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52 lines
1.2 KiB
Markdown
52 lines
1.2 KiB
Markdown
---
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title: "Activate Function - WPF unmanaged API reference"
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titleSuffix: ""
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ms.date: "03/30/2017"
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dev_langs:
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- "cpp"
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api_name:
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- "Activate"
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api_location:
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- "PresentationHost_v0400.dll"
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ms.assetid: 1400329c-b598-465f-80f2-e3dabf044811
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---
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# Activate Function (WPF Unmanaged API Reference)
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This API supports the Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code.
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Used by the Windows Presentation Foundation (WPF) infrastructure for windows management.
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## Syntax
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```cpp
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void Activate(
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const ActivateParameters* pParameters,
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__deref_out_ecount(1) LPUNKNOWN* ppInner,
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);
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```
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## Parameters
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`pParameters`\
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A pointer to the window's activation parameters.
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`ppInner`\
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A pointer to the address of a single-element buffer that contains a pointer to an <xref:Microsoft.VisualStudio.OLE.Interop.IOleDocument> object.
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## Requirements
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**Platforms:** See [.NET Framework System Requirements](/dotnet/framework/get-started/system-requirements).
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**DLL:**
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In the .NET Framework 3.0 and 3.5: PresentationHostDLL.dll
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In the .NET Framework 4 and later: PresentationHost_v0400.dll
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**.NET Framework Version:** Available since 3.0
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## See also
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- [WPF Unmanaged API Reference](wpf-unmanaged-api-reference.md)
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