108 lines
3.4 KiB
C#
108 lines
3.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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namespace PreviewToy
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{
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public partial class Preview : Form
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{
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private IntPtr m_hThumbnail;
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public IntPtr sourceWindow;
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private DwmApi.DWM_THUMBNAIL_PROPERTIES m_ThumbnailProperties;
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private bool has_been_set_up = false;
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private PreviewToyHandler spawner;
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public Preview(IntPtr sourceWindow, String title, PreviewToyHandler spawner, Size size)
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{
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has_been_set_up = false;
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this.sourceWindow = sourceWindow;
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this.spawner = spawner;
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InitializeComponent();
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SetUp();
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this.Text = title;
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has_been_set_up = true;
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}
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protected override void OnResize(EventArgs e)
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{
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RefreshPreview();
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base.OnResize(e);
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if (has_been_set_up)
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{
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this.spawner.set_sync_size(this.Size);
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}
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}
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protected override void OnMove(EventArgs e)
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{
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base.OnMove(e);
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this.spawner.set_preview_position(this.Handle, this.Location);
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}
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protected void RefreshPreview()
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{
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if (has_been_set_up)
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{
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m_ThumbnailProperties.rcDestination = new DwmApi.RECT(0, 0, ClientRectangle.Right, ClientRectangle.Bottom);
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DwmApi.DwmUpdateThumbnailProperties(m_hThumbnail, m_ThumbnailProperties);
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}
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}
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public void SetUp()
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{
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m_hThumbnail = DwmApi.DwmRegisterThumbnail(this.Handle, sourceWindow);
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m_ThumbnailProperties = new DwmApi.DWM_THUMBNAIL_PROPERTIES();
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m_ThumbnailProperties.dwFlags = DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_VISIBLE
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+ DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_OPACITY
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+ DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_RECTDESTINATION
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+ DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_SOURCECLIENTAREAONLY;
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m_ThumbnailProperties.opacity = 255;
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m_ThumbnailProperties.fVisible = true;
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m_ThumbnailProperties.fSourceClientAreaOnly = true;
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m_ThumbnailProperties.rcDestination = new DwmApi.RECT(0, 0, ClientRectangle.Right, ClientRectangle.Bottom);
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DwmApi.DwmUpdateThumbnailProperties(m_hThumbnail, m_ThumbnailProperties);
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}
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private void Preview_Load(object sender, EventArgs e)
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{
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}
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public void bring_client_to_foreground()
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{
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DwmApi.SetForegroundWindow(sourceWindow);
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int style = DwmApi.GetWindowLong(sourceWindow, DwmApi.GWL_STYLE);
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if ((style & DwmApi.WS_MAXIMIZE) == DwmApi.WS_MAXIMIZE)
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{
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//It's maximized
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}
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else if ((style & DwmApi.WS_MINIMIZE) == DwmApi.WS_MINIMIZE)
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{
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DwmApi.ShowWindowAsync(sourceWindow, DwmApi.SW_SHOWNORMAL);
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}
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}
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private void render_area_Click(object sender, EventArgs e)
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{
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bring_client_to_foreground();
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}
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public void set_render_area_size(Size size)
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{
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this.Size = size;
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}
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}
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} |