DPI awareness is essential for maintaining a consistent and visually accurate user interface. It ensures that all Ul elements automatically scale proportionally according to Windows display scaling settings, providing a clear and well-balanced appearance across monitors with different resolutions and DPI values.
In the following DPI scaling modes provided by Microsoft, PowerBuilder/InfoMaker has optimized its DPI-aware scaling logic to work with the "Per-Monitor (V2) DPI Awareness" mode.
Which means, only the "Per-Monitor (V2) DPI Awareness" mode can benefit from PowerBuilder/InfoMaker's optimization.
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None -- (0) DPI awareness is disabled.
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DPI Unaware -- (1) No scaling support, static at 96 DPI.
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System DPI Awareness -- (2) Scales based on system DPI, but doesn't adjust dynamically for different monitors.
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Per Monitor (V1) DPI Awareness -- (3) Scales based on the DPI of the monitor the app is on.
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Per-Monitor (V2) DPI Awareness -- (4) Full dynamic scaling based on the monitor and window state.
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DPI Unaware GDI Scaled -- (5) GDI scaling applied when running on high-DPI displays, but not ideal quality.
For more about automatic DPI scaling management provided by Microsoft, please refer to Microsoft's documentation: High DPI and DPI_awareness_context.
When you create the application executable, you can select the DPI scaling mode used by the application.
If you select the Per-Monitor (V2) DPI Awareness mode, the DPI scaling in your application will be handled by InfoMaker together with Windows OS:
| InfoMaker | Windows OS |
|---|---|
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InfoMaker will handle DPI scaling for the following UI elements:
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Windows OS will handle DPI scaling for the following UI elements:
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Note
If you select the other DPI scaling modes (such as System DPI Awareness, Per Monitor (V1) DPI Awareness), InfoMaker does NOT provide additional optimization; and your application will rely entirely on Windows OS for automatic scaling.
Please run comprehensive testing to ensure that the scaling results meet your expectations.
Unsupported features
Please note the following unsupported features when using the Per-Monitor (V2) DPI Awareness mode in the application:
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The built-in images and system icons do not support SVG format, causing them to appear blurry under high DPI displays.
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When an application has Traditional menu, the font display on the menu is blurry. Currently, there is no workaround for this issue.
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In multi-monitor setups, when an application is manually dragged to another screen, system icons may display abnormally, as shown in the figure below. You can try reopening the application or disabling the "Let Windows try to fix apps so they’re not blurry" option in Windows to avoid this problem.
