制作从屏幕右下角逐渐弹出的消息提示框(4)

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.

（完）

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