win32-api/dist/util/user32/GetWindowText.js

FFI definitions of windows win32 api for node-ffi

import assert from 'node:assert';
import { ucsBufferToString } from 'win32-def';
import { load } from '../../lib/user32/index.js';
const fnName = 'GetWindowTextW';
const fnAsyncName = 'GetWindowTextW_Async';
/**
 * Retrieves a handle to a window whose class name and window name match the specified strings.
 * The function searches child windows, beginning with the one following the specified child window.
 * This function does not perform a case-sensitive search.
 * @link https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getwindowtextw
 *
 * 检索其类名和窗口名称与指定字符串匹配的窗口的句柄。 函数搜索子窗口，从指定子窗口后面的子窗口开始。 此函数不执行区分大小写的搜索。
 * @link https://learn.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-getwindowtextw
 */
export async function GetWindowText(hWnd, nMaxCount) {
    const lib = load([fnName]);
    const fn = lib[fnAsyncName];
    assert(typeof fn === 'function', `Function "${fnAsyncName}" not found`);
    const buf = Buffer.alloc(nMaxCount * 2);
    const resLength = await fn(hWnd, buf, nMaxCount);
    const len2 = Math.min(resLength, nMaxCount - 1);
    const title = ucsBufferToString(buf, len2);
    return title || '';
}
//# sourceMappingURL=GetWindowText.js.map