c - 运行 GTK+ 应用程序时出现 X 错误

Question

我编写了一个 GTK+ 应用程序，但在运行它时遇到以下 X Window 错误:

    The program 'TestApp' received an X Window System error.    This probably reflects a bug in the program.    The error was 'BadMatch (invalid parameter attributes)'.      (Details: serial 222 error_code 8 request_code 2 minor_code 0)      (Note to programmers: normally, X errors are reported asynchronously;       that is, you will receive the error a while after causing it.       To debug your program, run it with the --sync command line       option to change this behavior. You can then get a meaningful       backtrace from your debugger if you break on the gdk_x_error() function.)

导致此错误的原因可能是什么？我用 C 语言编写了这个应用程序。

Answer 1

我会尝试按照建议进行操作:使用 --sync cmd 选项运行应用程序并在调试器中启动它，这样您就可以看到哪一行导致了错误。