gtooltipex.cs

语音视频功能 里面实现了基本的QQ与语音对话

using System;
using System.ComponentModel;
using System.Collections;
using System.Diagnostics;
using System.Windows.Forms;
using System.Drawing;
using System.Runtime.InteropServices;
using gowk.common;
namespace gowk.controls
{
	public enum GToolTipIcon:int
	{
		Null,Info,Warning,Error
	}
	public class GTooltipEX : System.ComponentModel.Component
	{
		TTNW ttnw;
		public GTooltipEX()
		{
		}
		private void WndProc(ref Message m)
		{
			switch(m.Msg)
			{
				case API.WM_MOUSEMOVE:
					this.Hide();
					break;
				case API.WM_PAINT:
					this.Paint(ref m);
					break;
				default:
					this.ttnw.DefWndProc(ref m);
					break;
			}
		}
		private void Paint(ref Message m)
		{
			this.ttnw.DefWndProc(ref m);return;
				
			Rectangle rect=new Rectangle();
			gowk.common.API.GetWindowRect(this.Handle,ref rect);
			if(rect.Width==0||rect.Height==0)
			{
				this.ttnw.DefWndProc(ref m);
				return;
			}
			System.IntPtr hdc=gowk.common.API.GetWindowDC(this.Handle);
			System.Drawing.Graphics g=System.Drawing.Graphics.FromHdc(hdc);
			Bitmap bm=new Bitmap(rect.Width,rect.Height);
			Graphics gbm=Graphics.FromImage(bm);
			System.IntPtr hbm=gbm.GetHdc();
			gowk.common.API.BitBlt(hbm,0,0,rect.Width,rect.Height,hdc,0,0,gowk.common.API.SRCCOPY);
			//bm.Save(@"c:\\gow.bmp");
			this.ttnw.DefWndProc(ref m);
			gowk.common.API.BitBlt(hdc,0,0,rect.Width,rect.Height,hbm,0,0,gowk.common.API.SRCCOPY);
		//	g.Clear(Color.White);


				

			gbm.ReleaseHdc(hbm);

			g.Dispose();
			gowk.common.API.ReleaseDC(this.Handle,hdc);
		}
		private class TTNW:System.Windows.Forms.NativeWindow
		{
			private GTooltipEX gt;
			public TTNW (GTooltipEX gt)
			{
				this.gt=gt;
			}
			protected override void WndProc(ref Message m)
			{
				this.gt.WndProc(ref m);
			}

		}
 
		private TOOLINFO_T CreateT(string text)
		{
			TOOLINFO_T t=new TOOLINFO_T();
			t.cbSize=System.Runtime.InteropServices.Marshal.SizeOf(typeof(TOOLINFO_T));
			t.uFlags=gowk.common.API.TTF_TRACK;
			t.lpszText=text;return t;
			
		}
		private void CreateHandle()
		{
			ttnw=new TTNW(this);  
			CreateParams params1 = new CreateParams();
			params1.ClassName = "tooltips_class32";
			params1.ExStyle = gowk.common.API.WS_EX_TOPMOST;
			params1.Style=gowk.common.API.TTS_BALLOON|gowk.common.API.WS_POPUP;//|gowk.common.API.TTS_ALWAYSTIP|2|0x0010|0x0100;
			ttnw.CreateHandle(params1);
			API.SendMessage(this.Handle, API.TTM_ADDTOOLW, true, 0);
		}
		public void Show(string title,string text,GToolTipIcon ico,Point p)
		{        
			if(this.IsHandleCreate)this.Close();
			this.CreateHandle();
			API.SendMessage(this.Handle,API.TTM_SETMAXTIPWIDTH,0,this.maxTipWidth);
			if(title!=null ||title!=string.Empty)
				SendMessage(this.Handle,Marshal.SystemDefaultCharSize==2?gowk.common.API.WM_USER+33:gowk.common.API.WM_USER+32,(int)ico,title);
			SendMessage(this.ttnw.Handle,Marshal.SystemDefaultCharSize==2?gowk.common.API.TTM_ADDTOOLW:gowk.common.API.TTM_ADDTOOLA,0,CreateT(text));
			
			gowk.common.API.SendMessage(this.ttnw.Handle,gowk.common.API.TTM_TRACKPOSITION,0,p.Y<<16 |p.X);
			SendMessage(this.ttnw.Handle,gowk.common.API.TTM_TRACKACTIVATE,1,CreateT(null));

		}
		public void Show(string text,Point p)
		{
			this.Show(null,text,GToolTipIcon.Null,p);
		}
		public void Close()
		{
			this.Hide();
		}
		public void Hide()
		{
			if(this.IsHandleCreate)
			{
				SendMessage(this.ttnw.Handle,gowk.common.API.TTM_TRACKACTIVATE,0,CreateT(null));
				this.ttnw.DestroyHandle();
			}
		}
		private bool IsHandleCreate
		{
			get{return this.Handle!=IntPtr.Zero;}
		}
		public int MaxTipWidth
		{
			get//{return (int)API.SendMessage(this.Handle,(int)API.TTM_GETMAXTIPWIDTH,0,0);}
			{
				return this.maxTipWidth;
			}
			set
			{
				if(this.maxTipWidth!=value)
				{
					API.SendMessage(this.Handle,API.TTM_SETMAXTIPWIDTH,0,value);
					this.maxTipWidth=value;
				}
			}
		}
		public IntPtr Handle
		{
			get{return this.ttnw==null?IntPtr.Zero:this.ttnw.Handle;}
		}
		int maxTipWidth=200;
		#region
		[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]
			internal class TOOLINFO_T
		{
			public int cbSize;
			public int uFlags;
			public IntPtr hwnd;
			public IntPtr uId;
			public System.Drawing.Rectangle rect;
			public IntPtr hinst;
			public string lpszText;
			public IntPtr lParam;
		}
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		internal static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, TOOLINFO_T lParam);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		internal static extern int SendMessage(IntPtr hWnd, int msg, int wParam, string lParam);
		#endregion
	}
}