我把一个窗体变成了不规则型,想在窗体上画上边框,代码如下:
procedure TForm1.FormCreate(Sender: TObject);
var
hr: THandle;
begin
hr := CreateRoundRectRgn(2, 2, Width -2, Height - 2, 20, 20);
Canvas.Brush.Color := clRed;
FrameRgn(handle, hr, Canvas.Brush.Handle, 1, 1);
SetWindowRgn(handle, hr, true);
end;
研究了好几天,可怎么也画不上,请大家指点,谢谢。
procedure TForm1.FormCreate(Sender: TObject);
var
hr: THandle;
begin
hr := CreateRoundRectRgn(2, 2, Width -2, Height - 2, 20, 20);
Canvas.Brush.Color := clRed;
FrameRgn(handle, hr, Canvas.Brush.Handle, 1, 1);
SetWindowRgn(handle, hr, true);
end;
研究了好几天,可怎么也画不上,请大家指点,谢谢。
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;type
TForm1 = class(TForm)
procedure FormCreate(Sender: TObject);
private
procedure DrawFormLine;
procedure WMNCPaint(var Msg : TWMNCPaint); message WM_NCPAINT;
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.DrawFormLine;
var
dc : hDc;
Pen : hPen;
OldPen : hPen;
OldBrush : hBrush;
begin
dc := GetWindowDC(Handle);
Pen := CreatePen(PS_SOLID, 8, RGB(0, 0, 255));
OldPen := SelectObject(dc, Pen);
OldBrush := SelectObject(dc, GetStockObject(NULL_BRUSH));
Self.Refresh;
RoundRect(dc,0,21,Width,Height,80,80);
SelectObject(dc, OldBrush);
SelectObject(dc, OldPen);
DeleteObject(Pen);
ReleaseDC(Handle, Canvas.Handle);
end;procedure TForm1.WMNCPaint(var Msg: TWMNCPaint);
begin
DrawFormLine;
end;procedure TForm1.FormCreate(Sender: TObject);
var
hr:THandle;
begin
hr:=CreateRoundRectRgn(0,21,Width,Height,80,80);
SetWindowRgn(handle,hr,true);
end;end.
-------------------------------------------------
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure FormPaint(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;
//设置五角星区域顶点
const
RgnPoints : array[1..10] of TPoint =
((X:203;Y:22), (X:157;Y:168), (X:3;Y:168),
(X:128;Y:257), (X:81;Y:409), (X:203;Y:334),
(X:325;Y:409), (X:278;Y:257), (X:402;Y:168),
(X:249;Y:168));
//定义五角星轮廓线各个顶点坐标
LinePoints : array[1..11] of TPoint =
((X:199;Y:0), (X:154;Y:145), (X:1;Y:145),
(X:124;Y:233), (X:79;Y:384), (X:199;Y:310),
(X:320;Y:384), (X:273;Y:234),(X:396;Y:145),
(X:244;Y:145), (X:199;Y:0));implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
//程序创建窗体时改变窗体外形为五角星
var
Rgn:HRGN;
begin
Rgn:= CreatePolygonRgn(RgnPoints, High(RgnPoints), ALTERNATE);
//创建一个多边形的区域
SetWindowRgn(Handle, Rgn, True);
//绘制多边形窗体
form1.color:=rgb(80,110,220);
//设置窗体初始背景颜色
SetWindowPos(Form1.Handle,HWND_TOPMOST,Form1.Left,Form1.Top,Form1.Width,Form1.Height,0);
//使窗体始终保持在最前
end;
procedure TForm1.FormPaint(Sender: TObject);
begin
Canvas.Pen.Width := 1;
//设定画笔大小
Canvas.Polyline(LinePoints);
//绘制多边形轮廓线
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
SetWindowPos(Form1.Handle,HWND_NOTOPMOST,Form1.Left,Form1.Top,Form1.Width,Form1.Height,0);
//恢复窗体正常位置和显示属性
form1.close;
//关闭窗体
end;
end.
-------------------------------------------------
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure FormPaint(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;
//设置五角星区域顶点
const
RgnPoints : array[1..10] of TPoint =
((X:203;Y:22), (X:157;Y:168), (X:3;Y:168),
(X:128;Y:257), (X:81;Y:409), (X:203;Y:334),
(X:325;Y:409), (X:278;Y:257), (X:402;Y:168),
(X:249;Y:168));
//定义五角星轮廓线各个顶点坐标
LinePoints : array[1..11] of TPoint =
((X:199;Y:0), (X:154;Y:145), (X:1;Y:145),
(X:124;Y:233), (X:79;Y:384), (X:199;Y:310),
(X:320;Y:384), (X:273;Y:234),(X:396;Y:145),
(X:244;Y:145), (X:199;Y:0));implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
//程序创建窗体时改变窗体外形为五角星
var
Rgn:HRGN;
begin
Rgn:= CreatePolygonRgn(RgnPoints, High(RgnPoints), ALTERNATE);
//创建一个多边形的区域
SetWindowRgn(Handle, Rgn, True);
//绘制多边形窗体
form1.color:=rgb(80,110,220);
//设置窗体初始背景颜色
SetWindowPos(Form1.Handle,HWND_TOPMOST,Form1.Left,Form1.Top,Form1.Width,Form1.Height,0);
//使窗体始终保持在最前
end;
procedure TForm1.FormPaint(Sender: TObject);
begin
Canvas.Pen.Width := 1;
//设定画笔大小
Canvas.Polyline(LinePoints);
//绘制多边形轮廓线
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
SetWindowPos(Form1.Handle,HWND_NOTOPMOST,Form1.Left,Form1.Top,Form1.Width,Form1.Height,0);
//恢复窗体正常位置和显示属性
form1.close;
//关闭窗体
end;
end.