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win32_proj.cpp
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// WindowsProject3.cpp : 定义应用程序的入口点。 | |
// | |
#include "framework.h" | |
#include "WindowsProject3.h" | |
#define MAX_LOADSTRING 100 | |
// 全局变量: | |
HINSTANCE hInst; // 当前实例 | |
WCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本 | |
WCHAR szWindowClass[MAX_LOADSTRING]; // 主窗口类名 | |
// 此代码模块中包含的函数的前向声明: | |
ATOM MyRegisterClass(HINSTANCE hInstance); | |
BOOL InitInstance(HINSTANCE, int); | |
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); | |
INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM); | |
int APIENTRY wWinMain(_In_ HINSTANCE hInstance, | |
_In_opt_ HINSTANCE hPrevInstance, | |
_In_ LPWSTR lpCmdLine, | |
_In_ int nCmdShow) | |
{ | |
UNREFERENCED_PARAMETER(hPrevInstance); | |
UNREFERENCED_PARAMETER(lpCmdLine); | |
// TODO: 在此处放置代码。 | |
// 初始化全局字符串 | |
LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); | |
LoadStringW(hInstance, IDC_WINDOWSPROJECT3, szWindowClass, MAX_LOADSTRING); | |
MyRegisterClass(hInstance); | |
// 执行应用程序初始化: | |
if (!InitInstance (hInstance, nCmdShow)) | |
{ | |
return FALSE; | |
} | |
HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINDOWSPROJECT3)); | |
MSG msg; | |
// 主消息循环: | |
while (GetMessage(&msg, nullptr, 0, 0)) | |
{ | |
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) | |
{ | |
TranslateMessage(&msg); | |
DispatchMessage(&msg); | |
} | |
} | |
return (int) msg.wParam; | |
} | |
// | |
// 函数: MyRegisterClass() | |
// | |
// 目标: 注册窗口类。 | |
// | |
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_WINDOWSPROJECT3)); | |
wcex.hCursor = LoadCursor(nullptr, IDC_ARROW); | |
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); | |
wcex.lpszMenuName = MAKEINTRESOURCEW(IDC_WINDOWSPROJECT3); | |
wcex.lpszClassName = szWindowClass; | |
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); | |
return RegisterClassExW(&wcex); | |
} | |
// | |
// 函数: InitInstance(HINSTANCE, int) | |
// | |
// 目标: 保存实例句柄并创建主窗口 | |
// | |
// 注释: | |
// | |
// 在此函数中,我们在全局变量中保存实例句柄并 | |
// 创建和显示主程序窗口。 | |
// | |
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) | |
{ | |
hInst = hInstance; // 将实例句柄存储在全局变量中 | |
HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, | |
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr); | |
if (!hWnd) | |
{ | |
return FALSE; | |
} | |
ShowWindow(hWnd, nCmdShow); | |
UpdateWindow(hWnd); | |
return TRUE; | |
} | |
// | |
// 函数: WndProc(HWND, UINT, WPARAM, LPARAM) | |
// | |
// 目标: 处理主窗口的消息。 | |
// | |
// WM_COMMAND - 处理应用程序菜单 | |
// WM_PAINT - 绘制主窗口 | |
// WM_DESTROY - 发送退出消息并返回 | |
// | |
// | |
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) | |
{ | |
switch (message) | |
{ | |
case WM_COMMAND: | |
{ | |
int wmId = LOWORD(wParam); | |
// 分析菜单选择: | |
switch (wmId) | |
{ | |
case IDM_ABOUT: | |
DialogBox(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: 在此处添加使用 hdc 的任何绘图代码... | |
EndPaint(hWnd, &ps); | |
} | |
break; | |
case WM_DESTROY: | |
PostQuitMessage(0); | |
break; | |
default: | |
return DefWindowProc(hWnd, message, wParam, lParam); | |
} | |
return 0; | |
} | |
// “关于”框的消息处理程序。 | |
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; | |
} |
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