fix osx arrow keys bug

2019-01-30 11:18:52 +01:00
parent 56fa1079c6
commit 08490b248e
1 changed files with 2 additions and 1 deletions
--- a/PanoPainter-OSX/main.cpp
+++ b/PanoPainter-OSX/main.cpp
@@ -385,7 +385,8 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
 {
    auto keyCode = [theEvent keyCode];
    auto chars = [theEvent characters];
-    std::string s = [chars cStringUsingEncoding:NSASCIIStringEncoding];
+    const char* c_str = [chars cStringUsingEncoding:NSASCIIStringEncoding];
+    std::string s = c_str ? c_str : "";
    std::lock_guard<std::mutex> lock(task_mutex);
    tasklist.emplace_back([keyCode, s] {
        if (App::I.keys[(int)kKey::KeyCtrl])