public void ParkingWindow_SystemAware()
{
// run tests only on Windows 10 versions that support thread dpi awareness.
if (!PlatformDetection.IsWindows10Version1803OrGreater)
{
return;
}
// set thread awareness context to PermonitorV2(PMv2).
// if process/thread is not in PMv2, calling 'EnterDpiAwarenessScope' is a no-op and that is by design.
// In this case, we will be setting thread to PMv2 mode and then scope to UNAWARE
IntPtr originalAwarenessContext = User32.SetThreadDpiAwarenessContext(User32.DPI_AWARENESS_CONTEXT.PER_MONITOR_AWARE_V2);
try
{
using (DpiHelper.EnterDpiAwarenessScope(User32.DPI_AWARENESS_CONTEXT.SYSTEM_AWARE))
{
using var control = new Control();
ThreadContext ctx = GetContextForHandle(new HandleRef(this, control.Handle));
Assert.NotNull(ctx);
ParkingWindow parkingWindow = ctx.GetParkingWindowForContext(User32.DPI_AWARENESS_CONTEXT.SYSTEM_AWARE);
Assert.NotNull(parkingWindow);
IntPtr dpiContext = User32.GetWindowDpiAwarenessContext(parkingWindow.Handle);
Assert.True(User32.AreDpiAwarenessContextsEqual(User32.DPI_AWARENESS_CONTEXT.SYSTEM_AWARE, dpiContext));
}
}
finally
{
// reset back to original awareness context.
User32.SetThreadDpiAwarenessContext(originalAwarenessContext);
}
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
ArgumentNullException.ThrowIfNull(provider);
if (!provider.TryGetService(out IWindowsFormsEditorService editorService))
{
throw new InvalidOperationException($"Service provider couldn't fetch {nameof(IWindowsFormsEditorService)}.");
}
IUIService uiService = provider.GetService <IUIService>();
IComponent component = context.Instance as IComponent;
using (DpiHelper.EnterDpiAwarenessScope(User32.DPI_AWARENESS_CONTEXT.SYSTEM_AWARE))
{
_builderDialog ??= new DataGridViewCellStyleBuilder(provider, component);
if (uiService is not null)
{
_builderDialog.Font = (Font)uiService.Styles["DialogFont"];
}
if (value is DataGridViewCellStyle style)
{
_builderDialog.CellStyle = style;
}
_builderDialog.Context = context;
if (_builderDialog.ShowDialog() == DialogResult.OK)
{
value = _builderDialog.CellStyle;
}
}
return(value);
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if (provider is null)
{
throw new ArgumentNullException(nameof(provider));
}
IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (edSvc is null)
{
throw new InvalidOperationException("Service provider couldn't fetch " + nameof(edSvc));
}
IUIService uiService = (IUIService)provider.GetService(typeof(IUIService));
IComponent comp = context.Instance as IComponent;
using (DpiHelper.EnterDpiAwarenessScope(User32.DPI_AWARENESS_CONTEXT.SYSTEM_AWARE))
{
_builderDialog ??= new DataGridViewCellStyleBuilder(provider, comp);
if (uiService != null)
{
_builderDialog.Font = (Font)uiService.Styles["DialogFont"];
}
if (value is DataGridViewCellStyle dgvcs)
{
_builderDialog.CellStyle = dgvcs;
}
_builderDialog.Context = context;
if (_builderDialog.ShowDialog() == DialogResult.OK)
{
value = _builderDialog.CellStyle;
}
}
return(value);
}
