Made it illegal to call Begin("") with an empty string. This somehow accidentally worked before but had various undesirable side-effect as the window would have ID zero. In particular it is causing problems in viewport/docking branches.
diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 350743c..e2ac095 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -37,6 +37,8 @@
- Renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges and removed its [Beta] mark.
The addition of new configuration options in the Docking branch is pushing for a little reorganization of those names.
+- Made it illegal to call Begin("") with an empty string. This somehow accidentally worked before but had various
+ undesirable side-effect as the window would have ID zero. In particular it is causing problems in viewport/docking branches.
Other Changes:
- Added BETA api for Tab Bar/Tabs widgets: (#261, #351)
diff --git a/imgui.cpp b/imgui.cpp
index 2aa675b..38a393e 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -4621,7 +4621,7 @@
{
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
- IM_ASSERT(name != NULL); // Window name required
+ IM_ASSERT(name != NULL && name[0] != '\0'); // Window name required
IM_ASSERT(g.FrameScopeActive); // Forgot to call ImGui::NewFrame()
IM_ASSERT(g.FrameCountEnded != g.FrameCount); // Called ImGui::Render() or ImGui::EndFrame() and haven't called ImGui::NewFrame() again yet
