送你个例子unit Unit1;
interfaceuses
Windows, Buttons, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;
typeTForm1 = class(TForm)
procedure FormResize(Sender: TObject);
private
CaptionBtn : TRect;
procedure DrawCaptButton;
procedure WMNCPaint(var Msg : TWMNCPaint); message WM_NCPaint;
procedure WMNCActivate(var Msg : TWMNCActivate); message WM_NCACTIVATE;
procedure WMSetText(var Msg : TWMSetText); message WM_SETTEXT;
procedure WMNCHitTest(var Msg : TWMNCHitTest); message WM_NCHITTEST;
procedure WMNCLButtonDown(var Msg : TWMNCLButtonDown); message WM_NCLBUTTONDOWN;
public
{ Public declarations }
end;var
Form1: TForm1;
implementation
const
htCaptionBtn = htSizeLast + 1;
{$R *.DFM}
procedure TForm1.DrawCaptButton;
//file://drawcapbuttton过程的具体实现
var
xFrame,
yFrame,
xSize,
ySize : Integer;
R : TRect;
begin
xFrame := GetSystemMetrics(SM_CXFRAME);
yFrame := GetSystemMetrics(SM_CYFRAME);
//file://把窗口的宽度置于变量xFrame,把窗口的高度置于变量yFrame
xSize:= GetSystemMetrics(SM_CXSIZE);
ySize:= GetSystemMetrics(SM_CYSIZE);
// 把标题栏按钮的宽度置于变量xSize,把标题栏按钮的高度置于变量ySize
CaptionBtn := Bounds(Width - xFrame - 4*xSize + 2,
yFrame + 2, xSize - 2, ySize - 4);
//file://定义出新的标题按钮的位置,值放在变量CaptionBtn中
Canvas.Handle := GetWindowDC(Self.Handle);
//file://得到窗口的句柄
Canvas.Font.Name := 'Symbol';
Canvas.Font.Color := clBlue;
Canvas.Font.Style := [fsBold];
Canvas.Pen.Color := clYellow;
Canvas.Brush.Color := clBtnFace;
//file://定义画布的字体、画笔、刷子等属性
try
DrawButtonFace(Canvas, CaptionBtn, 1, bsAutoDetect, False, False, False);
//file://在画布上画出定义的按钮
R := Bounds(Width - xFrame - 4 * xSize + 2,
yFrame + 3, xSize - 6, ySize - 7);
//file://在新按钮上画出一个小矩形
with CaptionBtn do
Canvas.TextRect(R, R.Left + 2, R.Top - 1, 'W');
//file://在上面画出的小矩形上填写一个字符'w'字符
finally
ReleaseDC(Self.Handle, Canvas.Handle);
Canvas.Handle := 0;
//file://容错处理,如果出现异常,把句柄释放掉
end;
end;
procedure TForm1.WMNCPaint(var Msg : TWMNCPaint);
//WMNCPaint过程的具体实现,该过程在绘制窗口时被调用
begin
inherited;//继承默认的消息处理程序
DrawCaptButton;//对按钮进行重画
end;
procedure TForm1.WMNCActivate(var Msg : TWMNCActivate);
// WMNCActivate过程与WMNCPaint过程实现方法相同,该过程在窗口的非客户区要更改为激活状态或非激活状态时被调用
begin
inherited;
DrawCaptButton;
end;
procedure TForm1.WMSetText(var Msg : TWMSetText);
// WMSetText过程与WMNCPaint过程实现方法相同,该过程在设置窗口的文本时被调用
begin
inherited;
DrawCaptButton;
end;
procedure TForm1.WMNCHitTest(var Msg : TWMNCHitTest);
//file:// WMNCHitTest过程与WMNCPaint过程实现方法相同,该过程在光标移动或鼠标按钮被按下或鼠标按钮被释放时调用
begin
inherited;
with Msg do
if PtInRect(CaptionBtn, Point(XPos - Left, YPos - Top)) then
Result := htCaptionBtn;//判断鼠标所在位置是否在新按钮的矩形范围内,如果在返回新按钮的标识值
end;
procedure TForm1.WMNCLButtonDown(var Msg : TWMNCLButtonDown);
// WMNCLButtonDown过程与WMNCPaint过程实现方法相同,当光标处于窗口非客户区范围内鼠标左键被按下时调用该过程
begin
inherited;
if (Msg.HitTest = htCaptionBtn) then
ShowMessage('你点击的是标题栏上的新按钮');
// file://判断被点击的是否是新按钮,如果是显示上面的信息,在这里你可以按你的需要编写程序代码
end;
procedure TForm1.FormResize(Sender: TObject);
begin
Perform(WM_NCACTIVATE, Word(Active), 0);
//file://如果窗口大小改变则重画标题栏
end;
end.
interfaceuses
Windows, Buttons, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;
typeTForm1 = class(TForm)
procedure FormResize(Sender: TObject);
private
CaptionBtn : TRect;
procedure DrawCaptButton;
procedure WMNCPaint(var Msg : TWMNCPaint); message WM_NCPaint;
procedure WMNCActivate(var Msg : TWMNCActivate); message WM_NCACTIVATE;
procedure WMSetText(var Msg : TWMSetText); message WM_SETTEXT;
procedure WMNCHitTest(var Msg : TWMNCHitTest); message WM_NCHITTEST;
procedure WMNCLButtonDown(var Msg : TWMNCLButtonDown); message WM_NCLBUTTONDOWN;
public
{ Public declarations }
end;var
Form1: TForm1;
implementation
const
htCaptionBtn = htSizeLast + 1;
{$R *.DFM}
procedure TForm1.DrawCaptButton;
//file://drawcapbuttton过程的具体实现
var
xFrame,
yFrame,
xSize,
ySize : Integer;
R : TRect;
begin
xFrame := GetSystemMetrics(SM_CXFRAME);
yFrame := GetSystemMetrics(SM_CYFRAME);
//file://把窗口的宽度置于变量xFrame,把窗口的高度置于变量yFrame
xSize:= GetSystemMetrics(SM_CXSIZE);
ySize:= GetSystemMetrics(SM_CYSIZE);
// 把标题栏按钮的宽度置于变量xSize,把标题栏按钮的高度置于变量ySize
CaptionBtn := Bounds(Width - xFrame - 4*xSize + 2,
yFrame + 2, xSize - 2, ySize - 4);
//file://定义出新的标题按钮的位置,值放在变量CaptionBtn中
Canvas.Handle := GetWindowDC(Self.Handle);
//file://得到窗口的句柄
Canvas.Font.Name := 'Symbol';
Canvas.Font.Color := clBlue;
Canvas.Font.Style := [fsBold];
Canvas.Pen.Color := clYellow;
Canvas.Brush.Color := clBtnFace;
//file://定义画布的字体、画笔、刷子等属性
try
DrawButtonFace(Canvas, CaptionBtn, 1, bsAutoDetect, False, False, False);
//file://在画布上画出定义的按钮
R := Bounds(Width - xFrame - 4 * xSize + 2,
yFrame + 3, xSize - 6, ySize - 7);
//file://在新按钮上画出一个小矩形
with CaptionBtn do
Canvas.TextRect(R, R.Left + 2, R.Top - 1, 'W');
//file://在上面画出的小矩形上填写一个字符'w'字符
finally
ReleaseDC(Self.Handle, Canvas.Handle);
Canvas.Handle := 0;
//file://容错处理,如果出现异常,把句柄释放掉
end;
end;
procedure TForm1.WMNCPaint(var Msg : TWMNCPaint);
//WMNCPaint过程的具体实现,该过程在绘制窗口时被调用
begin
inherited;//继承默认的消息处理程序
DrawCaptButton;//对按钮进行重画
end;
procedure TForm1.WMNCActivate(var Msg : TWMNCActivate);
// WMNCActivate过程与WMNCPaint过程实现方法相同,该过程在窗口的非客户区要更改为激活状态或非激活状态时被调用
begin
inherited;
DrawCaptButton;
end;
procedure TForm1.WMSetText(var Msg : TWMSetText);
// WMSetText过程与WMNCPaint过程实现方法相同,该过程在设置窗口的文本时被调用
begin
inherited;
DrawCaptButton;
end;
procedure TForm1.WMNCHitTest(var Msg : TWMNCHitTest);
//file:// WMNCHitTest过程与WMNCPaint过程实现方法相同,该过程在光标移动或鼠标按钮被按下或鼠标按钮被释放时调用
begin
inherited;
with Msg do
if PtInRect(CaptionBtn, Point(XPos - Left, YPos - Top)) then
Result := htCaptionBtn;//判断鼠标所在位置是否在新按钮的矩形范围内,如果在返回新按钮的标识值
end;
procedure TForm1.WMNCLButtonDown(var Msg : TWMNCLButtonDown);
// WMNCLButtonDown过程与WMNCPaint过程实现方法相同,当光标处于窗口非客户区范围内鼠标左键被按下时调用该过程
begin
inherited;
if (Msg.HitTest = htCaptionBtn) then
ShowMessage('你点击的是标题栏上的新按钮');
// file://判断被点击的是否是新按钮,如果是显示上面的信息,在这里你可以按你的需要编写程序代码
end;
procedure TForm1.FormResize(Sender: TObject);
begin
Perform(WM_NCACTIVATE, Word(Active), 0);
//file://如果窗口大小改变则重画标题栏
end;
end.
没有边框
然后自己做一个边框,处理鼠标移动消息
procedure TForm1.Panel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
const
SC_DragMove = $F012; // a magic number
begin
ReleaseCapture;
Form1.perform(WM_SysCommand, SC_DragMove, 0);
end;
但是有缺陷,窗体向上不能移出屏幕,需要自己写代码记录鼠标位置。