Win7 DirectDraw can not be disabled solution

DirectDraw is the basic part of DirectX for video input and output. DirectDraw makes it easy to program efficient video processing. As long as the user's hardware supports DirectDraw, you can ensure that your code can handle them. So if DirectDraw in Windows 7 can't be disabled, how can I fix it?

Users familiar with Windows XP and Windows 7 should know (by default) that DirectDraw is enabled under Windows XP and Windows 7. The difference is that under Windows XP users can disable it, and under Windows 7, it can't be disabled, which means that Windows 7 users can't solve the blackening problem of the screenshot by "disabling DirectDraw". By default, DirectDraw in Windows 7 cannot be disabled, but we can disable it by other workarounds:

Method 1: Modify the registry

Under Windows 7, run the registry editor Go to HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\GraphicsDrivers\\DCI, then find and double-click "Timeout" in the right window, and then change the default value "7" to "0" in the pop-up window. ;.

After the modification is completed, save the settings to exit, and then take effect the next time you start.

Method 2: Install Windwos7 dedicated driver

Some Windows 7 users may find that after modifying the registry and restarting the computer, DirectDraw is still enabled under Windows 7, that is, by modification The registry method failed to achieve the purpose of disabling DirectDraw.

This situation occurs because Windows7 is different from Windows XP in terms of graphics card driver. Some video card users need to download and install dedicated drivers under Windows 7, some public version drivers, and some drivers under Windows XP. They cannot modify the state of DirectDraw under Windwos7.

As with other DirectX components, DirectDraw maximizes the use of hardware to perform a specific function whenever possible, and allows features that are not supported by the hardware to be implemented in software emulation.