What's Changed

Added support for the new Dear ImGui (1.92+) font atlas and its managed textures. This allows blitting glyphs as they are used instead of pre-rendering all of them into a large texture. NetImgui automatically forward the font atlas glyphs to the NetImgui Server with the desired DPI without any library user intervention.

Take a look at SampleTexture for more insights into using Dear ImGui's managed textures.

Version 1.13

(2026/01/05)

• API Changes
  • Added support of new ImTextureRef parameter to NetImgui::SetBackground(...)
  • NetImgui::eTexFormat enum entries shuffled
  • 'FontCreation callback' parameter in ConnectToApp(...) and ConnectFromApp(...) now ignored in Dear ImGui 1.92+
    • No need to regenerate texture atlas on DPI change anymore, making the callback pointless
    • Callback is left as a parameter for programs using Dear ImGui versions from before 1.92
    • If you did implement the callback, the code can be safely removed (on version 1.92+)
  • Disabled Custom Texture format
    • Allows transmitting data for user managed custom texture format but has not been made functional with updated texture system yet
• Backend change
  • Upgraded to Dear ImGui 1.92.5
  • Added support for new Dear ImGui 1.92+ font atlas
    • Font texture atlas contains needed glyphs only, doesn't pre-render all glyphs at each font point
      • This means much a smaller texture
    • Improved handling of monitor DPI
      • Transparent to library users
  • Added support for Dear ImGui managed textures
    • Automatic hookup into textures creations/update/destruction
    • Partial texture region update support
• Samples
  • Reworked 'Sample Textures' to demonstrate...
    • Creating, updating and using Dear ImGui managed textures
    • NetImgui automatically forwarding all of the managed textures operations to the NetImgui Server
    • The ability of still using your own textures objects
      • These need to be manually send to the NetImgui Server
  • Removed Sample DPI
    • Uneeded now that DPI is automatically handle without user needing to implement anything
  • Removed Sample DualUI
    • Can no longuer re-use same remote Imgui draw data to re-use for local display so remove it
• Misc
  • Updated Sharpmake version to 0.92
    • Added Visual Studio 2026 support
    • Used by Server and Samples solutions generation (not needed by library users of NetImgui's client code)
  • NetImgui Server application now remember previous window placement on launch

New Contributors

• @Relx101 made their first contribution in #64
• @Henry-Je made their first contribution in #66

Full Changelog: v1.12.1...v1.13

Version 1.12.1

(2024/12/10)

• API Changes
  • None
• Various small changes and fixes
  • Fixed a Copy/paste and a Disconnect crashFor more details about NetImgui v1.12, please see this

Full Changelog: v1.11.0...v1.12.1

Note

Thsi version contains a crash on Copy/Paste and on Disconnect request, please use version 1.12.1.

Version 1.12

(2024/12/08)

• API Changes
  • None
• Backend change
  • Networking protocol has been reworked
  • If you are using our own networking layer, you will need to support changes made to 'DataReceive' and 'DataSend' and the addition of 'DataReceivePending'
  • This was done to drastically improve performances by using non-blocking sockets (saw boost from 8fps to 30fps on programs running at 30fps)
  • For more details, please look at the changes done to NetImgui_NetworkWin32.cpp or NetImgui_NetworkUE4.cpp
  • Note: The Posix network code has not been updated to new protocol yet, only Windows and UE4 have been done
• Various small changes and fixes
  • Tested Dear ImGui versions up to 1.91.5 and updated the NetImgui Server to it (docking branch).

Full Changelog: v1.11.0...v1.12.0

Version 1.11

(2024/05/26)

• API Changes
  • None
• Added Connection 'Take Over' support
  • When a NetImgui Client is already connected to a NetImgui Server, user of a second instance of a NetImgui Server now have the option of Taking over the connection.
  • This is useful when the Client Config on a NetImgui Server is set to Auto Connect and a user on a second PC wish to still connect to the client.
  • Users can enable the option Block TakerOver in their Client Config to prevent this possibility.
• Various small changes and fixes
  • Tested Dear ImGui versions up to 1.90.6 and updated the NetImgui Server to it (docking branch).

What's Changed

• Dev pull for Version 1.11 Release by @sammyfreg in #58

Full Changelog: v1.10.0...v1.11.0

Version 1.10

(2023/12/30)

• API Changes
  • ConnectToApp() and ConnectFromApp() functions now accept a callback to be used by the NetImgui Server when wanting to update the font to a specific DPI scale.
    • Can be left untouched, with null used by default.
    • Without a callback, we apply the text scaling to ImGuiIO.FontGlobalScale instead of requesting the generation of a new font with increased pixel size.
    • Using ImGuiIO.FontGlobalScale gives a blurier text result than recreating the font with the exact DPI needed.
    • See SampleFontDPI for more info.
  • SendDataTexture() now support a new texture format kTexFmtCustom.
    • It requires that the dataSize parameter is specified since we can't deduce it anymore (but not used for other formats)
    • It allows user to send a texture command with custom data that also needs to be added to NetImguiServer codebase.
    • This could be used for movie streaming, etc...
    • See SampleTexture for more info.
• Upgraded Dear ImGui support to 1.90
• Added monitor DPI support
  • The Server now scale the text up on a high resolution monitor, so it can still be read
  • The Server font atlas is regenerated with a higher pixel size to match the resolution
  • The Client connected will be asked to regenerate their font atlas if they provided a callback when connecting
    • When this callback is received, the client codebase should regenerate the font atlas using the provided scale
    • When no callback has been assigned, the client automatically relies on ImGuiIO.FontGlobalScale when drawing (blurier results)
    • See SampleFontDPI for more info.
• Added Clipboard support
  • Can now seamlessly use text clipboard between Client and Server!
  • Text copied on the Server PC is now sent over to the NetImgui Clients and can be pasted inside their Dear ImGui content
  • Text copied inside the Client's Dear ImGui content is now received by the Server PC and can be used on it
• Shared Client configs
  • When adding a Client configuration on the NetImgui Server application, the property Shared can now be specified
  • When enabled, it will save the config in a User Directory instead of the current Working Directory
  • This means that user can have NetImgui Server applications in various locations, but they can all still share the same Client Configs.
  • Note: Requires that the function HAL_GetUserSettingFolder() is implemented in the NetImgui Server codebase. It has been done for Windows.
• Various small changes and fixes
  • When the NetImgui Server config file netImgui.cfg is detected readonly, now tries to create a second one. This should help if user submit the default config file to perforce but still want to add new Clients.
  • Quickly typed text was dropping characters when received by Client
  • DirectX textures error when quickly recreating them

• Upgraded Dear ImGui support to 1.89.5
• Various small changes and fixes

Version 1.9

(2023/05/04)

• API Changes
  • None, but communication version increase, need both client code and server exe to match.

• Updated missing Api number update in api file
• Support for new Dear ImGui input event architecture
• Various small changes and fixes

Version 1.8.1

(2022/07/18)

• API Changes
  • None
• Dear ImGui 1.87 input event support
  • Input handling refactored to handle new Dear ImGui input event system (thanks to @lemantisee)
  • Added gamepad support
• Compatibility tests
  • Now compile simple compatibility app for each Dear ImGui version supported
  • Allows to make sure the NetImgui Server works properly against any Dear ImGui version
• Other Changes
  • 32bits support bugs fix in client code
  • NetImgui server popup now centered on main window
  • Some OpenGL fixes
  • Visual Studio 2022 LLVM support fix

• Support for new Dear ImGui input event architecture
• Various small changes and fixes

Version 1.8

(2022/07/18)

• API Changes
  • None
• Dear ImGui 1.87 input event support
  • Input handling refactored to handle new Dear ImGui input event system (thanks to @lemantisee)
  • Added gamepad support
• Compatibility tests
  • Now compile simple compatibility app for each Dear ImGui version supported
  • Allows to make sure the NetImgui Server works properly against any Dear ImGui version
• Other Changes
  • 32bits support bugs fix in client code
  • NetImgui server popup now centered on main window
  • Some OpenGL fixes
  • Visual Studio 2022 LLVM support fix

Fixed a memory leak in the NetImguiServer application.
(Client code remains unchanged).

Version 1.7.5

(2022/01/31)

• API Changes
  • None
• Bug fixes
  • NetImgui Server memory leak fix

Note: Please use release v1.7.5.
(Contains a memory leak fix on the NetImguiServer application)

Description
A few bug fixes, to resolve some out of sync issue when compression active.

Version 1.7.4

(2022/01/30)

• API Changes
  • Removed the bWait parameter from Shutdown()
    • Always wait for Shutdown completion before returning now
    • This prevents multithread data release issues
  • Added a NETIMGUI_API define prefix to functions exported in NetImgui_Api.h
    • Similar to IMGUI_API, allows library user to control dll import/export
    • Takes the same value as IMGUI_API by default
• Bug fixes
  • Compression feature causing some out of sync issue with NetImgui Server
  • 32bits index support crash