如何修改Visual Studio中Peek Definition窗口的默认大小以多显示约10行内容？

Absolutely! You can tweak the default size of the Peek Definition window to show about 10 more lines of content—here are two straightforward methods to get it done:

Method 1: Use Visual Studio's Built-in Options #

• Open Visual Studio, then go to Tools > Options from the top menu bar.
• In the Options window, expand the Text Editor category and select General.
• Scroll down to the Peek section, where you'll find the Maximum height (lines) setting. The default value is usually around 20; change it to 30 (or your preferred number) to add those extra 10 lines.
• Click OK to save your changes. The next time you open a Peek Definition window, it will use this new default height automatically.

Method 2: Modify the Registry (For Older VS Versions or Advanced Tweaks) #

If you can't find the setting in the Options menu (common in some older Visual Studio releases), you can adjust it via the Windows Registry:

• First, close Visual Studio completely.
• Open the Registry Editor by pressing Win + R, typing regedit, and hitting Enter.
• Navigate to this path (replace <VS_VERSION> with your actual Visual Studio version number, e.g., 17.0 for VS 2022, 16.0 for VS 2019):

  HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\<VS_VERSION>\Text Editor
  

• Look for a DWORD value named PeekWindowMaxHeight in the right pane. If it doesn't exist, right-click in the empty space, select New > DWORD (32-bit) Value, and name it PeekWindowMaxHeight.
• Double-click the value, switch to Decimal mode, and enter your desired number of lines (e.g., 30). Click OK to confirm.
• Restart Visual Studio, and your Peek Definition window will now use the new default size.

Quick Tip #

If you've manually resized the Peek window before, Visual Studio might remember that custom size instead of using your default setting. To reset it, right-click the Peek window's title bar and select Reset Size—this will revert it to the height you set in Options or the Registry.

内容的提问来源于stack exchange，提问作者mattcall65