123 lines
3.8 KiB
C#
123 lines
3.8 KiB
C#
using System;
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using System.Drawing;
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using System.Runtime.InteropServices;
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using EveOPreview.Services.Interop;
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namespace EveOPreview.Services.Implementation
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{
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sealed class WindowManager : IWindowManager
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{
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#region Private constants
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private const int WINDOW_SIZE_THRESHOLD = 300;
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#endregion
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public WindowManager()
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{
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// Composition is always enabled for Windows 8+
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this.IsCompositionEnabled =
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((Environment.OSVersion.Version.Major == 6) && (Environment.OSVersion.Version.Minor >= 2)) // Win 8 and Win 8.1
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|| (Environment.OSVersion.Version.Major >= 10) // Win 10
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|| DwmNativeMethods.DwmIsCompositionEnabled(); // In case of Win 7 an API call is requiredWin 7
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}
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public bool IsCompositionEnabled { get; }
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public IntPtr GetForegroundWindowHandle()
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{
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return User32NativeMethods.GetForegroundWindow();
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}
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public void ActivateWindow(IntPtr handle)
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{
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User32NativeMethods.SetForegroundWindow(handle);
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int style = User32NativeMethods.GetWindowLong(handle, InteropConstants.GWL_STYLE);
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if ((style & InteropConstants.WS_MINIMIZE) == InteropConstants.WS_MINIMIZE)
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{
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User32NativeMethods.ShowWindowAsync(handle, InteropConstants.SW_RESTORE);
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}
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}
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public void MinimizeWindow(IntPtr handle, bool enableAnimation)
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{
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if (enableAnimation)
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{
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User32NativeMethods.SendMessage(handle, InteropConstants.WM_SYSCOMMAND, InteropConstants.SC_MINIMIZE, 0);
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}
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else
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{
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WINDOWPLACEMENT param = new WINDOWPLACEMENT();
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param.length = Marshal.SizeOf(typeof(WINDOWPLACEMENT));
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User32NativeMethods.GetWindowPlacement(handle, ref param);
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param.showCmd = WINDOWPLACEMENT.SW_MINIMIZE;
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User32NativeMethods.SetWindowPlacement(handle, ref param);
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}
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}
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public void MoveWindow(IntPtr handle, int left, int top, int width, int height)
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{
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User32NativeMethods.MoveWindow(handle, left, top, width, height, true);
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}
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public void MaximizeWindow(IntPtr handle)
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{
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User32NativeMethods.ShowWindowAsync(handle, InteropConstants.SW_SHOWMAXIMIZED);
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}
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public (int Left, int Top, int Right, int Bottom) GetWindowPosition(IntPtr handle)
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{
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User32NativeMethods.GetWindowRect(handle, out RECT windowRectangle);
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return (windowRectangle.Left, windowRectangle.Top, windowRectangle.Right, windowRectangle.Bottom);
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}
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public bool IsWindowMaximized(IntPtr handle)
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{
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return User32NativeMethods.IsZoomed(handle);
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}
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public bool IsWindowMinimized(IntPtr handle)
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{
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return User32NativeMethods.IsIconic(handle);
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}
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public IDwmThumbnail GetLiveThumbnail(IntPtr destination, IntPtr source)
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{
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IDwmThumbnail thumbnail = new DwmThumbnail(this);
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thumbnail.Register(destination, source);
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return thumbnail;
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}
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public Image GetStaticThumbnail(IntPtr source)
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{
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var sourceContext = User32NativeMethods.GetDC(source);
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User32NativeMethods.GetClientRect(source, out RECT windowRect);
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var width = windowRect.Right - windowRect.Left;
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var height = windowRect.Bottom - windowRect.Top;
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// Check if there is anything to make thumbnail of
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if ((width < WINDOW_SIZE_THRESHOLD) || (height < WINDOW_SIZE_THRESHOLD))
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{
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return null;
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}
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var destContext = Gdi32NativeMethods.CreateCompatibleDC(sourceContext);
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var bitmap = Gdi32NativeMethods.CreateCompatibleBitmap(sourceContext, width, height);
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var oldBitmap = Gdi32NativeMethods.SelectObject(destContext, bitmap);
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Gdi32NativeMethods.BitBlt(destContext, 0, 0, width, height, sourceContext, 0, 0, Gdi32NativeMethods.SRCCOPY);
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Gdi32NativeMethods.SelectObject(destContext, oldBitmap);
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Gdi32NativeMethods.DeleteDC(destContext);
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User32NativeMethods.ReleaseDC(source, sourceContext);
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Image image = Image.FromHbitmap(bitmap);
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Gdi32NativeMethods.DeleteObject(bitmap);
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return image;
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}
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}
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} |