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制作从屏幕右下角逐渐弹出的消息提示框

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文章来源: csdn
原文作者: nhconch
整理日期: 2005-03-01
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微软的每一个产品，无论功能还是界面设计都会带给我们一定的惊喜，比如OfficeXP、Office2003、Messenger的界面设计，早已成为众多软件竞相模仿的对象，就拿Messenger来说，我就见过好几套网络视频会议的软件都借鉴了它的界面风格。
　　前段时间因为要在原来的软件上增加一个快捷键提示窗体，这个提示窗要求在显示的时候比较醒目美观能引起用户注意，显示后不影响用户操作，能够关掉。很自然的就想到了Messenger那个从屏幕右下角逐渐弹出的消息提示窗体，不过相对Messenger我更喜欢QQ2004奥运版的配色风格，反正都是偷就多偷点吧，下面快捷键提示窗的最终效果：
　　　　快捷键提示窗样式

　　这个窗体有以下几个特点：
　　1、显示的时候是从屏幕右下角逐渐弹出的；
　　2、它是个无标题窗体，但它必须允许用户移动和改变大小，因此要用到无标题窗体拖动、改变大小的技术；
　　3、它是个不规则的窗体，主要是左上角和右上角是圆形导角，因此要为窗体创建外形，且窗体改变大小时必须重建；
　　4、它标题和内容显示区都有渐层色，标题还有几个小点点，在实现时使用取巧的方法，直接利用截图进行填充。

　　当然界面可以偷，代码就得老老实实的写的了，下面是界面设计图和实现代码：
　　　　快捷键提示窗的设计图

　界面formPSHotKey.frm内容　［内容较长，请点击此处找开/折叠］

object frmPSHotKey: TfrmPSHotKey
Left = 192
Top = 107
BorderStyle = bsNone
Caption = '快捷键提示'
ClientHeight = 168
ClientWidth = 343
Color = clWhite
Constraints.MinWidth = 350
Font.Charset = GB2312_CHARSET
Font.Color = clWindowText
Font.Height = -12
Font.Name = '宋体'
Font.Style = []
FormStyle = fsStayOnTop
OldCreateOrder = False
OnCreate = FormCreate
OnPaint = FormPaint
OnResize = FormResize
DesignSize = (
    343
    168)
PixelsPerInch = 96
TextHeight = 12
object imgTitleBar: TImage
    Left = 0
    Top = 0
    Width = 343
    Height = 12
    Cursor = crSizeAll
    Align = alTop
    AutoSize = True
    Center = True
    Picture.Data = {
      07544269746D6170EE010000424DEE010000000000006E000000280000003900
      00000C000000010004000000000080010000120B0000120B00000E0000000E00
      0000D79D8B00A83A1700F8E6D600C9775E00F6DFCB00FAEDE200F4D7BE00F5DA
      C200EAD2BF00FCF5EE00FEFBF800BE796B00FFFFFF0000000000BBBBBBBBBBBB
      BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB000D0D0888888888888
      888888888888888888888888888888888888888888888000BBBB666666666666
      6666666666666666666666666666666666666666666660008888777777777777
      777777777777777777777777777777777777777777777000666644CC44CC44CC
      44CC44CC44CC44CC44CC44CC44CC44CC44CC44CC44CC40007777231C231C231C
      231C231C231C231C231C231C231C231C231C231C231C200044CC503550355035
      503550355035503550355035503550355035503550355000231C999999999999
      9999999999999999999999999999999999999999999990005035AAAAAAAAAAAA
      AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0009999CCCCCCCCCCCC
      CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC000AAAABBBBBBBBBBBB
      BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB000CCCCBBBBBBBBBBBB
      BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB000BBBB}
    OnMouseDown = imgTitleBarMouseDown
    OnMouseMove = imgTitleBarMouseMove
end
object imgTitleBarBG: TImage
    Left = 248
    Top = 32
    Width = 7
    Height = 12
    AutoSize = True
    Picture.Data = {
      07544269746D617092000000424D920000000000000062000000280000000700
      00000C000000010004000000000030000000120B0000120B00000B0000000B00
      0000F4D7BE00F8E6D600F6DFCB00F5DAC200EAD2BF00FCF5EE00FEFBF800FAED
      E200BE796B00FFFFFF0000000000888888804444444000000000333333302222
      222011111110777777705555555066666660999999908888888088888880}
    Visible = False
end
object imgShapeBG: TImage
    Left = 280
    Top = 48
    Width = 3
    Height = 56
    AutoSize = True
    Picture.Data = {
      07544269746D6170DA010000424DDA01000000000000FA000000280000000300
      0000380000000100080000000000E0000000120B0000120B0000310000003100
      000000000000FFFFFF00FFFCFC00FFFDFD00FFF9F800FFFAF900FFFBFA00FFF6
      F300FFF7F400FFF9F700FFFCFB00FFF0EA00FFF3EE00FFF5F100FFFAF800FFE5
      D900FFE7DC00FFE9DF00FFEBE200FFEDE500FFEEE600FFEFE800FFF0E900FFF2
      EC00FFF4EF00FFF6F200FFF8F500FFE5D800FFE6D900FFE6DA00FFE7DB00FFE8
      DC00FFE8DD00FFE9DE00FFEAE000FFEBE100FFECE300FFEDE400FFEFE700FFF1
      EA00FFF3ED00FFF5F000FFF7F300FFF9F600FFFBF900FFFDFC00FFE9DD00FFEC
      E200FFF2EB001B1B1B000F0F0F001C1C1C001D1D1D001D1D1D001E1E1E001E1E
      1E00101010001F1F1F00202020002E2E2E002121210011111100222222002222
      220023232300121212002F2F2F00242424002525250013131300141414001414
      14002626260015151500161616000B0B0B002727270030303000171717002828
      28000C0C0C001818180018181800292929000D0D0D0019191900070707002A2A
      2A00080808001A1A1A001A1A1A002B2B2B0009090900040404000E0E0E000505
      05002C2C2C0006060600060606000A0A0A000A0A0A00020202002D2D2D000303
      030003030300}
    Visible = False
end
object SpeedButton1: TSpeedButton
    Left = 323
    Top = 16
    Width = 14
    Height = 14
    Anchors = [akTop, akRight]
    Flat = True
    Glyph.Data = {
      8A000000424D8A00000000000000420000002800000009000000090000000100
      04000000000048000000120B0000120B00000300000003000000BE604200FFFF
      FF00000000001111111110000200100111001000111110001000100010011100
      0001100010001110001110001100110000011000111010001000100011001001
      1100100010001111111110001001}
    OnClick = SpeedButton1Click
end
object Label1: TLabel
    Left = 16
    Top = 24
    Width = 60
    Height = 12
    Caption = '快捷键提示'
    Font.Charset = GB2312_CHARSET
    Font.Color = clWindowText
    Font.Height = -12
    Font.Name = '宋体'
    Font.Style = []
    ParentFont = False
    Transparent = True
end
object Label2: TLabel
    Left = 16
    Top = 99
    Width = 294
    Height = 12
    Caption = 'A：光标在“编号”列时，切换数据类型为“步骤类型”'
    Transparent = True
end
object Label3: TLabel
    Left = 16
    Top = 118
    Width = 318
    Height = 12
    Caption = 'B：光标在“编号”列时，切换数据类型为“工艺要求类型”'
    Transparent = True
end
object Label4: TLabel
    Left = 16
    Top = 138
    Width = 294
    Height = 12
    Caption = 'C：光标在“编号”列时，切换数据类型为“用料类型”'
    Transparent = True
end
object Label5: TLabel
    Left = 16
    Top = 42
    Width = 132
    Height = 12
    Caption = 'Alt+↓：打开下拉列表框'
    Transparent = True
end
object Label6: TLabel
    Left = 16
    Top = 61
    Width = 108
    Height = 12
    Caption = 'Ctrl+Ins：插入一行'
    Transparent = True
end
object Label7: TLabel
    Left = 16
    Top = 80
    Width = 120
    Height = 12
    Caption = 'Ctrl+Del：删除当前行'
    Transparent = True
end
object Label8: TLabel
    Left = 174
    Top = 42
    Width = 138
    Height = 12
    Caption = 'Ins：打开“工艺名称表”'
    Transparent = True
end
object Label9: TLabel
    Left = 174
    Top = 61
    Width = 90
    Height = 12
    Caption = 'F11：插入“℃”'
    Transparent = True
end
object Label10: TLabel
    Left = 174
    Top = 80
    Width = 90
    Height = 12
    Caption = 'F12：插入“′”'
    Transparent = True
end
object Label11: TLabel
    Left = 0
    Top = 165
    Width = 343
    Height = 3
    Cursor = crSizeNS
    Align = alBottom
    AutoSize = False
    Transparent = True
    OnMouseDown = Label11MouseDown
    OnMouseMove = Label11MouseMove
end
object Label12: TLabel
    Left = 0
    Top = 12
    Width = 3
    Height = 153
    Cursor = crSizeWE
    Align = alLeft
    AutoSize = False
    Transparent = True
    OnMouseDown = Label12MouseDown
end
object Label13: TLabel
    Left = 340
    Top = 12
    Width = 3
    Height = 153
    Cursor = crSizeWE
    Align = alRight
    AutoSize = False
    Transparent = True
    OnMouseDown = Label13MouseDown
end
end

　代码formPSHotKey.pas内容

unit formPSHotKey;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, StdCtrls, Buttons;

{========================================================================
DESIGN BY : 彭国辉
DATE:        2004-10-28
SITE:        http://kacarton.yeah.net/
BLOG:        http://blog.csdn.net/nhconch
EMAIL:       kacarton@sohu.com

文章为作者原创，转载前请先与本人联系，转载请注明文章出处、保留作者信息，谢谢支持！
=========================================================================}

type
  TfrmPSHotKey = class(TForm)
    imgTitleBar: TImage;
    imgTitleBarBG: TImage;
    imgShapeBG: TImage;
    SpeedButton1: TSpeedButton;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    Label10: TLabel;
    Label11: TLabel;
    Label12: TLabel;
    Label13: TLabel;
    procedure FormPaint(Sender: TObject);
    procedure imgTitleBarMouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure FormCreate(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
    procedure Label11MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure FormResize(Sender: TObject);
    procedure Label12MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure Label13MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure imgTitleBarMouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
    procedure Label11MouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmPSHotKey: TfrmPSHotKey;

implementation

{$R *.dfm}

procedure TfrmPSHotKey.FormCreate(Sender: TObject);
begin
    Tag := Height;
    Height := 16;
    //定位到屏幕右下角
    Top := Screen.Height - 40;
    Left := Screen.Width - Width - 2;
    Show;
    //从屏幕右下角逐渐弹出
    while Height<Tag do begin
        Height := Height + 5;
        Top := Top - 5;
        Update;
        Application.ProcessMessages;
        Sleep(10);
    end;
    Height := Tag;
    Tag := 0;
    Color := $F4BA9D;
    FormResize(Sender);
end;

procedure TfrmPSHotKey.FormPaint(Sender: TObject);
var
    i: integer;
    rgn: HRGN;
    r: TRect;
begin
    with Canvas do begin
        //利用imgTitleBarBG绘制标题背景
        for i:=0 to ClientWidth div imgTitleBarBG.Width do
            Draw(i*imgTitleBarBG.Width, 0, imgTitleBarBG.Picture.Bitmap);
        if Tag<>0 then Exit; //如果窗体正在弹出状态，不绘制内容面板背景
        //绘制内容面板背景
        SetRect(r, 5, 15, Width-5, Height-5);
        StretchDraw(r, imgShapeBG.Picture.Bitmap);
        Pen.Color := $C97F55;
        Brush.Style := bsClear;
        RoundRect(r.Left, r.Top, r.Right, r.Bottom, 6, 6);
        //绘制窗体边框
        rgn := CreateRectRgn(0,0,0,0);
        GetWindowRgn(Self.Handle, rgn);
        Brush.Color := $BE796B;
        windows.FrameRgn(Handle, rgn, Brush.Handle, 2, 2);
        DeleteObject(rgn);
    end;
end;

procedure TfrmPSHotKey.imgTitleBarMouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
    //在标题按下鼠标键时，允许移动窗体或改变窗体大小
    ReleaseCapture;
    if X < 5 then Perform(WM_SYSCOMMAND, $F004, 0)
    else if X > Width - 5 then Perform(WM_SYSCOMMAND, $F005, 0)
    else if Y < 3 then Perform(WM_SYSCOMMAND, $F003, 0)
    else Perform(WM_SYSCOMMAND, $F012, 0);
end;

procedure TfrmPSHotKey.FormResize(Sender: TObject);
var
    rgn, rgn2: HRGN;
begin
    if Tag<>0 then Exit;
    //窗体改变大小时重建Rgn
    rgn := CreateRoundRectRgn(0, 0, Width+1, Height, 4, 4);
    rgn2 := CreateRectRgn(0, 11, Width, Height);
    CombineRgn(rgn, rgn, rgn2, RGN_OR);
    SetWindowRgn(Handle, rgn, True);
    DeleteObject(rgn);
    DeleteObject(rgn2);
    Invalidate;
end;

procedure TfrmPSHotKey.SpeedButton1Click(Sender: TObject);
begin
    Close;
end;

//以下几个Label用来改变窗体大小
procedure TfrmPSHotKey.Label11MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
    ReleaseCapture;
    if X < 5 then Perform(WM_SYSCOMMAND, $F007, 0)
    else if X > Width - 5 then Perform(WM_SYSCOMMAND, $F008, 0)
    else Perform(WM_SYSCOMMAND, $F006, 0);
end;

procedure TfrmPSHotKey.Label12MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
    ReleaseCapture;
    Perform(WM_SYSCOMMAND, $F001, 0);
end;

procedure TfrmPSHotKey.Label13MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
    ReleaseCapture;
    Perform(WM_SYSCOMMAND, $F002, 0);
end;

//下面代码判断鼠标所在位置，并改变鼠标光标，提示用户可以拖动窗体或改变大小
procedure TfrmPSHotKey.imgTitleBarMouseMove(Sender: TObject;
  Shift: TShiftState; X, Y: Integer);
begin
    if X < 5 then imgTitleBar.Cursor := crSizeNWSE
    else if X > Width - 5 then imgTitleBar.Cursor := crSizeNESW
    else if Y < 3 then imgTitleBar.Cursor := crSizeNS
    else imgTitleBar.Cursor := crSizeAll;
end;

procedure TfrmPSHotKey.Label11MouseMove(Sender: TObject;
  Shift: TShiftState; X, Y: Integer);
begin
    if X < 5 then Label11.Cursor := crSizeNESW
    else if X > Width - 5 then Label11.Cursor := crSizeNWSE
    else Label11.Cursor := crSizeNS;
end;

end.

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制作从屏幕右下角逐渐弹出的消息提示框