diff options
| -rw-r--r-- | src/x11/mod.rs | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/x11/mod.rs b/src/x11/mod.rs index 9103ea2..4088f29 100644 --- a/src/x11/mod.rs +++ b/src/x11/mod.rs @@ -144,7 +144,13 @@ impl Window { // creating the dummy context let dummy_context = ffi::glXCreateContext(display, &visual_infos, ptr::null(), 1); - ffi::glXMakeCurrent(display, window, dummy_context); + if dummy_context.is_null() { + return Err(format!("glXCreateContext failed")); + } + + if ffi::glXMakeCurrent(display, window, dummy_context) == 0 { + return Err(format!("glXMakeCurrent with dummy context failed")); + } // getting the pointer let fn_ptr = { |