662a6786d2
------ #### ryControls V2.1.2102.2801 - *.[新增]新增部分WinAPI的注释。 - *.[修复]修复Gdu.WinformUI在开发环境中有时无法拖动修改窗体大小的BUG。
60 lines
2.1 KiB
C#
60 lines
2.1 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.Runtime.InteropServices;
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using System.Text;
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namespace WinAPI
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{
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/// <summary>
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///
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/// </summary>
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public class GDI32
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{
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/// <summary>
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/// 删除一个逻辑笔、画笔、字体、位图、区域或者调色板，释放所有与该对象有关的系统资源，在对象被删除之后，指定的句柄也就失效了。
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/// </summary>
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/// <param name="hObject"></param>
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/// <returns></returns>
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[DllImport("gdi32")]
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public static extern bool DeleteObject(IntPtr hObject);
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/// <summary>
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/// 选择一对象到指定的设备上下文环境中，该新对象替换先前的相同类型的对象。
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/// </summary>
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/// <param name="hdc"></param>
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/// <param name="hgdiobj"></param>
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/// <returns></returns>
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[DllImport("gdi32")]
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public static extern IntPtr SelectObject(IntPtr hdc, IntPtr hgdiobj);
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/// <summary>
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/// 创建一个与指定设备兼容的内存设备上下文环境（DC）。
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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", SetLastError = true)]
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public static extern IntPtr CreateCompatibleDC(IntPtr hdc);
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/// <summary>
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/// 为一个设备创建设备上下文环境。
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/// </summary>
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/// <param name="driverName"></param>
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/// <param name="deviceName"></param>
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/// <param name="output"></param>
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/// <param name="lpInitData"></param>
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/// <returns></returns>
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[DllImport("gdi32")]
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public static extern IntPtr CreateDC(
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String driverName,
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String deviceName,
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String output,
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IntPtr lpInitData);
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/// <summary>
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/// 删除指定的设备上下文环境（Dc）。
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/// </summary>
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/// <param name="dc"></param>
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/// <returns></returns>
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[DllImport("gdi32")]
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public static extern bool DeleteDC(
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IntPtr dc);
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}
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}
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