewMDIChildcryp(g_hMDIClient); break; case ID_FILE_EXIT: PostMessage(hwnd, WM_CLOSE, 0, 0); break; case ID_FILE_CLOSE: { HWND hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0); if(hChild) { SendMessage(hChild, WM_CLOSE, 0, 0); } } break; case ID_WINDOW_TILE: SendMessage(g_hMDIClient, WM_MDITILE, 0, 0); break; case ID_WINDOW_CASCADE: SendMessage(g_hMDIClient, WM_MDICASCADE, 0, 0); break; default: { if(LOWORD(wParam) >= ID_MDI_FIRSTCHILD) { DefFrameProc(hwnd, g_hMDIClient, WM_COMMAND, wParam, lParam); } else { HWND hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0); if(hChild) { SendMessage(hChild, WM_COMMAND, wParam, lParam); } } } } break; default: return DefFrameProc(hwnd, g_hMDIClient, msg, wParam, lParam); } return 0; } LRESULT CALLBACK MDIChildWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_CREATE: { HFONT hfDefault; HWND hEdit; // Create Edit Control hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "", WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL, 0, 0, 100, 100, hwnd, (HMENU)IDC_CHILD_EDIT, GetModuleHandle(NULL), NULL); if(hEdit == NULL) MessageBox(hwnd, "Could not create edit box.", "Error", MB_OK | MB_ICONERROR); hfDefault = GetStockObject(DEFAULT_GUI_FONT); SendMessage(hEdit, WM_SETFONT, (WPARAM)hfDefault, MAKELPARAM(FALSE, 0)); g_hbmBall = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_BALL)); } break; case WM_PAINT: { BITMAP bm; PAINTSTRUCT ps; HDC hdc = BeginPaint(hwnd, &ps); HDC hdcMem = CreateCompatibleDC(hdc); HBITMAP hbmOld = SelectObject(hdcMem, g_hbmBall); GetObject(g_hbmBall, sizeof(bm), &bm); BitBlt(hdc, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY); SelectObject(hdcMem, hbmOld); DeleteDC(hdcMem); EndPaint(hwnd, &ps); } break; case WM_DESTROY: DeleteObject(g_hbmBall); PostQuitMessage(0); break; case WM_MDIACTIVATE: { HMENU hMenu, hFileMenu; UINT EnableFlag; hMenu = GetMenu(g_hMainWindow); if(hwnd == (HWND)lParam) { //being activated, enable the menus EnableFlag = MF_ENABLED; } EnableMenuItem(hMenu, 1, MF_BYPOSITION | EnableFlag); EnableMenuItem(hMenu, 2, MF_BYPOSITION | EnableFlag); hFileMenu = GetSubMenu(hMenu, 0); EnableMenuItem(hFileMenu, ID_FILE_SAVEAS, MF_BYCOMMAND | EnableFlag); EnableMenuItem(hFileMenu, ID_FILE_CLOSE, MF_BYCOMMAND | EnableFlag); EnableMenuItem(hFileMenu, ID_FILE_CLOSEALL, MF_BYCOMMAND | EnableFlag); DrawMenuBar(g_hMainWindow); } break; ///////WINDOW COMMANDS////////// case WM_COMMAND: switch(LOWORD(wParam)) { ///////EXIT CASE///////////// case ID_FILE_EXIT: PostMessage(hwnd, WM_CLOSE, 0, 0); break; } break; ///////RESIZING THE WINDOW//////////// case WM_SIZE: { HWND hEdit; RECT rcClient; // Calculate remaining height and size edit GetClientRect(hwnd, &rcClient); hEdit = GetDlgItem(hwnd, IDC_CHILD_EDIT); SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom, SWP_NOZORDER); } return DefMDIChildProc(hwnd, msg, wParam, lParam); default: return DefMDIChildProc(hwnd, msg, wParam, lParam); } return 0; } BOOL SetUpMDIChildWindowClass(HINSTANCE hInstance) { WNDCLASSEX wc; wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = MDIChildWndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)(COLOR_3DFACE+1); wc.lpszMenuName = NULL; wc.lpszClassName = g_szChildClassName; wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); if(!RegisterClassEx(&wc)) { MessageBox(0, "Could Not Register Child Window", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK); return FALSE; } else return TRUE; } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { WNDCLASSEX wc; HWND hwnd; MSG Msg; InitCommonControls(); wc.cbSize = sizeof(WNDCLASSEX); wc.style = 0; wc.lpfnWndProc = WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_MYICON)); wc.hIconSm = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_MYICON), IMAGE_ICON, 16, 16, 0); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wc.lpszMenuName = MAKEINTRESOURCE(IDR_MAINMENU); wc.lpszClassName = g_szClassName; wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); if(!RegisterClassEx(&wc)) { MessageBox(NULL, "Window Registration Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK); return 0; } if(!SetUpMDIChildWindowClass(hInstance)) return 0; hwnd = CreateWindowEx( 0, g_szClassName, "The Symmetric Encryption Tutorial with CTAK & KAK", WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN, CW_USEDEFAULT, CW_USEDEFAULT, 480, 320, NULL, NULL, hInstance, NULL); if(hwnd == NULL) { MessageBox(NULL, "Window Creation Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK); return 0; } g_hMainWindow = hwnd; ShowWindow(hwnd, nCmdShow); UpdateWindow(hwnd); while(GetMessage(&Msg, NULL, 0, 0) > 0) { if (!TranslateMDISysAccel(g_hMDIClient, &Msg)) { TranslateMessage(&Msg); DispatchMessage(&Msg); } } return Msg.wParam; }
Any idea's?? any help will be gratefully received.
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