Compare files on double click in Pending Changes view

Question

Is there a way in visual studio to change the behavior when I double click a file in the \'Pending Changes\' view.

The default behavior is, that Visual Studio opens

Answer 1

VS 2019 And Beyond (hopefully)

Building on Tereza's answer using powershell

Run powershell as adminstrator and close Visual Studio. (you might have to wait a couple of seconds for VS to release some files) (if you copy paste make sure to send the last command, or else VS won't start)

$instanceId = $(& "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -property instanceId).Trim()
$versionMajor = $(& "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -property installationVersion).Trim().Substring(0,2)
$year = $(& "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -property catalog_productLineVersion).Trim()
reg.exe load HKLM\VS$yearPrivateRegistry $env:LOCALAPPDATA\Microsoft\VisualStudio\$versionMajor.0_$instanceId\privateregistry.bin
reg.exe add HKLM\VS$yearPrivateRegistry\Software\Microsoft\VisualStudio\$versionMajor.0_$instanceId\TeamFoundation\SourceControl\Behavior /v DoubleClickOnChange /t REG_DWORD /d 1 /f
reg.exe unload HKLM\VS$yearPrivateRegistry

This attempts to determine the major version as well.