chromeexts - Chrome's Windbg Extension

chromeexts is a debugger extension that works in cdb, ntsd, and windbg.

[TOC]

Loading chromeexts

First build the chromeexts build target with ninja and then in the debugger, run the following command:

> .load [Path to the chromeexts.dll]

After that, the following commands will work in the debugger.

UI Commands

!view

> !views [options] <Address To View Object>

Provides information about a view object in a easy to read format.

Option	Description
`/children`	Output the addresses of all children
`/r`	Requires `/children`. Output all children recursively.

Examples

Simple Output

> !view 0x250a57f0
Bounds: 0,9 (1042x1077)
Parent: 0x250801a8

Viewing the Children

> !view /children 0x250a57f0
Child Count: 4
25b9e368 25b91110 2507e0a8 2507fd78

Viewing the Children Recursively

> !view /children /r 0x25ee8098
Child Count: 4
<views!views::MdTextButton::`vftable' address="0x25ee8098" bounds="274 8 32x106" enabled="false" id="0" needs-layout="false" visible="true">
  <views!views::FocusRing::`vftable' address="0x25e2f328" bounds="-1 -1 34x108" enabled="false" id="0" needs-layout="false" visible="false" />
  <views!views::InkDropContainerView::`vftable' address="0x25e2b9d8" bounds="0 0 32x106" enabled="false" id="0" needs-layout="false" visible="false" />
  <views!views::ImageView::`vftable' address="0x25e2d4f8" bounds="16 16 0x0" enabled="false" id="0" needs-layout="false" visible="true" />
  <views!views::internal::LabelButtonLabel::`vftable' address="0x25f75690" bounds="16 0 32x74" enabled="false" id="0" needs-layout="false" visible="true" />
</views!views::MdTextButton::`vftable'>

!hwnd

> !hwnd <Window Handle>

Requires live debugger. Provides information about an HWND.

Example

> !hwnd 008F0638
Title: chromeexts - Chrome's Windbg Extension - Google Chrome
Class: Chrome_WidgetWin_1
Hierarchy:
   Owner: 00000000 Parent: 00000000
   Prev:  000900c8 Next:   000402f4
Styles: 16cf0000 (Ex: 00000100)
Bounds: (253, 246) 1718x816