Winapi win32编程 – 选项卡控件不显示

我一直在做一个选项卡控制，它只有在winMain中发布时才可见。 当我尝试在WM_CREATE消息句柄中创build选项卡时，什么也不显示。 这是我的代码：

#define WIN32_LEAN_AND_MEAN #define IDC_STATIC -1 #define ID_FILE_EXIT 101 #define ID_HELP_ABOUT 102 #define ID_B_BLANK 1001 #define ID_B_HOME 1002 #define ID_B_SAVE 1003 #include <strsafe.h> #include <windows.h> #include <CommCtrl.h> #include <iostream> #include <ShlObj.h> #include <cstring> HWND main_hwnd, tab_hwnd, tab0_hwnd, tab1_hwnd, tab2_hwnd, tab3_hwnd, tab4_hwnd; HINSTANCE tab_hinst; TCHAR HomePath[MAX_PATH*2], SavePath[MAX_PATH*2]; WNDCLASSEX wc; bool success=FALSE; MSG msg; HWND button; //button1, button2; static HWND text; // text1, text2, text3, text4; TCITEM tie; int focus = 0, NotifyCase = 0; void ErrorExit(LPTSTR lpszFunction) { // Retrieve the system error message for the last-error code LPVOID lpMsgBuf; LPVOID lpDisplayBuf; DWORD dw = GetLastError(); FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL ); // Display the error message and exit the process lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT, (lstrlen((LPCTSTR)lpMsgBuf)+lstrlen((LPCTSTR)lpszFunction)+40)*sizeof(TCHAR)); StringCchPrintf((LPTSTR)lpDisplayBuf, LocalSize(lpDisplayBuf) / sizeof(TCHAR), TEXT("%s failed with error %d: %s"), lpszFunction, dw, lpMsgBuf); MessageBox(NULL, (LPCTSTR)lpDisplayBuf, TEXT("Error"), MB_OK); LocalFree(lpMsgBuf); LocalFree(lpDisplayBuf); ExitProcess(dw); } // Step 4: The Window Procedure LRESULT CALLBACK WndProc(HWND hwnd, UINT Msg, WPARAM wParam, LPARAM lParam) { switch(Msg) { case WM_CREATE: { tab_hwnd = CreateWindowEx( 0, "SysTabControl32", "", WS_CHILD|WS_CLIPSIBLINGS, CW_USEDEFAULT, CW_USEDEFAULT, 681, 338, main_hwnd, NULL, tab_hinst, NULL); tab0_hwnd = CreateWindowEx( 0, "SysTabControl32", "", WS_CHILD|WS_CLIPSIBLINGS, 1, 22, 679, 315, tab_hwnd, NULL, tab_hinst, NULL); text = CreateWindow("Static","Home Directory",WS_CHILD | WS_VISIBLE,0,50,150,50,tab0_hwnd, 0, tab_hinst,0); text = CreateWindow("Static","C:\\",WS_CHILD | WS_VISIBLE,200,50,150,50,tab0_hwnd, 0, tab_hinst,0); button = CreateWindow("Button","Navigate to...", BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE ,350,42,100,25,tab0_hwnd,(HMENU)ID_B_HOME,tab_hinst,0); text = CreateWindow("Static","Save Directory",WS_CHILD | WS_VISIBLE,0,100,150,50,tab0_hwnd, 0, tab_hinst,0); text = CreateWindow("Static","C:\\",WS_CHILD | WS_VISIBLE,200,100,150,50,tab0_hwnd, 0, tab_hinst,0); button = CreateWindow("Button","Save to...", BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE ,350,92,100,25,tab0_hwnd,(HMENU)ID_B_SAVE,tab_hinst,0); tab1_hwnd = CreateWindowEx( 0, "SysTabControl32", "", WS_CHILD|WS_CLIPSIBLINGS, 1, 22, 679, 315, tab_hwnd, NULL, tab_hinst, NULL); tab2_hwnd = CreateWindowEx( 0, "SysTabControl32", "", WS_CHILD|WS_CLIPSIBLINGS, 1, 22, 679, 315, tab_hwnd, NULL, tab_hinst, NULL); tab3_hwnd = CreateWindowEx( 0, "SysTabControl32", "", WS_CHILD|WS_CLIPSIBLINGS, 1, 22, 679, 315, tab_hwnd, NULL, tab_hinst, NULL); tab4_hwnd = CreateWindowEx( 0, "SysTabControl32", "", WS_CHILD|WS_CLIPSIBLINGS, 1, 22, 679, 315, tab_hwnd, NULL, tab_hinst, NULL); tie.mask = TCIF_TEXT; tie.pszText = "Paths"; TabCtrl_InsertItem(tab_hwnd, 0, &tie); tie.pszText = "Output"; TabCtrl_InsertItem(tab_hwnd, 1, &tie); tie.pszText = "Parameters"; TabCtrl_InsertItem(tab_hwnd, 2, &tie); tie.pszText = "Configurations"; TabCtrl_InsertItem(tab_hwnd, 3, &tie); tie.pszText = "Run"; TabCtrl_InsertItem(tab_hwnd, 4, &tie); HMENU hMenu, hSubMenu; hMenu = CreateMenu(); hSubMenu = CreatePopupMenu(); AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&File"); AppendMenu(hSubMenu, MF_STRING, ID_FILE_EXIT, "&Exit"); hSubMenu = CreatePopupMenu(); AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&Help"); AppendMenu(hSubMenu, MF_STRING, ID_HELP_ABOUT, "&About"); SetMenu(hwnd, hMenu); } break; case WM_NOTIFY: switch(((LPNMHDR)lParam) ->code) { case TCN_SELCHANGING: switch(TabCtrl_GetCurFocus(tab_hwnd)) { case 0: ShowWindow(tab0_hwnd,SW_HIDE); break; case 1: ShowWindow(tab1_hwnd,SW_HIDE); break; case 2: ShowWindow(tab2_hwnd,SW_HIDE); break; case 3: ShowWindow(tab3_hwnd,SW_HIDE); break; case 4: ShowWindow(tab4_hwnd,SW_HIDE); break; default: return DefWindowProc(hwnd, Msg, wParam, lParam); break; } break; case TCN_SELCHANGE: switch(TabCtrl_GetCurFocus(tab_hwnd)) { case 0: ShowWindow(tab0_hwnd,SW_SHOW); break; case 1: ShowWindow(tab1_hwnd,SW_SHOW); break; case 2: ShowWindow(tab2_hwnd,SW_SHOW); break; case 3: ShowWindow(tab3_hwnd,SW_SHOW); break; case 4: ShowWindow(tab4_hwnd,SW_SHOW); break; default: return DefWindowProc(hwnd, Msg, wParam, lParam); break; } break; default: return DefWindowProc(hwnd, Msg, wParam, lParam); } break; case WM_COMMAND: switch(LOWORD(wParam)) { case ID_FILE_EXIT: PostMessage(hwnd, WM_CLOSE, 0, 0); break; case ID_HELP_ABOUT: return MessageBox(0, "This program is an alteration of ...", "About", MB_OK); //return DefWindowProc(hwnd2,0,0,0); case ID_B_HOME: MessageBox(tab0_hwnd,"HERE","OKAY",NULL); break; case ID_B_SAVE: break; case ID_B_BLANK: break; default: return DefWindowProc(hwnd, Msg, wParam, lParam); } break; case WM_CLOSE: DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd, Msg, wParam, lParam); } return 0; } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { tab_hinst = hInstance; //Step 1: Registering the Window Class wc.cbSize = sizeof(WNDCLASSEX); wc.style = 0; wc.lpfnWndProc = WndProc; 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_WINDOW+1); wc.lpszMenuName = NULL; wc.lpszClassName = "Home"; wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); if(!RegisterClassEx(&wc)) MessageBox(NULL, "Window Registration Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK); // Step 2: Creating the Window main_hwnd = CreateWindowEx( WS_EX_CLIENTEDGE, "Home", "The Home page", WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX, CW_USEDEFAULT, CW_USEDEFAULT, 700, 400, NULL, NULL, hInstance, NULL); if(main_hwnd == NULL) { MessageBox(NULL, "Window Creation Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK); return 0; } ShowWindow(main_hwnd, nCmdShow); ShowWindow(tab_hwnd, SW_SHOW); ShowWindow(tab0_hwnd, SW_SHOW); UpdateWindow(main_hwnd); // Step 3: The Message Loop do{ PeekMessage(&msg, NULL, NULL, NULL, PM_REMOVE); /* Translate virtual-key messages into character messages */ TranslateMessage(&msg); /* Send message to WindowProcedure */ DispatchMessage(&msg); } while(msg.message!=WM_CLOSE && msg.message!=WM_QUIT); return msg.wParam; } 

我相信代码应该遵循的过程如下：1.创build主窗口main_hwnd 2.去WM_CREATE并运行这个代码3.在这期间，它创build了tab_hwnd ， tab0_hwnd ，…， tab4_hwnd 4.然后它返回winMain，并显示窗口。 之后它到达循环。