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我正在学习使用xlib,我无法获得XChangeProperty()
为我工作。XChangeProperty()总是失败
我有一个简单的程序,显示一个窗口成功。但拨打XChangeProperty()
始终会失败,错误代码为error 1 (BadRequest)
。
有人能告诉我我做错了什么吗?
这是我的代码来更改属性。
static void
change_prop(Display *display, Window window)
{
unsigned char some_text[40] = "hello world!";
int retval;
Atom my_atom;
my_atom = XInternAtom(display, "PERSONAL_PROPERTY", False);
if (my_atom == None)
{
printf("### failed to create atom with name PERSONAL_PROPERTY\n");
return;
}
retval = XChangeProperty(display, /* connection to x server */
window, /* window whose property we want to change */
my_atom, /* property name */
XA_STRING, /* type of property */
8, /* format of prop; can be 8, 16, 32 */
PropModeReplace,
some_text, /* actual data */
10 /* number of elements */
);
printf("###### XChangeProperty() reted %d\n", retval);
}