In the Windows XP era, many users have been bothered by the "black image" after the video screenshot. In this regard, in the solution to the local playback when the screenshot becomes black, there are generally two ways to solve, one method is to use two different players, open the same file at the same time; another method is to disable DirectDraw.
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. This also means that Windows 7 users can't solve the blackening problem of the screenshot by "Disable 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, navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlGraphicsDriversDCI, and then double-click "Timeout" in the right window. Then, in the pop-up window, change the default value of "7" to " 0”."
After the modification is completed, the save settings will be exited and will take effect the next time you start.
Method 2: Installing Windwos 7 Dedicated Drivers
Some Windows 7 users may find that DirectDraw is still enabled under Windows 7 after modifying the registry and restarting the computer. By modifying the registry method, the purpose of disabling DirectDraw is not achieved.
This situation occurs because Windows 7 differs from Windows XP in terms of graphics card driver. Some video card users need to download and install dedicated drivers, some public version drivers, and some Windows XP under Windows 7. Under the drivers, they cannot modify the state of DirectDraw under Windwos 7.
Edit Comment:
From solving this small problem of "video screenshots", we can see that Windows 7 is not just a function and operating habit compared to Windows XP. The difference in sex. At the hardware driver level, Windows 7 has more requirements. If some of the common problems encountered under Windows XP cannot be solved by the "General" method under Windows 7, you need to broaden your thinking and start with a more flexible aspect.
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