#region Imports
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using System;
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using System.Security;
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using System.Windows.Forms;
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#endregion
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namespace DPumpHydr.WinFrmUI.RLT.Native
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{
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#region SubClassNative
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[SuppressUnmanagedCodeSecurity]
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internal class SubClass : NativeWindow
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{
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public delegate int SubClassWndProcEventHandler(ref Message m);
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public event SubClassWndProcEventHandler SubClassedWndProc;
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public SubClass(IntPtr Handle, bool _SubClass)
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{
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base.AssignHandle(Handle);
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SubClassed = _SubClass;
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}
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public bool SubClassed { get; set; } = false;
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protected override void WndProc(ref Message m)
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{
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if (SubClassed)
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{
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if (OnSubClassedWndProc(ref m) != 0)
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{
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return;
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}
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}
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base.WndProc(ref m);
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}
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public void CallDefaultWndProc(ref Message m)
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{
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base.WndProc(ref m);
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}
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#region HiWord Message Cracker
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public static int HiWord(int Number)
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{
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return (Number >> 16) & 0xffff;
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}
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#endregion
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#region LoWord Message Cracker
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public static int LoWord(int Number)
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{
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return Number & 0xffff;
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}
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#endregion
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#region MakeLong Message Cracker
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public static int MakeLong(int LoWord, int HiWord)
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{
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return (HiWord << 16) | (LoWord & 0xffff);
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}
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#endregion
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#region MakeLParam Message Cracker
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public static IntPtr MakeLParam(int LoWord, int HiWord)
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{
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return (IntPtr)((HiWord << 16) | (LoWord & 0xffff));
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}
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#endregion
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private int OnSubClassedWndProc(ref Message m)
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{
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if (SubClassedWndProc != null)
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{
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return SubClassedWndProc(ref m);
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}
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return 0;
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}
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}
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#endregion
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}
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