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Made DPI-awareness configurable (issue #6)

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It is now possible to indicate that an application is not DPI-aware. In
that case, OpenTK will let the operating system handle DPI scaling. This
results in worse visuals (pixel doubling) but allows non DPI-aware
applications to continue working.
This commit is contained in:
Stefanos A. 2013-12-02 22:18:16 +01:00
parent 32a5e0fc50
commit 1475b3d427
4 changed files with 29 additions and 5 deletions
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5
Source/OpenTK/Platform/SDL2/Sdl2NativeWindow.cs
View file

@ -79,7 +79,10 @@ namespace OpenTK.Platform.SDL2
flags |= WindowFlags.OPENGL;
flags |= WindowFlags.RESIZABLE;
flags |= WindowFlags.HIDDEN;
flags |= WindowFlags.ALLOW_HIGHDPI;
if (Toolkit.Options.EnableHighResolution)
{
flags |= WindowFlags.ALLOW_HIGHDPI;
}
if ((flags & WindowFlags.FULLSCREEN_DESKTOP) != 0 ||
(flags & WindowFlags.FULLSCREEN) != 0)

11
Source/OpenTK/Platform/Windows/WinFactory.cs
View file

@ -50,10 +50,13 @@ namespace OpenTK.Platform.Windows
if (System.Environment.OSVersion.Version.Major >= 6)
{
// Enable high-dpi support
// Only available on Windows Vista and higher
bool result = Functions.SetProcessDPIAware();
Debug.Print("SetProcessDPIAware() returned {0}", result);
if (Toolkit.Options.EnableHighResolution)
{
// Enable high-dpi support
// Only available on Windows Vista and higher
bool result = Functions.SetProcessDPIAware();
Debug.Print("SetProcessDPIAware() returned {0}", result);
}
}
}

7
Source/OpenTK/Toolkit.cs
View file

@ -134,6 +134,7 @@ namespace OpenTK
{
initialized = true;
Configuration.Init(options);
Options = options;
// The actual initialization takes place in the
// platform-specific factory constructors.
@ -145,6 +146,12 @@ namespace OpenTK
#endregion
#region Internal Members
internal static ToolkitOptions Options { get; private set; }
#endregion
#region IDisposable Members
/// <summary>

11
Source/OpenTK/ToolkitOptions.cs
View file

@ -68,6 +68,7 @@ namespace OpenTK
static ToolkitOptions()
{
Default = new ToolkitOptions();
Default.EnableHighResolution = false;
}
/// <summary>
@ -76,6 +77,16 @@ namespace OpenTK
/// </summary>
public PlatformBackend Backend { get; set; }
/// <summary>
/// Gets or sets a value indicating whether high
/// resolution modes are supported on high-DPI
/// ("Retina") displays. Enabled by default.
/// Set to false for applications that are not
/// DPI-aware (e.g. WinForms.)
/// </summary>
/// <seealso cref="http://msdn.microsoft.com/en-us/library/windows/desktop/ee308410(v=vs.85).aspx"/>
public bool EnableHighResolution { get; set; }
/// <summary>
/// Gets a <c>ToolkitOptions</c> instance with
/// default values.