Add EnumDesktopWindows && stuff (mhammond#2219)

CHANGES.txt

@@ -15,6 +15,7 @@ Coming in build 307, as yet unreleased
 --------------------------------------
 
 ### pywin32
+* Add EnumDesktopWindows (#2219, @CristiFati)
 * Marked `exc_type` and `exc_traceback` in `win32comext.axscript.client.error.AXScriptException.__init__` as deprecated.
   They are now unused and all information is taken from the `exc_value` parameter.
 * Fixed non-overriden `pywin.scintilla.formatter.Formatter.ColorizeString` raising `TypeError` instead of `RuntimeError` due to too many parameters (#2216, @Avasam)

win32/src/win32gui.i

@@ -2003,23 +2003,23 @@ BOOL CALLBACK PyEnumWindowsProc(
   HWND hwnd,      // handle to parent window
   LPARAM lParam   // application-defined value
 ) {
-	BOOL result = TRUE;
-	PyEnumWindowsCallback *cb = (PyEnumWindowsCallback *)lParam;
-	CEnterLeavePython _celp;
-	PyObject *args = Py_BuildValue("(NO)", PyWinLong_FromHANDLE(hwnd), cb->extra);
-	if (args == NULL)
-		return FALSE;
-	PyObject *ret = PyObject_CallObject(cb->func, args);
-	Py_DECREF(args);
-	if (ret == NULL)
-		return FALSE;
-	if (ret != Py_None){
-		result = PyLong_AsLong(ret);
-		if (result == -1 && PyErr_Occurred())
-			result = FALSE;
-		}
-	Py_DECREF(ret);
-	return result;
+    BOOL result = TRUE;
+    PyEnumWindowsCallback *cb = (PyEnumWindowsCallback *)lParam;
+    CEnterLeavePython _celp;
+    PyObject *args = Py_BuildValue("(NO)", PyWinLong_FromHANDLE(hwnd), cb->extra);
+    if (args == NULL)
+        return FALSE;
+    PyObject *ret = PyObject_CallObject(cb->func, args);
+    Py_DECREF(args);
+    if (ret == NULL)
+        return FALSE;
+    if (ret != Py_None) {
+        result = PyLong_AsLong(ret);
+        if ((result == -1) && (PyErr_Occurred()))
+            result = FALSE;
+    }
+    Py_DECREF(ret);
+    return result;
 }
 
 // @pyswig |EnumWindows|Enumerates all top-level windows on the screen by passing the handle to each window, in turn, to an application-defined callback function.