"Yet another reason to buy an iPad: iDisplay" MobileWhack I mean, I can think of about a billion uses for this." MobileCrunch "iDisplay app turns your iPad or iPhone into secondary screen – too good to be true. Recommended by Kim Komando, tech guru of USA Today. Perfect tool for multitaskers, iDisplay lets you use your iPad and iPhone as an interactive touch-screen wireless display to give you more screen real estate. Works with both, Lightning and 30-pin cable connection or Wifi on macOS (with almost 0 latency).ĭouble your personal productivity by extending your computer screen. This sample demonstrates how to connect a monitor, how to respond to a mode set, and how to receive frames.Turn your iPad or iPhone into an additional touch-screen display for your Mac or Windows computer or mirror your desktop.Īll usual desktop apps, such as Excel, Word, PowerPoint or Photoshop, are available with desktop features on iPad and iPhone, touch-enabled. Microsoft provides a sample IDD implementation at the Windows Driver Samples GitHub. Instead, drivers should use the equivalent IddCx Xxx functions. System-supplied IddCx class extension functions that IDDs can call for example, IddCxAdapterInitAsync. IDDs implement both IddCx-specific callbacks such as EVT_IDD_CX_ADAPTER_COMMIT_MODES, as well as relevant WDF callbacks such as EVT_WDF_DEVICE_D0_EXIT. IddCx callback and function naming conventions Prefix The IDD should be built as a universal windows driver so it can be used on multiple Windows platforms.Īt build time, the UMDF IDD declares the version of IddCx it was built against and the OS ensures that the correct version of IddCx is loaded when the driver is loaded. The driver should not call user-mode APIs that are not appropriate for driver use, such as GDI, windowing APIs, OpenGL, or Vulkan. In fact, the IddCx provides the desktop image to encode in a DirectX surface. As such, the driver is able to use any DirectX APIs in order to process the desktop image. The IDD is a user-mode only model with no support for kernel-mode components. The following diagram provides an architectural overview. The IDD runs in Session 0 without any components running in the user session, so any driver instability will not affect the stability of the system as a whole. Process the desktop images to display on the monitorīecause an IDD is a UMDF driver, it is also responsible for implementing all UMDF functionality such as device communications, power management, plug and play etc.Support other display functionality, like hardware mouse cursor, gamma, I2C communications, and protected content.Provide descriptions of the monitors connected.Report monitors being connected and disconnected from the system.Create the graphics adapter representing the indirect display device.It is developed using the functionality exposed by the IddCx (Indirect Display Driver Class eXtension) to interface with the windows graphics subsystems in the following ways: IDD implementationĪn IDD is the third party-provided UMDF driver for the device. An example is a dongle connected to the PC via USB that has a regular (VGA, DVI, HDMI, DP, etc) monitor connected to it. The indirect display driver (IDD) model provides a simple user-mode driver model to support monitors that are not connected to traditional GPU display outputs.
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