77 lines
1.8 KiB
C#
77 lines
1.8 KiB
C#
using System;
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using EveOPreview.DwmInterop;
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namespace EveOPreview.DwmAPI
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{
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class DwmThumbnail : IDwmThumbnail
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{
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#region Private fields
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private readonly IWindowManager _windowManager;
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private IntPtr _handle;
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private DWM_THUMBNAIL_PROPERTIES _properties;
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#endregion
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public DwmThumbnail(IWindowManager windowManager)
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{
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this._windowManager = windowManager;
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}
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public void Register(IntPtr destination, IntPtr source)
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{
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this._properties = new DWM_THUMBNAIL_PROPERTIES();
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this._properties.dwFlags = DWM_TNP_CONSTANTS.DWM_TNP_VISIBLE
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+ DWM_TNP_CONSTANTS.DWM_TNP_OPACITY
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+ DWM_TNP_CONSTANTS.DWM_TNP_RECTDESTINATION
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+ DWM_TNP_CONSTANTS.DWM_TNP_SOURCECLIENTAREAONLY;
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this._properties.opacity = 255;
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this._properties.fVisible = true;
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this._properties.fSourceClientAreaOnly = true;
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if (!this._windowManager.IsCompositionEnabled)
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{
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return;
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}
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this._handle = DwmApiNativeMethods.DwmRegisterThumbnail(destination, source);
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}
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public void Unregister()
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{
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if (!this._windowManager.IsCompositionEnabled)
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{
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return;
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}
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try
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{
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DwmApiNativeMethods.DwmUnregisterThumbnail(this._handle);
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}
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catch (ArgumentException)
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{
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}
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}
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public void Move(int left, int top, int right, int bottom)
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{
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this._properties.rcDestination = new RECT(left, top, right, bottom);
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}
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public void Update()
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{
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if (!this._windowManager.IsCompositionEnabled)
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{
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return;
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}
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try
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{
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DwmApiNativeMethods.DwmUpdateThumbnailProperties(this._handle, this._properties);
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}
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catch (ArgumentException)
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{
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//This exception will be thrown if the EVE client disappears while this method is running
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}
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}
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}
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}
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