Method BeginChildEx

KBotExt/imgui/imgui.cpp:5358–5411

}

bool ImGui::BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags flags)
{
	ImGuiContext& g = *GImGui;
	ImGuiWindow* parent_window = g.CurrentWindow;

	flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_ChildWindow;
	flags |= (parent_window->Flags & ImGuiWindowFlags_NoMove);  // Inherit the NoMove flag

	// Size
	const ImVec2 content_avail = GetContentRegionAvail();
	ImVec2 size = ImFloor(size_arg);
	const int auto_fit_axises = ((size.x == 0.0f) ? (1 << ImGuiAxis_X) : 0x00) | ((size.y == 0.0f) ? (1 << ImGuiAxis_Y) : 0x00);
	if (size.x <= 0.0f)
		size.x = ImMax(content_avail.x + size.x, 4.0f); // Arbitrary minimum child size (0.0f causing too many issues)
	if (size.y <= 0.0f)
		size.y = ImMax(content_avail.y + size.y, 4.0f);
	SetNextWindowSize(size);

	// Build up name. If you need to append to a same child from multiple location in the ID stack, use BeginChild(ImGuiID id) with a stable value.
	const char* temp_window_name;
	if (name)
		ImFormatStringToTempBuffer(&temp_window_name, NULL, "%s/%s_%08X", parent_window->Name, name, id);
	else
		ImFormatStringToTempBuffer(&temp_window_name, NULL, "%s/%08X", parent_window->Name, id);

	const float backup_border_size = g.Style.ChildBorderSize;
	if (!border)
		g.Style.ChildBorderSize = 0.0f;
	bool ret = Begin(temp_window_name, NULL, flags);
	g.Style.ChildBorderSize = backup_border_size;

	ImGuiWindow* child_window = g.CurrentWindow;
	child_window->ChildId = id;
	child_window->AutoFitChildAxises = (ImS8)auto_fit_axises;

	// Set the cursor to handle case where the user called SetNextWindowPos()+BeginChild() manually.
	// While this is not really documented/defined, it seems that the expected thing to do.
	if (child_window->BeginCount == 1)
		parent_window->DC.CursorPos = child_window->Pos;

	// Process navigation-in immediately so NavInit can run on first frame
	// Can enter a child if (A) it has navigatable items or (B) it can be scrolled.
	const ImGuiID temp_id_for_activation = ImHashStr("##Child", 0, id);
	if (g.ActiveId == temp_id_for_activation)
		ClearActiveID();
	if (g.NavActivateId == id && !(flags & ImGuiWindowFlags_NavFlattened) && (child_window->DC.NavLayersActiveMask != 0 || child_window->DC.NavWindowHasScrollY))
	{
		FocusWindow(child_window);
		NavInitWindow(child_window, false);
		SetActiveID(temp_id_for_activation, child_window); // Steal ActiveId with another arbitrary id so that key-press won't activate child item
		g.ActiveIdSource = g.NavInputSource;
	}
	return ret;
}

bool ImGui::BeginChild(const char* str_id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)
{