RCM/cStoreDc.cs

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namespace RCM
{
    #region Directives
    using System;
    using System.Runtime.InteropServices;
    using System.Drawing;
    #endregion

    #region StoreDc
    [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
    public class cStoreDc
    {
        [DllImport("gdi32.dll")]
        private static extern IntPtr CreateDCA([MarshalAs(UnmanagedType.LPStr)]string lpszDriver, [MarshalAs(UnmanagedType.LPStr)]string lpszDevice, [MarshalAs(UnmanagedType.LPStr)]string lpszOutput, int lpInitData);

        [DllImport("gdi32.dll")]
        private static extern IntPtr CreateDCW([MarshalAs(UnmanagedType.LPWStr)]string lpszDriver, [MarshalAs(UnmanagedType.LPWStr)]string lpszDevice, [MarshalAs(UnmanagedType.LPWStr)]string lpszOutput, int lpInitData);

        [DllImport("gdi32.dll")]
        private static extern IntPtr CreateDC(string lpszDriver, string lpszDevice, string lpszOutput, int lpInitData);

        [DllImport("gdi32.dll")]
        private static extern IntPtr CreateCompatibleDC(IntPtr hdc);

        [DllImport("gdi32.dll")]
        private static extern IntPtr CreateCompatibleBitmap(IntPtr hdc, int nWidth, int nHeight);

        [DllImport("gdi32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool DeleteDC(IntPtr hdc);

        [DllImport("gdi32.dll", PreserveSig = true)]
        private static extern IntPtr SelectObject(IntPtr hdc, IntPtr hgdiobj);

        [DllImport("gdi32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool DeleteObject(IntPtr hObject);

        private int _iHeight = 0;
        private int _iWidth = 0;
        private IntPtr _pHdc = IntPtr.Zero;
        private IntPtr _pBmp = IntPtr.Zero;
        private IntPtr _pBmpOld = IntPtr.Zero;

        public IntPtr Hdc
        {
            get { return _pHdc; }
        }

        public IntPtr HBmp
        {
            get { return _pBmp; }
        }

        public int Height
        {
            get { return _iHeight; }
            set
            {
                if (_iHeight != value)
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