win32创建工具栏的自定义图标
Posted strive-sun
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了win32创建工具栏的自定义图标相关的知识,希望对你有一定的参考价值。
注意点:使用LoadImage函数加载bmp图片,这里特指BMP图片,其实LoadImage可以加载很多格式的图片
HBITMAP bitmap = (HBITMAP)LoadImage((HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE), MAKEINTRESOURCE(IDB_LIST), IMAGE_BITMAP, 32, 32, NULL);
LoadImage的第一个参数是实例句柄,我在测试的时候,如果设为NULL或者父窗口的实例句柄hInstance,会报1814错误,错误信息: ERROR_RESOURCE_NAME_NOT_FOUND, 我将参数改为上面给出的即可成功加载。
IDB_LIST是资源图片的宏定义,需要事先将图片加载到资源文件里。
也可以直接用
HBITMAP bitmap = (HBITMAP)LoadImage(NULL, L"C:\\Users\\strives\\Desktop\\panda.bmp", IMAGE_BITMAP, 32, 32, LR_LOADFROMFILE);
这里是从本地文件中加载的图片,最后一个参数一定要改成LR_LOADFROMFILE
全部代码:
// WindowsProject42.cpp : Defines the entry point for the application. // #include "stdafx.h" #include "WindowsProject42.h" #include <commctrl.h> #pragma comment (lib,"Comctl32.lib") #define MAX_LOADSTRING 100 #define IDC_MAIN_TOOL 102 #define ID_FILE_NEW 103 // Global Variables: HINSTANCE g_hInst; // current instance WCHAR szTitle[MAX_LOADSTRING]; // The title bar text WCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name HWND hToolBar; //TBBUTTON tbb[1]; //TBADDBITMAP tbab; // Forward declarations of functions included in this code module: ATOM MyRegisterClass(HINSTANCE hInstance); BOOL InitInstance(HINSTANCE, int); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM); HWND CreateSimpleToolbar(HWND hWndParent); HIMAGELIST g_hImageList = NULL; int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPWSTR lpCmdLine, _In_ int nCmdShow) { UNREFERENCED_PARAMETER(hPrevInstance); UNREFERENCED_PARAMETER(lpCmdLine); // TODO: Place code here. // Initialize global strings LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadStringW(hInstance, IDC_WINDOWSPROJECT42, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); // Perform application initialization: if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINDOWSPROJECT42)); MSG msg; // Main message loop: while (GetMessage(&msg, nullptr, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } // // FUNCTION: MyRegisterClass() // // PURPOSE: Registers the window class. // ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEXW wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = CS_HREDRAW | CS_VREDRAW; wcex.lpfnWndProc = WndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WINDOWSPROJECT42)); wcex.hCursor = LoadCursor(nullptr, IDC_ARROW); wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wcex.lpszMenuName = MAKEINTRESOURCEW(IDC_WINDOWSPROJECT42); wcex.lpszClassName = szWindowClass; wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); return RegisterClassExW(&wcex); } // // FUNCTION: InitInstance(HINSTANCE, int) // // PURPOSE: Saves instance handle and creates main window // // COMMENTS: // // In this function, we save the instance handle in a global variable and // create and display the main program window. // BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { g_hInst = hInstance; // Store instance handle in our global variable HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr); CreateSimpleToolbar(hWnd); if (!hWnd) { return FALSE; } ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } // // FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM) // // PURPOSE: Processes messages for the main window. // // WM_COMMAND - process the application menu // WM_PAINT - Paint the main window // WM_DESTROY - post a quit message and return // // LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch (message) { case WM_COMMAND: { int wmId = LOWORD(wParam); // Parse the menu selections: switch (wmId) { case IDM_ABOUT: DialogBox(g_hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } } break; case WM_PAINT: { PAINTSTRUCT ps; HDC hdc = BeginPaint(hWnd, &ps); // TODO: Add any drawing code that uses hdc here... EndPaint(hWnd, &ps); } break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // Message handler for about box. INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { UNREFERENCED_PARAMETER(lParam); switch (message) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return (INT_PTR)TRUE; } break; } return (INT_PTR)FALSE; } HWND CreateSimpleToolbar(HWND hWnd) { TBBUTTON tbb[1]; TBADDBITMAP tbab; const int bitmapSize = 32; const int ImageListID = 0; hToolBar = CreateWindowEx(TBSTYLE_EX_MIXEDBUTTONS, TOOLBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE | TBSTYLE_TOOLTIPS | TBSTYLE_WRAPABLE, 0, 0, 0, 0, hWnd, NULL, g_hInst, NULL); HBITMAP bitmap = (HBITMAP)LoadImage((HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE), MAKEINTRESOURCE(IDB_LIST), IMAGE_BITMAP, 32, 32, NULL); SendMessage(hToolBar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0); ZeroMemory(&tbb, sizeof(tbb)); tbb[0].iBitmap = 0; tbb[0].fsState = TBSTATE_ENABLED; tbb[0].fsStyle = TBSTYLE_BUTTON; tbb[0].idCommand = ID_FILE_NEW; tbb[0].iString = (INT_PTR)L"Create a new file"; g_hImageList = ImageList_Create(bitmapSize, bitmapSize, // Dimensions of individual bitmaps. ILC_COLOR24 | ILC_MASK, // Ensures transparent background. 1, 0); ImageList_Add(g_hImageList, bitmap, NULL); SendMessage(hToolBar, TB_SETIMAGELIST, (WPARAM)ImageListID, (LPARAM)g_hImageList); LRESULT I = SendMessage(hToolBar, TB_ADDBUTTONS, sizeof(tbb) / sizeof(TBBUTTON), (LPARAM)&tbb); SendMessage(hToolBar, TB_AUTOSIZE, 0, 0); return hToolBar; }
Debug :
简单介绍下主要函数的调用:
使用ImageList_Create()创建图像列表,再使用ImageList_Add()将
BMP图像添加到其中,或者使用ImageList_ReplaceIcon()
工具栏将其关联TB_SETIMAGELIST
,然后使tbb[0].iBitmap
在图像列表中设置为BMP的索引。
更为细节的可以参阅MSDN的官方案例:https://docs.microsoft.com/en-us/windows/win32/controls/create-toolbars
里面介绍了使用标准系统图标创建插图中显示的工具栏。
以上是关于win32创建工具栏的自定义图标的主要内容,如果未能解决你的问题,请参考以下文章