# Windows **URL:** https://forum.xojo.com/c/targets/windows/26.md [Latest](https://forum.xojo.com/latest.md) · [Categories](https://forum.xojo.com/categories.md) --- ## [About the Windows category](https://forum.xojo.com/t/about-the-windows-category/7835)
**Author:** [@system](https://forum.xojo.com/u/system)\ **Replies:** 0
Got questions about using the IDE on or deploying your apps on Windows? Ask them here. --- ## [DateTime.Now fails on Windows with the new Alberta time zone (Sept/Oct 2026 Windows updates)](https://forum.xojo.com/t/datetime-now-fails-on-windows-with-the-new-alberta-time-zone-sept-oct-2026-windows-updates/89005)
**Author:** [@Kimball\_Larsen](https://forum.xojo.com/u/Kimball_Larsen)\ **Replies:** 9\ **Last updated:** [October 20, 2026, 6:34pm UTC](https://forum.xojo.com/t/datetime-now-fails-on-windows-with-the-new-alberta-time-zone-sept-oct-2026-windows-updates/89005 "2026-10-20T18:34:29Z")
Sorry this is a bit dense, but it’s a time zone issue, and the details matter. Starting this week, some of our Windows users in Alberta, Canada cannot launch our app. The app crashes in App.Opening on the first call to … --- ## [Header on Web Listbox not displaying correctly?](https://forum.xojo.com/t/header-on-web-listbox-not-displaying-correctly/89013)
**Author:** [@Jeffery\_Lemons](https://forum.xojo.com/u/Jeffery_Lemons)\ **Replies:** 4\ **Last updated:** [October 19, 2026, 9:19pm UTC](https://forum.xojo.com/t/header-on-web-listbox-not-displaying-correctly/89013 "2026-10-19T21:19:56Z")
Can anybody tell me what is causing this? The header is displaying a small row below it and it has the same color as the header. How can I turn off this second header or whatever is happening here? --- ## [Still no fix to Support Hi-DPI on Windows? (#81645)](https://forum.xojo.com/t/still-no-fix-to-support-hi-dpi-on-windows-81645/88927)
**Author:** [@Chris\_O\_Brien](https://forum.xojo.com/u/Chris_O_Brien)\ **Replies:** 8\ **Last updated:** [September 30, 2026, 4:37pm UTC](https://forum.xojo.com/t/still-no-fix-to-support-hi-dpi-on-windows-81645/88927 "2026-09-30T16:37:06Z")
A terrible bug that raises it’s head when Windows installs have two monitors in certain configurations. Supports Hi-DPI has to remain switched off for all our releases --- ## [DesktopListBox Color Text and background](https://forum.xojo.com/t/desktoplistbox-color-text-and-background/88925)
**Author:** [@Volbragt\_Etienne](https://forum.xojo.com/u/Volbragt_Etienne)\ **Replies:** 2\ **Last updated:** [September 23, 2026, 6:48pm UTC](https://forum.xojo.com/t/desktoplistbox-color-text-and-background/88925 "2026-09-23T18:48:16Z")
Windows 11 - XOJO 26r2.1 I have a DesktopListBox that has different colors for specific rows. When selecting a row, there are some colors where the text is no longer clearrly visible. What I would like to achive is th… --- ## [Smart App Control blocking my app](https://forum.xojo.com/t/smart-app-control-blocking-my-app/88751)
**Author:** [@Craig\_Grech](https://forum.xojo.com/u/Craig_Grech)\ **Replies:** 12\ **Last updated:** [September 9, 2026, 8:09pm UTC](https://forum.xojo.com/t/smart-app-control-blocking-my-app/88751 "2026-09-09T20:09:20Z")
Has anyone had issues with Smart App Control blocking their app. I have been marketing this app unsigned on the web not Windows Store for more than 20 years and now suddenly users in Denmark cannot use it. The only solu… --- ## [Listbox first row highlighted](https://forum.xojo.com/t/listbox-first-row-highlighted/88798)
**Author:** [@Benoît\_Bouillon](https://forum.xojo.com/u/Beno%C3%AEt_Bouillon)\ **Replies:** 13\ **Last updated:** [August 31, 2026, 8:11pm UTC](https://forum.xojo.com/t/listbox-first-row-highlighted/88798 "2026-08-31T20:11:36Z")
Hello friends, I apologize for asking what is likely a basic question, but despite extensive searching and help from AI, I haven’t managed to resolve this issue. When I populate a listbox with all these columns and row… --- ## [DesktopHTMLViewer uses WebView2 when building for WinUI](https://forum.xojo.com/t/desktophtmlviewer-uses-webview2-when-building-for-winui/88688)
**Author:** [@Mike\_D](https://forum.xojo.com/u/Mike_D)\ **Replies:** 2\ **Last updated:** [July 30, 2026, 3:01pm UTC](https://forum.xojo.com/t/desktophtmlviewer-uses-webview2-when-building-for-winui/88688 "2026-07-30T15:01:46Z")
2026R2 added this new feature: DesktopHTMLViewer now uses WebView2 when building for WinUI Link I’m trying to understand how this works. In the IDE, an DesktopHTMLViewer does not have any instance settings that app… --- ## [SQLite Auto Commit Mode Questions?](https://forum.xojo.com/t/sqlite-auto-commit-mode-questions/88678)
**Author:** [@Jeffery\_Lemons](https://forum.xojo.com/u/Jeffery_Lemons)\ **Replies:** 1\ **Last updated:** [July 29, 2026, 10:21am UTC](https://forum.xojo.com/t/sqlite-auto-commit-mode-questions/88678 "2026-07-29T10:21:12Z")
A few years back when we were coming from RealBasic to Xojo, one of the things that had to be changed was the way we were opening the database and beginning a transaction. Every time we opened we did the begin transacti… --- ## [Eyedropper in Windows](https://forum.xojo.com/t/eyedropper-in-windows/88624)
**Author:** [@Jeff\_Tullin](https://forum.xojo.com/u/Jeff_Tullin)\ **Replies:** 1\ **Last updated:** [July 18, 2026, 9:45am UTC](https://forum.xojo.com/t/eyedropper-in-windows/88624 "2026-07-18T09:45:37Z")
The MacOS colorpicker has an eyedropper tool that can grab colors from anywhere on screen. How might that be achieved on Windows? --- ## [Controls Missing from Xojo IDE](https://forum.xojo.com/t/controls-missing-from-xojo-ide/88545)
**Author:** [@Chris\_O\_Brien](https://forum.xojo.com/u/Chris_O_Brien)\ **Replies:** 20\ **Last updated:** [July 17, 2026, 9:34am UTC](https://forum.xojo.com/t/controls-missing-from-xojo-ide/88545 "2026-07-17T09:34:11Z")
Hi I wonder if any of you have experienced anything like the following. I released a new version of our product to a customer who experienced controls not refreshing (effectively not displaying at all) after the compute… --- ## [Window stops updating after screensaver](https://forum.xojo.com/t/window-stops-updating-after-screensaver/87766)
**Author:** [@Stephen\_Dodd](https://forum.xojo.com/u/Stephen_Dodd)\ **Replies:** 9\ **Last updated:** [July 17, 2026, 9:33am UTC](https://forum.xojo.com/t/window-stops-updating-after-screensaver/87766 "2026-07-17T09:33:40Z")
Any Xojo gurus got an idea how I might track this one down? Here’s what a normal window looks like And here’s what it looks like after the screensaver deactivates: The app still works but the window is mostly fr… --- ## [CodeSigning](https://forum.xojo.com/t/codesigning/86529)
**Author:** [@Jeff\_Tullin](https://forum.xojo.com/u/Jeff_Tullin)\ **Replies:** 46\ **Last updated:** [July 16, 2026, 2:06pm UTC](https://forum.xojo.com/t/codesigning/86529 "2026-07-16T14:06:30Z")
Well, the day I dreaded is almost here. My PFX based certificate runs out soon, and Sectigo is offering USB tokens or Cloud based ‘solution’ at a big price hike. I confess I don’t see how either of these options are su… --- ## [Microsoft SmartScreen and OV Certificates](https://forum.xojo.com/t/microsoft-smartscreen-and-ov-certificates/86735)
**Author:** [@Mike\_D](https://forum.xojo.com/u/Mike_D)\ **Replies:** 15\ **Last updated:** [July 15, 2026, 2:51pm UTC](https://forum.xojo.com/t/microsoft-smartscreen-and-ov-certificates/86735 "2026-07-15T14:51:14Z")
I recently began code-signing with a new OV (Organization Validation) code-signing certificate as described here: Link I’m finding that my EXE download is now triggering the Microsoft SmartScreen warning: 3 weeks a… --- ## [Windows Blocking My Installer?](https://forum.xojo.com/t/windows-blocking-my-installer/88595)
**Author:** [@Jeffery\_Lemons](https://forum.xojo.com/u/Jeffery_Lemons)\ **Replies:** 2\ **Last updated:** [July 14, 2026, 10:06pm UTC](https://forum.xojo.com/t/windows-blocking-my-installer/88595 "2026-07-14T22:06:35Z")
Hello everyone, we have our own installer for our program. Our program is ev code signed and the installer is also. For some reason, installer goes to download a zipped file, it gets to 1kb and stops. The same code is… --- ## [Legacy OLE / Document automation Stuff](https://forum.xojo.com/t/legacy-ole-document-automation-stuff/88565)
**Author:** [@Kevin\_Bryson](https://forum.xojo.com/u/Kevin_Bryson)\ **Replies:** 0\ **Last updated:** [July 9, 2026, 5:09pm UTC](https://forum.xojo.com/t/legacy-ole-document-automation-stuff/88565 "2026-07-09T17:09:31Z")
Is anyone else having problems with OLE, legacy applications written ages ago and performing well for decades, now failing with O365? If there’s a guru out there I’d really like to buy him a coffee. This is windows of … --- ## [Visual glitches on checkboxes](https://forum.xojo.com/t/visual-glitches-on-checkboxes/88434)
**Author:** [@Christian\_Wheel](https://forum.xojo.com/u/Christian_Wheel)\ **Replies:** 6\ **Last updated:** [June 16, 2026, 2:30pm UTC](https://forum.xojo.com/t/visual-glitches-on-checkboxes/88434 "2026-06-16T14:30:40Z")
Before I open a ticket on this, I want to make sure it’s not just on my system. I’m getting visual glitches in the space between the checkbox and the label; the leftmost pixels of the glyph seem to be creating a ghost i… --- ## [Canvas.Background in a Container](https://forum.xojo.com/t/canvas-background-in-a-container/88397)
**Author:** [@Horst\_Jehle](https://forum.xojo.com/u/Horst_Jehle)\ **Replies:** 2\ **Last updated:** [June 12, 2026, 5:19am UTC](https://forum.xojo.com/t/canvas-background-in-a-container/88397 "2026-06-12T05:19:24Z")
If I use a DesktopCanvas and place it over an existing DesktopCanvas it looks like it should on macOS and Linux. See the last two dark grey objects. But on Windows (Windows 11 ARM), it looks not good. See the last tw… --- ## [Misplaced Control At Design Time](https://forum.xojo.com/t/misplaced-control-at-design-time/88345)
**Author:** [@Paul\_Budd](https://forum.xojo.com/u/Paul_Budd)\ **Replies:** 3\ **Last updated:** [June 4, 2026, 12:28pm UTC](https://forum.xojo.com/t/misplaced-control-at-design-time/88345 "2026-06-04T12:28:32Z")
I have created a simple window and added a desktop checkbox to it. As you can see from the screen shot the ‘oversized’ check area has decided it does not want to sit alongside the rest of the control. Underlined in red i… --- ## [DesktopHTMLViewer gives 403 error](https://forum.xojo.com/t/desktophtmlviewer-gives-403-error/88329)
**Author:** [@David\_Cox](https://forum.xojo.com/u/David_Cox)\ **Replies:** 8\ **Last updated:** [June 1, 2026, 2:06pm UTC](https://forum.xojo.com/t/desktophtmlviewer-gives-403-error/88329 "2026-06-01T14:06:39Z")
I have written a cross-platform app with a Help Container that has a ListBox of topics that, when clicked, shows a web page in a DesktopHTMLViewer below: The selected URL is below ie it is a normal https web URL. ht… --- ## [WinUI: IsContextualClick always returns False in TextField.MouseDown](https://forum.xojo.com/t/winui-iscontextualclick-always-returns-false-in-textfield-mousedown/88247)
**Author:** [@Hugo\_Hollmann](https://forum.xojo.com/u/Hugo_Hollmann)\ **Replies:** 3\ **Last updated:** [May 12, 2026, 10:19pm UTC](https://forum.xojo.com/t/winui-iscontextualclick-always-returns-false-in-textfield-mousedown/88247 "2026-05-12T22:19:46Z")
Hi everyone, I’ve encountered a bug when WinUI is enabled in a Desktop project. It seems that the IsContextualClick property consistently returns False during the MouseDown event of a TextField, even when using a right-… --- ## [UI Rendering Bug: HasBackgroundColor inconsistently affects transparency and borders in Containers and Canvas](https://forum.xojo.com/t/ui-rendering-bug-hasbackgroundcolor-inconsistently-affects-transparency-and-borders-in-containers-and-canvas/88218)
**Author:** [@Hugo\_Hollmann](https://forum.xojo.com/u/Hugo_Hollmann)\ **Replies:** 0\ **Last updated:** [May 6, 2026, 5:03pm UTC](https://forum.xojo.com/t/ui-rendering-bug-hasbackgroundcolor-inconsistently-affects-transparency-and-borders-in-containers-and-canvas/88218 "2026-05-06T17:03:22Z")
This is a strange rendering behavior on Windows where setting a Window’s HasBackgroundColor property to True changes how child controls inside Containers and Canvases are drawn. The Setup: I have a Window with thr… --- ## [ShowPopup behavior on Windows: Shadowed Box fails to close on internal focus loss](https://forum.xojo.com/t/showpopup-behavior-on-windows-shadowed-box-fails-to-close-on-internal-focus-loss/88209)
**Author:** [@Hugo\_Hollmann](https://forum.xojo.com/u/Hugo_Hollmann)\ **Replies:** 0\ **Last updated:** [May 5, 2026, 8:53pm UTC](https://forum.xojo.com/t/showpopup-behavior-on-windows-shadowed-box-fails-to-close-on-internal-focus-loss/88209 "2026-05-05T20:53:49Z")
Hi everyone, I’ve noticed an inconsistent behavior when using DesktopWindow.ShowPopup on Windows, depending on the window’s Type. When a window is shown using ShowPopup, it is expected to close automatically when it lo… --- ## [Windows: DesktopTextField BackgroundColor is ignored when Password property is True](https://forum.xojo.com/t/windows-desktoptextfield-backgroundcolor-is-ignored-when-password-property-is-true/88123)
**Author:** [@Hugo\_Hollmann](https://forum.xojo.com/u/Hugo_Hollmann)\ **Replies:** 3\ **Last updated:** [April 21, 2026, 7:21pm UTC](https://forum.xojo.com/t/windows-desktoptextfield-backgroundcolor-is-ignored-when-password-property-is-true/88123 "2026-04-21T19:21:37Z")
Hi everyone, I’ve noticed a specific behavior in Windows (tested on Windows 11) regarding the DesktopTextField control. It seems that BackgroundColor and TextAlignment properties are being overridden or ignored when the… --- ## [Files: OneDrive screws up documents folder](https://forum.xojo.com/t/files-onedrive-screws-up-documents-folder/88112)
**Author:** [@Amy\_Barnes](https://forum.xojo.com/u/Amy_Barnes)\ **Replies:** 2\ **Last updated:** [April 20, 2026, 5:07am UTC](https://forum.xojo.com/t/files-onedrive-screws-up-documents-folder/88112 "2026-04-20T05:07:27Z")
I just discovered that removing OneDrive can result in a Nil Object error when trying to access the user’s special folder Documents on Windows if the system still points to /USER/OneDrive/Documents/ Might want to take t… --- ## [DesktopControls Font Size increased in Windows](https://forum.xojo.com/t/desktopcontrols-font-size-increased-in-windows/88062)
**Author:** [@Chris\_O\_Brien](https://forum.xojo.com/u/Chris_O_Brien)\ **Replies:** 0\ **Last updated:** [April 11, 2026, 3:39pm UTC](https://forum.xojo.com/t/desktopcontrols-font-size-increased-in-windows/88062 "2026-04-11T15:39:42Z")
Hi. I am experience the font size largening on DeskTop app running some Windows installs when the Scale is \> 100% - I have tried to reproduce it on my own computer and I can’t. I’ve changed the Scale, Text Size and chan… --- ## [Code to Upload to Google Drive?](https://forum.xojo.com/t/code-to-upload-to-google-drive/87629)
**Author:** [@Jeffery\_Lemons](https://forum.xojo.com/u/Jeffery_Lemons)\ **Replies:** 8\ **Last updated:** [April 4, 2026, 8:06pm UTC](https://forum.xojo.com/t/code-to-upload-to-google-drive/87629 "2026-04-04T20:06:48Z")
Anyone out there have code for Xojo desktop to upload a file from the program to Google Drive using the Google Drive API? --- ## [Cannot launch Snipping tool programatically](https://forum.xojo.com/t/cannot-launch-snipping-tool-programatically/88001)
**Author:** [@Lennox\_Jacob1](https://forum.xojo.com/u/Lennox_Jacob1)\ **Replies:** 8\ **Last updated:** [April 4, 2026, 5:07pm UTC](https://forum.xojo.com/t/cannot-launch-snipping-tool-programatically/88001 "2026-04-04T17:07:19Z")
Hello, I am trying to programatically launch Snipping Tool but it is not happening, I can launch Task Manager with similar code though. I have this code… If SpecialFolder.Windows.Child(“System32”).Child(“Snipping Too… --- ## [Worker doesn't launch on Windows 11 system](https://forum.xojo.com/t/worker-doesnt-launch-on-windows-11-system/87588)
**Author:** [@Mark\_Franken](https://forum.xojo.com/u/Mark_Franken)\ **Replies:** 5\ **Last updated:** [April 3, 2026, 5:50am UTC](https://forum.xojo.com/t/worker-doesnt-launch-on-windows-11-system/87588 "2026-04-03T05:50:05Z")
I have a client running my Mac/Win desktop app on Windows 11. He has two systems where my app from the front end looks like it hangs for a feature that uses a worker. This app was released over a year ago and I haven’t h… --- ## [Access Violation Post-Mortum](https://forum.xojo.com/t/access-violation-post-mortum/87957)
**Author:** [@Christian\_Wheel](https://forum.xojo.com/u/Christian_Wheel)\ **Replies:** 6\ **Last updated:** [March 30, 2026, 3:32pm UTC](https://forum.xojo.com/t/access-violation-post-mortum/87957 "2026-03-30T15:32:37Z")
I was getting an Access Violation hard crash in my large, complex app on Windows. It worked fine on MacOS, and it previously worked fine on Windows. I spent nearly a week trying everything I could think of, including re… [Next page](https://forum.xojo.com/c/targets/windows/26.md?page=1)