// COPYRIGHT (C) Tom. ALL RIGHTS RESERVED.
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// THE AntdUI PROJECT IS AN WINFORM LIBRARY LICENSED UNDER THE Apache-2.0 License.
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// LICENSED UNDER THE Apache License, VERSION 2.0 (THE "License")
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// YOU MAY NOT USE THIS FILE EXCEPT IN COMPLIANCE WITH THE License.
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// YOU MAY OBTAIN A COPY OF THE LICENSE AT
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING, SOFTWARE
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// DISTRIBUTED UNDER THE LICENSE IS DISTRIBUTED ON AN "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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// SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING PERMISSIONS AND
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// LIMITATIONS UNDER THE License.
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// GITEE: https://gitee.com/antdui/AntdUI
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// GITHUB: https://github.com/AntdUI/AntdUI
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// CSDN: https://blog.csdn.net/v_132
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// QQ: 17379620
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using System;
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using System.Drawing;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace AntdUI
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{
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internal class Win32
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{
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#region LayeredWindowSDK
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#region 初始化
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static IntPtr screenDC, memDc;
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static Win32()
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{
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screenDC = GetDC(IntPtr.Zero);
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memDc = CreateCompatibleDC(screenDC);
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}
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~Win32()
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{
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DeleteDC(memDc);
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ReleaseDC(IntPtr.Zero, screenDC);
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}
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#endregion
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public static void SetBits(Bitmap? bmp, Rectangle rect, IntPtr intPtr, byte a = 255)
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{
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if (bmp == null) return;
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IntPtr hBitmap = bmp.GetHbitmap(Color.FromArgb(0)), oldBits = SelectObject(memDc, hBitmap);
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try
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{
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var srcLoc = new Win32Point(0, 0);
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var blendFunc = new BLENDFUNCTION
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{
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BlendOp = AC_SRC_OVER,
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SourceConstantAlpha = a,
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AlphaFormat = AC_SRC_ALPHA,
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BlendFlags = 0
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};
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var topLoc = new Win32Point(rect.X, rect.Y);
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var topSize = new Win32Size(rect.Width, rect.Height);
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UpdateLayeredWindow(intPtr, screenDC, ref topLoc, ref topSize, memDc, ref srcLoc, 0, ref blendFunc, ULW_ALPHA);
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}
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finally
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{
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if (hBitmap != IntPtr.Zero)
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{
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SelectObject(memDc, oldBits);
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DeleteObject(hBitmap);
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}
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}
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}
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[StructLayout(LayoutKind.Sequential)]
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struct Win32Size
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{
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public int cx, cy;
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public Win32Size(int x, int y)
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{
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cx = x;
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cy = y;
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}
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}
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[StructLayout(LayoutKind.Sequential)]
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struct Win32Point
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{
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public int x, y;
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public Win32Point(int x, int y)
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{
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this.x = x;
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this.y = y;
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}
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct BLENDFUNCTION
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{
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public byte BlendOp;
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public byte BlendFlags;
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public byte SourceConstantAlpha;
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public byte AlphaFormat;
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}
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const byte AC_SRC_OVER = 0;
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const int ULW_ALPHA = 2;
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const byte AC_SRC_ALPHA = 1;
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[DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]
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static extern IntPtr CreateCompatibleDC(IntPtr hDC);
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[DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]
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static extern IntPtr GetDC(IntPtr hWnd);
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[DllImport("gdi32.dll", ExactSpelling = true)]
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static extern IntPtr SelectObject(IntPtr hDC, IntPtr hObj);
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[DllImport("user32.dll", ExactSpelling = true)]
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static extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);
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[DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]
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static extern int DeleteDC(IntPtr hDC);
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[DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]
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static extern int DeleteObject(IntPtr hObj);
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/// <summary>
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/// 分层窗口
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/// </summary>
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/// <param name="hwnd">一个分层窗口的句柄。分层窗口在用CreateWindowEx函数创建窗口时应指定WS_EX_LAYERED扩展样式。 Windows 8： WS_EX_LAYERED扩展样式支持顶级窗口和子窗口。之前的Windows版本中WS_EX_LAYERED扩展样式仅支持顶级窗口</param>
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/// <param name="hdcDst">屏幕的设备上下文(DC)句柄。如果指定为NULL，那么将会在调用函数时自己获得。它用来在窗口内容更新时与调色板颜色匹配。如果hdcDst为NULL，将会使用默认调色板。如果hdcSrc指定为NULL，那么hdcDst必须指定为NULL。</param>
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/// <param name="pptDst">指向分层窗口相对于屏幕的位置的POINT结构的指针。如果保持当前位置不变，pptDst可以指定为NULL。</param>
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/// <param name="psize">指向分层窗口的大小的SIZE结构的指针。如果窗口的大小保持不变，psize可以指定为NULL。如果hdcSrc指定为NULL，psize必须指定为NULL。</param>
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/// <param name="hdcSrc">分层窗口绘图表面的设备上下文句柄。这个句柄可以通过调用函数CreateCompatibleDC获得。如果窗口的形状和可视范围保持不变，hdcSrc可以指定为NULL。</param>
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/// <param name="pptSrc">指向分层窗口绘图表面在设备上下文位置的POINT结构的指针。如果hdcSrc指定为NULL，pptSrc就应该指定为NULL。</param>
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/// <param name="crKey">指定合成分层窗口时使用的颜色值。要生成一个类型为COLORREF的值，使用RGB宏。</param>
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/// <param name="pblend">指向指定合成分层窗口时使用的透明度结构的指针。</param>
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/// <param name="dwFlags">可以是以下值之一。如果hdcSrc指定为NULL，dwFlags应该指定为0。</param>
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/// <returns></returns>
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[DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]
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static extern int UpdateLayeredWindow(IntPtr hwnd, IntPtr hdcDst, ref Win32Point pptDst, ref Win32Size psize, IntPtr hdcSrc, ref Win32Point pptSrc, int crKey, ref BLENDFUNCTION pblend, int dwFlags);
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#endregion
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#region 文本框
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[DllImport("imm32.dll")]
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public static extern IntPtr ImmGetContext(IntPtr hWnd);
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[DllImport("Imm32.dll")]
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public static extern bool ImmReleaseContext(IntPtr hWnd, IntPtr hIMC);
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[DllImport("Imm32.dll", CharSet = CharSet.Unicode)]
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public static extern int ImmGetCompositionString(IntPtr hIMC, int dwIndex, byte[] lpBuf, int dwBufLen);
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[DllImport("imm32.dll")]
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public static extern bool ImmSetCandidateWindow(IntPtr hImc, ref CANDIDATEFORM fuck);
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[DllImport("imm32.dll")]
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public static extern bool ImmSetCompositionWindow(IntPtr hIMC, ref COMPOSITIONFORM lpCompForm);
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[DllImport("imm32.dll")]
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public static extern bool ImmSetCompositionFont(IntPtr hIMC, ref LOGFONT logFont);
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public const int SRCCOPY = 0x00CC0020;
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public const int GCS_COMPSTR = 0x0008;
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public const int GCS_RESULTSTR = 0x0800;
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public const int WM_IME_REQUEST = 0x0288;
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public const int WM_IME_COMPOSITION = 0x010F;
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public const int WM_IME_ENDCOMPOSITION = 0x010E;
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public const int WM_IME_STARTCOMPOSITION = 0x010D;
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// bit field for IMC_SETCOMPOSITIONWINDOW, IMC_SETCANDIDATEWINDOW
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public const int CFS_DEFAULT = 0x0000;
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public const int CFS_RECT = 0x0001;
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public const int CFS_POINT = 0x0002;
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public const int CFS_FORCE_POSITION = 0x0020;
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public const int CFS_CANDIDATEPOS = 0x0040;
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public const int CFS_EXCLUDE = 0x0080;
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public struct CANDIDATEFORM
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{
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public int dwIndex;
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public int dwStyle;
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public Point ptCurrentPos;
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public Rectangle rcArea;
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}
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public struct COMPOSITIONFORM
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{
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public int dwStyle;
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public Point ptCurrentPos;
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public Rectangle rcArea;
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}
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public struct LOGFONT
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{
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public int lfHeight;
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public int lfWidth;
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public int lfEscapement;
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public int lfOrientation;
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public int lfWeight;
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public byte lfItalic;
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public byte lfUnderline;
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public byte lfStrikeOut;
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public byte lfCharSet;
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public byte lfOutPrecision;
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public byte lfClipPrecision;
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public byte lfQuality;
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public byte lfPitchAndFamily;
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public string lfFaceName;
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}
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private static byte[] m_byString = new byte[1024];
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public static string? ImmGetCompositionString(IntPtr hIMC, int dwIndex)
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{
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if (hIMC == IntPtr.Zero) return null;
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int nLen = ImmGetCompositionString(hIMC, dwIndex, m_byString, m_byString.Length);
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return Encoding.Unicode.GetString(m_byString, 0, nLen);
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}
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#endregion
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#region 剪贴板
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internal static string? GetClipBoardText()
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{
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IntPtr handle = default, pointer = default;
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try
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{
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if (!OpenClipboard(IntPtr.Zero)) return null;
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handle = GetClipboardData(13);
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if (handle == default) return null;
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pointer = GlobalLock(handle);
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if (pointer == default) return null;
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var size = GlobalSize(handle);
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var buff = new byte[size];
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Marshal.Copy(pointer, buff, 0, size);
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return Encoding.Unicode.GetString(buff).TrimEnd('\0');
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}
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catch
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{
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return null;
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}
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finally
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{
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if (pointer != default) GlobalUnlock(handle);
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CloseClipboard();
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}
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}
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internal static bool SetClipBoardText(string? text)
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{
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IntPtr hGlobal = default;
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try
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{
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if (!OpenClipboard(IntPtr.Zero)) return false;
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if (!EmptyClipboard()) return false;
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if (text == null) return true;
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var bytes = (text.Length + 1) * 2;
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hGlobal = Marshal.AllocHGlobal(bytes);
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if (hGlobal == default) return false;
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var target = GlobalLock(hGlobal);
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if (target == default) return false;
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try
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{
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Marshal.Copy(text.ToCharArray(), 0, target, text.Length);
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}
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finally
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{
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GlobalUnlock(target);
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}
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if (SetClipboardData(13, hGlobal) == default) return false;
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hGlobal = default;
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return true;
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}
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catch { return false; }
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finally
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{
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if (hGlobal != default) Marshal.FreeHGlobal(hGlobal);
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CloseClipboard();
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}
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}
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[DllImport("User32.dll", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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extern static bool IsClipboardFormatAvailable(uint format);
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[DllImport("User32.dll", SetLastError = true)]
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extern static IntPtr GetClipboardData(uint uFormat);
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[DllImport("kernel32.dll", SetLastError = true)]
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extern static IntPtr GlobalLock(IntPtr hMem);
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[DllImport("Kernel32.dll", SetLastError = true)]
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extern static int GlobalSize(IntPtr hMem);
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[DllImport("kernel32.dll", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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extern static bool GlobalUnlock(IntPtr hMem);
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/// <summary>
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/// 打开剪切板
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/// </summary>
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/// <param name="hWndNewOwner"></param>
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[DllImport("User32.dll")]
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extern static bool OpenClipboard(IntPtr hWndNewOwner);
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/// <summary>
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/// 关闭剪切板
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/// </summary>
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[DllImport("User32.dll")]
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extern static bool CloseClipboard();
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/// <summary>
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/// 清空剪贴板
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/// </summary>
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/// <returns></returns>
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[DllImport("User32.dll")]
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extern static bool EmptyClipboard();
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/// <summary>
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/// 设置剪切板内容
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/// </summary>
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/// <param name="uFormat"></param>
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/// <param name="hMem"></param>
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[DllImport("User32.dll")]
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extern static IntPtr SetClipboardData(uint uFormat, IntPtr hMem);
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#endregion
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}
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}
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