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时间: 2024-02-20 14:56:56 浏览: 109
好的,以下是窗口数据显示程序的C语言代码和一些注释和解释:
```c
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#define ID_LISTBOX 1001 // 定义列表框的ID号
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
TCHAR szAppName[] = TEXT("Data Display"); // 定义窗口的标题
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.style = CS_HREDRAW | CS_VREDRAW; // 定义窗口类的样式
wndclass.lpfnWndProc = WndProc; // 定义窗口处理函数
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); // 加载窗口图标
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); // 加载窗口光标
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); // 定义窗口背景色
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szAppName;
if (!RegisterClass(&wndclass)) // 注册窗口类,如果失败则弹出错误提示框并退出程序
{
MessageBox(NULL, TEXT("This program requires Windows NT!"), szAppName, MB_ICONERROR);
return 0;
}
hwnd = CreateWindow(szAppName, TEXT("Data Display"), WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL); // 创建窗口
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while (GetMessage(&msg, NULL, 0, 0)) // 处理消息循环
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static HWND hwndList;
static int cxChar, cyChar;
static TCHAR szBuffer[256];
int i;
switch (message)
{
case WM_CREATE:
cxChar = LOWORD(GetDialogBaseUnits()); // 获取对话框基本单位的宽度
cyChar = HIWORD(GetDialogBaseUnits()); // 获取对话框基本单位的高度
hwndList = CreateWindow(TEXT("listbox"), NULL, WS_CHILD | WS_VISIBLE | LBS_STANDARD,
cxChar, cyChar * 3, cxChar * 16 + GetSystemMetrics(SM_CXVSCROLL),
cyChar * 10, hwnd, (HMENU)ID_LISTBOX, (HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE), NULL); // 创建列表框
for (i = 0; i < 10; i++) // 向列表框中添加数据
{
sprintf(szBuffer, "Data %d", i);
SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)szBuffer);
}
break;
case WM_SIZE:
MoveWindow(hwndList, cxChar, cyChar * 3, LOWORD(lParam) - 2 * cxChar,
HIWORD(lParam) - cyChar * 3, TRUE); // 调整列表框的大小和位置
break;
case WM_SETFOCUS:
SetFocus(hwndList); // 设置列表框为焦点窗口
break;
case WM_DESTROY:
PostQuitMessage(0); // 退出程序
break;
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
```
这个程序创建了一个具有10个数据的列表框,可以通过窗口大小的调整进行自适应。注释和解释已经在代码中标注。
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