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Internals: Initialize drawlist earlier in Begin() to facilitate detecting accidental draw earlier than legal. (#3311)
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@ -5606,6 +5606,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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window->HasCloseButton = (p_open != NULL);
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window->ClipRect = ImVec4(-FLT_MAX,-FLT_MAX,+FLT_MAX,+FLT_MAX);
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window->IDStack.resize(1);
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window->DrawList->_ResetForNewFrame();
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// Restore buffer capacity when woken from a compacted state, to avoid
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if (window->MemoryCompacted)
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@ -5883,7 +5884,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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// DRAWING
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// Setup draw list and outer clipping rectangle
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window->DrawList->_ResetForNewFrame();
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IM_ASSERT(window->DrawList->CmdBuffer.Size == 1 && window->DrawList->CmdBuffer[0].ElemCount == 0);
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window->DrawList->PushTextureID(g.Font->ContainerAtlas->TexID);
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PushClipRect(host_rect.Min, host_rect.Max, false);
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