mirlua: crashfix:

	winapi:
		use dynamic buffer size for GetWindowTextW (enhancement)
		pass proper buffer size to GetWindowTextW (fix)

1 files changed, 4 insertions, 3 deletions

diff --git a/plugins/MirLua/Modules/WinAPI/src/winapi.cpp b/plugins/MirLua/Modules/WinAPI/src/winapi.cpp
index 2fe8f9f3b3..8ef0708d7d 100644..100755
--- a/plugins/MirLua/Modules/WinAPI/src/winapi.cpp
+++ b/plugins/MirLua/Modules/WinAPI/src/winapi.cpp
@@ -360,14 +360,15 @@ static int global_FindWindowEx(lua_State *L)
 static int global_GetWindowText(lua_State *L)

 {

 	const HWND hwnd = (HWND)luaM_checkhwnd(L, 1);

-

-	wchar_t buf[2048] = { 0 };

-	int res = GetWindowTextW(hwnd, buf, sizeof(buf));

+	int buf_size = GetWindowTextLengthW(hwnd);

+	wchar_t *buf = (wchar_t*)mir_alloc((buf_size + 1) * sizeof(wchar_t));

+	int res = GetWindowTextW(hwnd, buf, (buf_size + 1) * sizeof(wchar_t));

 

 	if (res > 0 || GetLastError() == ERROR_SUCCESS)

 		lua_pushstring(L, T2Utf(buf));

 	else

 		lua_pushnil(L);

+	mir_free(buf);

 

 	return 1;

 }