From 75456420564e6b92050e9ba51fd558883fcd0e7d Mon Sep 17 00:00:00 2001
From: omar <ocornut@users.noreply.github.com>
Date: Sun, 15 Nov 2015 22:42:33 +0100
Subject: [PATCH] Created Tips (markdown)

---
 Tips.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Tips.md

diff --git a/Tips.md b/Tips.md
new file mode 100644
index 0000000..2d9ec31
--- /dev/null
+++ b/Tips.md
@@ -0,0 +1,15 @@
+**Tip: use Begin/BeginChild to put yourself into the context of another window prior or after outputting to it**<br>
+https://github.com/ocornut/imgui/issues/270
+
+An interesting trick that isn't obvious is that you can use Begin() just to put yourself into the context of that window. So here I want to react to the user inputting an address to scroll to, I use BeginChild() again on the child that I've already drawn so I can use SetScrollFromPosY() on it.
+
+```
+ImGui::BeginChild("##scrolling", ImVec2(0, -ImGui::GetItemsLineHeightWithSpacing()));
+// ...(draw main content)
+ImGui::EndChild();
+
+// And then much later in the main window, get back into child context to change scrolling offset
+ImGui::BeginChild("##scrolling");
+ImGui::SetScrollFromPosY(ImGui::GetCursorStartPos().y + (goto_addr / Rows) * line_height);
+ImGui::End();
+```