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Reenabled Compatibility-Mode thumbnails back

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This reverts commit de7edfa2c1.
This commit is contained in:
Anton Kasyanov
2021-01-29 19:08:18 +02:00
parent 6d3a83ac7b
commit e4229dcefc
12 changed files with 197 additions and 5 deletions
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32
Eve-O-Preview/Services/Implementation/WindowManager.cs
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@@ -14,7 +14,7 @@ namespace EveOPreview.Services.Implementation
public WindowManager()
{
// Composition is always enabled for Windows 8+
this.IsCompositionEnabled =
this.IsCompositionEnabled =
((Environment.OSVersion.Version.Major == 6) && (Environment.OSVersion.Version.Minor >= 2)) // Win 8 and Win 8.1
|| (Environment.OSVersion.Version.Major >= 10) // Win 10
|| DwmNativeMethods.DwmIsCompositionEnabled(); // In case of Win 7 an API call is requiredWin 7
@@ -89,5 +89,35 @@ namespace EveOPreview.Services.Implementation
return thumbnail;
}
public Image GetStaticThumbnail(IntPtr source)
{
var sourceContext = User32NativeMethods.GetDC(source);
User32NativeMethods.GetClientRect(source, out RECT windowRect);
var width = windowRect.Right - windowRect.Left;
var height = windowRect.Bottom - windowRect.Top;
// Check if there is anything to make thumbnail of
if ((width < WINDOW_SIZE_THRESHOLD) || (height < WINDOW_SIZE_THRESHOLD))
{
return null;
}
var destContext = Gdi32NativeMethods.CreateCompatibleDC(sourceContext);
var bitmap = Gdi32NativeMethods.CreateCompatibleBitmap(sourceContext, width, height);
var oldBitmap = Gdi32NativeMethods.SelectObject(destContext, bitmap);
Gdi32NativeMethods.BitBlt(destContext, 0, 0, width, height, sourceContext, 0, 0, Gdi32NativeMethods.SRCCOPY);
Gdi32NativeMethods.SelectObject(destContext, oldBitmap);
Gdi32NativeMethods.DeleteDC(destContext);
User32NativeMethods.ReleaseDC(source, sourceContext);
Image image = Image.FromHbitmap(bitmap);
Gdi32NativeMethods.DeleteObject(bitmap);
return image;
}
}
}