86 lines
4.1 KiB
C#
86 lines
4.1 KiB
C#
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 Yaulw.Win32
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{
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/// <remarks>
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/// Gdi32.dll Entry Points * http://pinvoke.net/ *
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/// </remarks>
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public static class Gdi32
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{
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/// <summary>
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/// The BitBlt function performs a bit-block transfer of the color data corresponding to a rectangle of pixels from
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/// the specified source device context into a destination device context.
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/// </summary>
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/// <param name="hdcDest">A handle to the destination device context</param>
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/// <param name="xDest">The x-coordinate, in logical units, of the upper-left corner of the destination rectangle</param>
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/// <param name="yDest">The y-coordinate, in logical units, of the upper-left corner of the destination rectangle</param>
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/// <param name="wDest">he width, in logical units, of the source and destination rectangles</param>
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/// <param name="hDest">The height, in logical units, of the source and the destination rectangles</param>
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/// <param name="hdcSource">A handle to the source device context</param>
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/// <param name="xSrc">The x-coordinate, in logical units, of the upper-left corner of the source rectangle</param>
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/// <param name="ySrc">The y-coordinate, in logical units, of the upper-left corner of the source rectangle</param>
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/// <param name="RasterOp">A raster-operation code. These codes define how the color data for the source rectangle is to be combined with the color data for the destination rectangle to achieve the final color</param>
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/// <returns>If the function succeeds, the return value is nonzero</returns>
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[DllImport("gdi32.dll")]
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extern public static bool BitBlt(IntPtr hdcDest, int xDest, int yDest, int wDest, int hDest, IntPtr hdcSource, int xSrc, int ySrc, int RasterOp);
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/// <summary>
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/// This function creates a bitmap compatible with the device associated with the specified device context
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/// </summary>
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/// <param name="hdc">Handle to a device context</param>
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/// <param name="nWidth">Specifies the bitmap width, in pixels</param>
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/// <param name="nHeight">Specifies the bitmap height, in pixels</param>
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/// <returns>A handle to the bitmap indicates success. NULL indicates failure.</returns>
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[DllImport("gdi32.dll")]
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extern public static IntPtr CreateCompatibleBitmap(IntPtr hdc, int nWidth, int nHeight);
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/// <summary>
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/// This function creates a memory device context (DC) compatible with the specified device
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/// </summary>
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/// <param name="hdc">Handle to an existing device context</param>
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/// <returns>The handle to a memory device context indicates success. NULL indicates failure.</returns>
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[DllImport("gdi32.dll")]
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extern public static IntPtr CreateCompatibleDC(IntPtr hdc);
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/// <summary>
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///
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/// </summary>
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/// <param name="lpszDriver"></param>
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/// <param name="passNULL"></param>
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/// <param name="passNULL2"></param>
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/// <param name="passNULL3"></param>
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/// <returns></returns>
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[DllImport("gdi32.dll")]
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extern public static IntPtr CreateDC(string lpszDriver, IntPtr passNULL, IntPtr passNULL2, IntPtr passNULL3);
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/// <summary>
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///
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/// </summary>
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/// <param name="hDc"></param>
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/// <returns></returns>
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[DllImport("gdi32.dll")]
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extern public static IntPtr DeleteDC(IntPtr hDc);
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/// <summary>
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///
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/// </summary>
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/// <param name="hDc"></param>
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/// <returns></returns>
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[DllImport("gdi32.dll")]
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extern public static IntPtr DeleteObject(IntPtr hDc);
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/// <summary>
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///
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/// </summary>
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/// <param name="hdc"></param>
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/// <param name="bmp"></param>
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/// <returns></returns>
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[DllImport("gdi32.dll")]
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extern public static IntPtr SelectObject(IntPtr hdc, IntPtr bmp);
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}
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}
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