feat(win32-api): user32 GetClassNameW()

packages/win32-api/src/lib/user32/dict/G.def.ts

@@ -21,8 +21,8 @@ export class DefUser32_G extends DefUser32_F {
   /** https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getclassinfoexw */
   static GetClassInfoExW = [D.BOOL, [D.HINSTANCE, [D.WString], `_Out_ ${S.LPWNDCLASSEXW}`]] as const
 
-  // /** https://learn.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-getclassnamew */
-  // static GetClassNameW = [D.INT, [D.HWND, D.LPTSTR, D.INT]]
+  /** https://learn.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-getclassnamew */
+  static GetClassNameW = [D.INT, [D.HWND, D.LPTSTR, D.INT]]
 
   /** https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getcursorpos */
   static GetCursorPos = [D.BOOL, [`_Out_ ${S.LPPOINT}`]]

packages/win32-api/src/lib/user32/dict/G.types.ts

@@ -27,6 +27,10 @@ export class User32_G extends User32_F {
   /** https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getclassinfoexw */
   GetClassInfoExW: (hinst: T.HINSTANCE, lpszClass: T.LPCTSTR, LPWNDCLASSEX: S.WNDCLASSEXW_Type) => T.BOOL
 
+
+  /** https://learn.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-getclassnamew */
+  GetClassNameW: (hWnd: T.HWND, lpClassName: T.LPTSTR, nMaxCount: T.INT) => T.INT
+
   /** https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getcursorpos */
   GetCursorPos: (lpPoint: S.POINT_Type) => T.BOOL
 

packages/win32-api/test/lib/user32/1002.GetClassNameW.test.ts

@@ -0,0 +1,43 @@
+import assert from 'node:assert/strict'
+import { spawn } from 'node:child_process'
+
+import { fileShortPath, sleep } from '@waiting/shared-core'
+import { ucsBufferFrom, ucsBufferToString } from 'win32-def'
+import { WNDCLASSEXW_Factory } from 'win32-def/struct'
+import type { WNDCLASSEXW_Type } from 'win32-def/struct'
+
+import { User32 as Lib, Kernel32 } from '##/index.js'
+import { FindWindowEx } from '##/index.util.js'
+
+
+describe(fileShortPath(import.meta.url), () => {
+  const lib = Lib.load()
+  assert(lib)
+  const libKnl = Kernel32.load()
+  assert(libKnl)
+  const hModule = libKnl.GetModuleHandleW(null)
+  assert(hModule)
+
+  describe('GetClassNameW()', () => {
+    it('normal', async () => {
+      const child = spawn('notepad.exe')
+
+      try {
+        await sleep(1500)
+        const hwnd = await FindWindowEx(0, 0, 'Notepad', null)
+        assert(hwnd)
+
+        const buf = Buffer.alloc(1024)
+        const ret = lib.GetClassNameW(hwnd, buf, 256)
+        assert(ret)
+        const text = ucsBufferToString(buf)
+        assert(text === 'Notepad')
+      }
+      finally {
+        child.kill()
+      }
+    })
+  })
+
+})
+