How do I know which characters are selected in the input field?

[AiLulu999]

How do I know which characters are selected in the input field?
Like the CEdit::GetSel function in Microsoft's MFC

[AiLulu999]

I have found the solution in the example provided by the official, a simple example is as follows.

char tmpStr[256]{};
ImGui::InputTextEx(u8"edit", 0, tmpStr, sizeof(tmpStr), ImVec2(0, 0), 0);
ImGuiWindow* window = ImGui::GetCurrentWindow();
if (window && window->SkipItems == false) {
	auto ID = window->GetID(u8"edit");
	auto state = ImGui::GetInputTextState(ID);
	if (state && state->HasSelection())
	{
		int start = state->GetSelectionStart();
		int end = state->GetSelectionEnd();
		ImGui::Text(u8"start = %d\tend = %d", start, end);
	}
}