58 lines
2.2 KiB
C#
58 lines
2.2 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace Toolbox.Library
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{
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public class DragHelper
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{
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[DllImport("comctl32.dll")]
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public static extern bool InitCommonControls();
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[DllImport("comctl32.dll", CharSet = CharSet.Auto)]
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public static extern bool ImageList_BeginDrag(
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IntPtr himlTrack, // Handler of the image list containing the image to drag
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int iTrack, // Index of the image to drag
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int dxHotspot, // x-delta between mouse position and drag image
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int dyHotspot // y-delta between mouse position and drag image
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);
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[DllImport("comctl32.dll", CharSet = CharSet.Auto)]
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public static extern bool ImageList_DragMove(
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int x, // X-coordinate (relative to the form,
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// not the treeview) at which to display the drag image.
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int y // Y-coordinate (relative to the form,
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// not the treeview) at which to display the drag image.
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);
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[DllImport("comctl32.dll", CharSet = CharSet.Auto)]
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public static extern void ImageList_EndDrag();
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[DllImport("comctl32.dll", CharSet = CharSet.Auto)]
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public static extern bool ImageList_DragEnter(
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IntPtr hwndLock, // Handle to the control that owns the drag image.
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int x, // X-coordinate (relative to the treeview)
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// at which to display the drag image.
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int y // Y-coordinate (relative to the treeview)
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// at which to display the drag image.
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);
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[DllImport("comctl32.dll", CharSet = CharSet.Auto)]
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public static extern bool ImageList_DragLeave(
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IntPtr hwndLock // Handle to the control that owns the drag image.
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);
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[DllImport("comctl32.dll", CharSet = CharSet.Auto)]
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public static extern bool ImageList_DragShowNolock(
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bool fShow // False to hide, true to show the image
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);
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static DragHelper()
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{
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InitCommonControls();
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}
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}
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}
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