winform中的Balloon提示
1.扩展类库
namespace DvsCC
{
using System;
using System.Drawing;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Windows.Forms;
/// <summary>
/// Summary description for NativeMethods.
/// </summary>
public class NativeMethods
{
private const long WS_POPUP = 0x80000000;
private const long TTS_BALLOON = 0x40;
private const long TTS_NOFADE = 0x20;
private const int GWL_STYLE = -16;
private const int WM_USER = 0x0400;
private const int TTM_SETTIPBKCOLOR = WM_USER + 19;
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private NativeMethods() {}
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public static void SetBalloonStyle ( ToolTip toolTip )
{
NativeWindow window = GetNativeWindow ( toolTip );
NativeMethods.SetWindowLong ( window.Handle, GWL_STYLE , WS_POPUP | TTS_BALLOON | TTS_NOFADE );
}
public static void SetBackColor ( ToolTip toolTip, Color color )
{
int backColor = ColorTranslator.ToWin32( color );
NativeWindow window = GetNativeWindow ( toolTip );
//setting back color
SendMessage( window.Handle, TTM_SETTIPBKCOLOR, backColor, 0 );
}
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private static NativeWindow GetNativeWindow ( ToolTip toolTip )
{
FieldInfo windowField = toolTip.GetType().GetField("window", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance );
NativeWindow window = (NativeWindow)windowField.GetValue ( toolTip );
if ( window.Handle == IntPtr.Zero ) throw new ArgumentNullException ( "window handle is not crated." );
return window;
}
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[DllImport("user32.dll")]
private static extern long SetWindowLong(IntPtr hwnd,int index,long val);
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[DllImport("user32.dll")]
private static extern int SendMessage( IntPtr hwnd, int msg, int wParam, int lParam);
}
}
2.使用方法
NativeMethods.SetBalloonStyle ( toolTip1 );
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2.使用方法
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作者:jillzhang
出处:http://jillzhang.cnblogs.com/
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。
出处:http://jillzhang.cnblogs.com/
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。