制作从屏幕右下角逐渐弹出的消息提示框

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);

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