#define LEFT_BUTTON_WIDTH 145 #define RIGHT_BUTTON_WIDTH 60 #define BUTTON_HEIGHT 40

你好！你的第一个问题是关于宏定义的。这里给出了三个宏定义：

- `LEFT_BUTTON_WIDTH` 定义为 145
- `RIGHT_BUTTON_WIDTH` 定义为 60
- `BUTTON_HEIGHT` 定义为 40

这些宏定义可以用于在代码中指定按钮的宽度和高度。使用宏定义可以提高代码的可读性和可维护性，因为可以通过修改宏定义来一次性修改所有使用该宏定义的地方。

相关问题

用WIN API创建一个带edit文本框的窗口程序,并且edit文本框大小跟随窗口变化,窗口下部有"submit"和"quit"按钮,附上"submit"和"quit"按钮的单击回调, 其中单击"quit"按钮退出程序,改变窗口大小时需要重绘,所有字符串加L修饰,字符串类型要保持正确

好的，我可以为你提供一个简单的示例程序，该程序创建一个带有自适应大小编辑框和“提交”、“退出”按钮的窗口，并且有对应的回调函数。

首先，我们需要包含一些头文件：

#include <Windows.h>
#include <wchar.h>

然后，我们需要定义一些常量：

#define WINDOW_CLASS_NAME L"MyWindowClass"
#define WINDOW_TITLE L"My Window"
#define WINDOW_WIDTH 640
#define WINDOW_HEIGHT 480
#define BUTTON_WIDTH 100
#define BUTTON_HEIGHT 30
#define EDIT_WIDTH 400
#define EDIT_HEIGHT 200
#define EDIT_PADDING 10
#define ID_EDIT 100
#define ID_SUBMIT 101
#define ID_QUIT 102

接下来，我们需要定义一些全局变量：

HWND g_hEdit;
HWND g_hSubmit;
HWND g_hQuit;

然后，我们需要定义窗口过程函数：

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
    case WM_CREATE:
        // 创建编辑框
        g_hEdit = CreateWindowExW(
            0,
            L"EDIT",
            L"",
            WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL,
            EDIT_PADDING,
            EDIT_PADDING,
            EDIT_WIDTH,
            EDIT_HEIGHT,
            hwnd,
            (HMENU)ID_EDIT,
            GetModuleHandleW(NULL),
            NULL
        );
        // 创建提交按钮
        g_hSubmit = CreateWindowExW(
            0,
            L"BUTTON",
            L"Submit",
            WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
            WINDOW_WIDTH / 2 - BUTTON_WIDTH - 10,
            WINDOW_HEIGHT - BUTTON_HEIGHT - 10,
            BUTTON_WIDTH,
            BUTTON_HEIGHT,
            hwnd,
            (HMENU)ID_SUBMIT,
            GetModuleHandleW(NULL),
            NULL
        );
        // 创建退出按钮
        g_hQuit = CreateWindowExW(
            0,
            L"BUTTON",
            L"Quit",
            WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
            WINDOW_WIDTH / 2 + 10,
            WINDOW_HEIGHT - BUTTON_HEIGHT - 10,
            BUTTON_WIDTH,
            BUTTON_HEIGHT,
            hwnd,
            (HMENU)ID_QUIT,
            GetModuleHandleW(NULL),
            NULL
        );
        break;
    case WM_SIZE:
        // 重新布局窗口控件
        MoveWindow(g_hEdit, EDIT_PADDING, EDIT_PADDING, LOWORD(lParam) - 2 * EDIT_PADDING, HIWORD(lParam) - 3 * BUTTON_HEIGHT - 4 * EDIT_PADDING, TRUE);
        MoveWindow(g_hSubmit, LOWORD(lParam) / 2 - BUTTON_WIDTH - 10, HIWORD(lParam) - BUTTON_HEIGHT - 10, BUTTON_WIDTH, BUTTON_HEIGHT, TRUE);
        MoveWindow(g_hQuit, LOWORD(lParam) / 2 + 10, HIWORD(lParam) - BUTTON_HEIGHT - 10, BUTTON_WIDTH, BUTTON_HEIGHT, TRUE);
        break;
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case ID_SUBMIT:
            // 提交按钮被单击
            // 在这里添加提交按钮的单击回调代码
            break;
        case ID_QUIT:
            // 退出按钮被单击
            PostQuitMessage(0);
            break;
        }
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProcW(hwnd, uMsg, wParam, lParam);
    }
    return 0;
}

最后，我们需要定义WinMain函数：

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow)
{
    // 注册窗口类
    WNDCLASSEXW wcex = { 0 };
    wcex.cbSize = sizeof(WNDCLASSEXW);
    wcex.style = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc = WindowProc;
    wcex.cbClsExtra = 0;
    wcex.cbWndExtra = 0;
    wcex.hInstance = hInstance;
    wcex.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wcex.lpszMenuName = NULL;
    wcex.lpszClassName = WINDOW_CLASS_NAME;
    wcex.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    if (!RegisterClassExW(&wcex))
    {
        return 0;
    }

    // 创建窗口
    HWND hwnd = CreateWindowExW(
        0,
        WINDOW_CLASS_NAME,
        WINDOW_TITLE,
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT,
        WINDOW_WIDTH, WINDOW_HEIGHT,
        NULL,
        NULL,
        hInstance,
        NULL
    );
    if (!hwnd)
    {
        return 0;
    }

    // 显示窗口
    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    // 消息循环
    MSG msg;
    while (GetMessageW(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessageW(&msg);
    }

    return (int)msg.wParam;
}

现在，我们就完成了一个简单的带有自适应大小编辑框和“提交”、“退出”按钮的窗口程序。你可以在提交按钮的单击回调函数中添加你自己的代码。

用hal库写一个具有页面登陆功能的单片机程序（stm32f407ZGTX）

这里是一个简单的示例程序，使用HAL库和STM32F407ZGTX单片机，实现了一个基本的页面登录功能。

首先，在Keil MDK中创建一个新工程，选择STM32F407ZGTX芯片，然后将HAL库添加到工程中。

接下来，创建一个文件夹来存放用户界面文件，例如“GUI”。在该文件夹中创建一个名为“login.h”的头文件。该文件包含用于登录屏幕的所有控件和变量。

#ifndef __LOGIN_H
#define __LOGIN_H

#include "stm32f4xx_hal.h"
#include "stm32f4xx_hal_gpio.h"
#include "stm32f4xx_hal_lcd.h"
#include "stm32f4xx_hal_uart.h"

#define LCD_WIDTH 240
#define LCD_HEIGHT 320

typedef struct {
  uint16_t x;
  uint16_t y;
  uint16_t w;
  uint16_t h;
} rect_t;

typedef struct {
  rect_t rect;
  uint32_t color;
  uint8_t *text;
  uint16_t text_len;
  uint8_t font_size;
} button_t;

typedef struct {
  rect_t rect;
  uint32_t color;
  uint8_t *text;
  uint16_t text_len;
  uint8_t font_size;
  uint8_t is_password;
  uint8_t *input_text;
  uint16_t max_len;
} text_box_t;

typedef struct {
  uint32_t background_color;
  uint32_t foreground_color;
  uint8_t font_size;
  uint8_t *title;
  uint16_t title_len;
} login_screen_t;

void gui_draw_button(button_t *button);
void gui_draw_text_box(text_box_t *text_box);
void gui_draw_login_screen(login_screen_t *login_screen);

#endif /* __LOGIN_H */

然后，创建一个名为“login.c”的源文件，该文件包含用于绘制控件和处理用户输入的代码。

#include "login.h"

#define UART_HANDLE huart1
#define LCD_HANDLE hlcd

#define BACKGROUND_COLOR LCD_COLOR_WHITE
#define FOREGROUND_COLOR LCD_COLOR_BLACK
#define FONT_SIZE 16

#define BUTTON_COLOR LCD_COLOR_LIGHTGRAY
#define BUTTON_TEXT_COLOR LCD_COLOR_BLACK
#define BUTTON_FONT_SIZE 14

#define TEXT_BOX_COLOR LCD_COLOR_WHITE
#define TEXT_BOX_TEXT_COLOR LCD_COLOR_BLACK
#define TEXT_BOX_FONT_SIZE 14
#define TEXT_BOX_MAX_LEN 20

static void gui_draw_rect(rect_t *rect, uint32_t color) {
  for (uint16_t i = rect->x; i < rect->x + rect->w; i++) {
    for (uint16_t j = rect->y; j < rect->y + rect->h; j++) {
      BSP_LCD_DrawPixel(i, j, color);
    }
  }
}

void gui_draw_button(button_t *button) {
  gui_draw_rect(&button->rect, button->color);
  BSP_LCD_SetBackColor(button->color);
  BSP_LCD_SetTextColor(BUTTON_TEXT_COLOR);
  BSP_LCD_SetFont(&Font16);
  BSP_LCD_DisplayStringAt(button->rect.x + 10, button->rect.y + 10, button->text, LEFT_MODE);
}

void gui_draw_text_box(text_box_t *text_box) {
  gui_draw_rect(&text_box->rect, text_box->color);
  BSP_LCD_SetBackColor(text_box->color);
  BSP_LCD_SetTextColor(TEXT_BOX_TEXT_COLOR);
  BSP_LCD_SetFont(&Font16);
  if (text_box->is_password) {
    char password[text_box->text_len];
    memset(password, '*', text_box->text_len);
    BSP_LCD_DisplayStringAt(text_box->rect.x + 10, text_box->rect.y + 10, password, LEFT_MODE);
  } else {
    BSP_LCD_DisplayStringAt(text_box->rect.x + 10, text_box->rect.y + 10, text_box->input_text, LEFT_MODE);
  }
}

void gui_draw_login_screen(login_screen_t *login_screen) {
  BSP_LCD_Clear(login_screen->background_color);
  BSP_LCD_SetBackColor(login_screen->background_color);
  BSP_LCD_SetTextColor(login_screen->foreground_color);
  BSP_LCD_SetFont(&Font20);
  BSP_LCD_DisplayStringAt(0, 10, login_screen->title, CENTER_MODE);
}

void gui_enter_text(text_box_t *text_box) {
  uint8_t input;
  uint16_t len = strlen((const char *)text_box->input_text);
  while (len < text_box->max_len) {
    if (HAL_UART_Receive(&UART_HANDLE, &input, 1, 1000) == HAL_OK) {
      if (input == '\r' || input == '\n') {
        break;
      }
      text_box->input_text[len++] = input;
      gui_draw_text_box(text_box);
    }
  }
}

uint8_t gui_check_password(text_box_t *text_box, uint8_t *password, uint16_t password_len) {
  if (strlen((const char *)text_box->input_text) != password_len) {
    return 0;
  }
  for (uint16_t i = 0; i < password_len; i++) {
    if (text_box->input_text[i] != password[i]) {
      return 0;
    }
  }
  return 1;
}

void login_screen() {
  login_screen_t login_screen = {
    .background_color = BACKGROUND_COLOR,
    .foreground_color = FOREGROUND_COLOR,
    .font_size = FONT_SIZE,
    .title = (uint8_t *)"Login Screen",
    .title_len = strlen("Login Screen")
  };
  gui_draw_login_screen(&login_screen);

  text_box_t username_text_box = {
    .rect = {
      .x = 30,
      .y = 100,
      .w = 180,
      .h = 30
    },
    .color = TEXT_BOX_COLOR,
    .text = (uint8_t *)"Username:",
    .text_len = strlen("Username:"),
    .font_size = TEXT_BOX_FONT_SIZE,
    .is_password = 0,
    .input_text = (uint8_t *)calloc(TEXT_BOX_MAX_LEN, sizeof(uint8_t)),
    .max_len = TEXT_BOX_MAX_LEN
  };
  gui_draw_text_box(&username_text_box);
  gui_enter_text(&username_text_box);

  text_box_t password_text_box = {
    .rect = {
      .x = 30,
      .y = 150,
      .w = 180,
      .h = 30
    },
    .color = TEXT_BOX_COLOR,
    .text = (uint8_t *)"Password:",
    .text_len = strlen("Password:"),
    .font_size = TEXT_BOX_FONT_SIZE,
    .is_password = 1,
    .input_text = (uint8_t *)calloc(TEXT_BOX_MAX_LEN, sizeof(uint8_t)),
    .max_len = TEXT_BOX_MAX_LEN
  };
  gui_draw_text_box(&password_text_box);
  gui_enter_text(&password_text_box);

  button_t login_button = {
    .rect = {
      .x = 80,
      .y = 200,
      .w = 80,
      .h = 30
    },
    .color = BUTTON_COLOR,
    .text = (uint8_t *)"Login",
    .text_len = strlen("Login"),
    .font_size = BUTTON_FONT_SIZE
  };
  gui_draw_button(&login_button);

  uint8_t password[] = "password";
  if (gui_check_password(&password_text_box, password, strlen((const char *)password))) {
    BSP_LCD_DisplayStringAt(0, 250, (uint8_t *)"Welcome!", CENTER_MODE);
  } else {
    BSP_LCD_DisplayStringAt(0, 250, (uint8_t *)"Invalid password", CENTER_MODE);
  }

  free(username_text_box.input_text);
  free(password_text_box.input_text);
}

int main(void) {
  HAL_Init();
  BSP_LCD_Init();
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_SelectLayer(0);
  BSP_LCD_DisplayOn();
  BSP_LCD_Clear(LCD_COLOR_WHITE);
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
  BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
  BSP_LCD_SetFont(&Font16);
  BSP_UART_Init();
  login_screen();
  while (1) {}
}

该程序使用了STM32F4的HAL库和BSP库，以及LCD和UART的驱动程序。它通过调用GUI函数来绘制控件，并通过UART接收用户输入。它还提供了一个函数来检查密码是否正确，并在LCD上显示欢迎消息或错误消息。

请注意，这只是示例代码，您需要根据您的具体要求进行修改。