83 lines
2.3 KiB
C#
83 lines
2.3 KiB
C#
//credit: http://blogs.msdn.com/b/rickbrew/archive/2006/01/09/511003.aspx
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using System;
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using System.Windows.Forms;
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/// <summary>
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/// This class adds on to the functionality provided in System.Windows.Forms.ToolStrip.
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/// </summary>
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public class ToolStripEx : ToolStrip
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{
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/// <summary>
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/// Gets or sets whether the ToolStripEx honors item clicks when its containing form does
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/// not have input focus.
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/// </summary>
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public bool ClickThrough { get; set; } = true;
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protected override void WndProc(ref Message m)
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{
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base.WndProc(ref m);
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if (ClickThrough
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&& m.Msg == NativeConstants.WM_MOUSEACTIVATE
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&& m.Result == (IntPtr)NativeConstants.MA_ACTIVATEANDEAT)
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{
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m.Result = (IntPtr)NativeConstants.MA_ACTIVATE;
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}
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}
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}
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/// <summary>
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/// This class adds on to the functionality provided in System.Windows.Forms.MenuStrip.
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/// </summary>
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public class MenuStripEx : MenuStrip
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{
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/// <summary>
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/// Gets or sets whether the ToolStripEx honors item clicks when its containing form does
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/// not have input focus.
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/// </summary>
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public bool ClickThrough { get; set; } = true;
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protected override void WndProc(ref Message m)
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{
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base.WndProc(ref m);
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if (ClickThrough
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&& m.Msg == NativeConstants.WM_MOUSEACTIVATE
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&& m.Result == (IntPtr)NativeConstants.MA_ACTIVATEANDEAT)
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{
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m.Result = (IntPtr)NativeConstants.MA_ACTIVATE;
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}
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}
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}
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/// <summary>
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/// This class adds on to the functionality provided in System.Windows.Forms.MenuStrip.
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/// </summary>
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public class StatusStripEx : StatusStrip
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{
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/// <summary>
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/// Gets or sets whether the ToolStripEx honors item clicks when its containing form does
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/// not have input focus.
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/// </summary>
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public bool ClickThrough { get; set; } = true;
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protected override void WndProc(ref Message m)
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{
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base.WndProc(ref m);
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if (ClickThrough
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&& m.Msg == NativeConstants.WM_MOUSEACTIVATE
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&& m.Result == (IntPtr)NativeConstants.MA_ACTIVATEANDEAT)
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{
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m.Result = (IntPtr)NativeConstants.MA_ACTIVATE;
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}
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}
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}
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internal sealed class NativeConstants
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{
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private NativeConstants(){}
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internal const uint WM_MOUSEACTIVATE = 0x21;
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internal const uint MA_ACTIVATE = 1;
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internal const uint MA_ACTIVATEANDEAT = 2;
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internal const uint MA_NOACTIVATE = 3;
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internal const uint MA_NOACTIVATEANDEAT = 4;
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} |