# Mouse Pointer Error Codes > **NOTE** > > This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). ## 26500001 Invalid Window ID **Error Message** Invalid windowId. Possible causes: The window id does not belong to the current process. **Description** This error code is reported if the window ID is invalid. **Possible Causes** The window ID does not belong to the current process. **Solution** Pass in the window ID of the current process. You can obtain the attributes of the current window by calling [getWindowProperties()](../apis-arkui/arkts-apis-window-Window.md#getwindowproperties9). The window ID is contained in the returned window attributes.