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-rw-r--r--src/api/wgl/mod.rs4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/api/wgl/mod.rs b/src/api/wgl/mod.rs
index ee8aa3b..55fd22a 100644
--- a/src/api/wgl/mod.rs
+++ b/src/api/wgl/mod.rs
@@ -132,9 +132,7 @@ impl Context {
// handling vsync
if builder.vsync {
- // contrary to most extensions, it is permitted to discover the presence of
- // `WGL_EXT_swap_control` by seeing if the function pointer is available
- if extra_functions.SwapIntervalEXT.is_loaded() {
+ if extensions.split(' ').find(|&i| i == "WGL_EXT_swap_control").is_some() {
let _guard = try!(CurrentContextGuard::make_current(hdc, context.0));
if extra_functions.SwapIntervalEXT(1) == 0 {