Monitors

Xojo example project

Description

HiDPI support is a must have nowadays. The Xojo Framework for TargetWindows has quite some positioning issues in a setup with multiple monitors that have different ScaleFactors.
This example Xojo project shows how to work around this by using the Windows API to position dialog windows, while falling back to the default Xojo Framework methods on other platforms.

Use the buttons on the right hand side to use the Windows API on TargetWindows.

The examples show how to:

• CenterModal
  • Positions a Modal Dialog in the center of the parent Window.
• FitOnMonitor
  • Ensures the main Window is fully visible. This is highly recommended when positioning a Window according to user preferences (e.g. restore last position), as the user's setup might have changed since you've stored the last position.
• FullScreen
  • Ensures the main Window covers all of the Monitor.
• Positioning (e.g. a modal dialog)
  • Position a modal dialog at a relative position to the main window.
  • Explicitly position a modal dialog on a relative position of a certain Monitor/Screen.
    That's a feature not available in the Xojo Framework.
  • Explicitly position a modal dialog using Xojo's "virtual screen coordinates".
    That's one of the biggest issues in the Xojo Framework in a multi-monitor with multi-scalefactor situation.

ScreenShots

Example application: Windows

Xojo

Requirements

Xojo is a rapid application development for Desktop, Web, Mobile & Raspberry Pi.

The Desktop application Xojo example project Monitors.xojo_project is using:

• Xojo 2018r4
• API 1

How to use in your own Xojo project?

1. Copy the Module modWindowPositionFix to your project.
2. Have a look at how the example projects is using the provided Methods.
   E.g.: aWindowInstance.FitOnMonitor()

About

Juerg Otter is a long term user of Xojo and working for CM Informatik AG. Their Application CMI LehrerOffice is a Xojo Design Award Winner 2018. In his leisure time Juerg provides some bits and pieces for Xojo Developers.

Contact

     

Donation

Do you like this project? Does it help you? Has it saved you time and money?
You're welcome - it's free... If you want to say thanks I'd appreciate a message or a small donation via PayPal.