3.7 KiB
DirectComposition layered child window sample
This sample demonstrates how to use the Microsoft DirectComposition API to animate the bitmap of a layered child window.It consists of a simple video player that lets you apply animated 2-D transforms to the video window as a video plays.
Specifically, this sample shows how to:
- Create layered child windows by applying the WS_EX_LAYERED extended window style
- Animate layered child windows and apply animated 2-D transforms (translate, rotate, skew, and scale)
- Use the window cloaking feature to hide a layered child window's "real" window bitmap while DirectComposition animates the visual representation of the window
Warning This sample requires Microsoft Visual Studio 2013 or a later version (any SKU) and won't compile in Microsoft Visual Studio Express 2013 for Windows.
Note The Windows-classic-samples repo contains a variety of code samples that exercise the various programming models, platforms, features, and components available in Windows and/or Windows Server. This repo provides a Visual Studio solution (SLN) file for each sample, along with the source files, assets, resources, and metadata needed to compile and run the sample. For more info about the programming models, platforms, languages, and APIs demonstrated in these samples, check out the documentation on the Windows Dev Center. This sample is provided as-is in order to indicate or demonstrate the functionality of the programming models and feature APIs for Windows and/or Windows Server. This sample was created for Windows 8.1 and/or Windows Server 2012 R2 using Visual Studio 2013, but in many cases it will run unaltered using later versions. This sample was created for Windows 8.1 and/or Windows Server 2012 R2 using Visual Studio 2013, but in many cases it will run unaltered using later versions. Please provide feedback on this sample!
To get a copy of Windows, go to Downloads and tools.
To get a copy of Visual Studio, go to Visual Studio Downloads.
Related topics
How to animate the bitmap of a layered child window
Related technologies
Operating system requirements
Client
Windows 8.1
Server
Windows Server 2012 R2
Build the sample
To build this sample:
- Start Visual Studio and select File > Open > Project/Solution.
- Go to the directory named for the sample. Go to the cpp directory and double-click the Visual Studio Solution (.sln) file.
- Press F6 or use Build > Build Solution to build the sample.
Run the sample
To run this sample after building it, use Windows Explorer to go to the installation folder for this sample and run DirectComposition_LayeredChildWindow.exe from the <install_root>\DirectComposition layered child window sample\C++\Debug folder.
To run this sample from Microsoft Visual Studio, press the F5 key to run with debugging enabled, or Ctrl+F5 to run without debugging enabled. Alternatively, select Start Debugging or Start Without Debugging from the Debug menu.
To see this sample in action, you need to load a media file for the sample to play in its video window. You'll find a demo media file called vc1 in the <install_root>\DirectComposition layered child window sample\C++\media folder.