unit Unit1;
//download by http://www.codefans.net
interfaceuses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;type
TForm1 = class(TForm)
private
procedure WMNCPaint(var Msg : TWMNCPaint); message WM_NCPAINT;
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.DFM}{ TForm1 }procedure TForm1.WMNCPaint(var Msg: TWMNCPaint);
var
dc : hDc;
Pen : hPen;
OldPen : hPen;
OldBrush : hBrush;
begin
inherited;
dc := GetWindowDC(Handle);
msg.Result := 1; Pen := CreatePen(PS_SOLID, 3, RGB(255, 0, 0));
OldPen := SelectObject(dc, Pen);
OldBrush := SelectObject(dc, GetStockObject(NULL_BRUSH));
Rectangle(dc, 0,0, Form1.Width, Form1.Height);
SelectObject(dc, OldBrush);
SelectObject(dc, OldPen); DeleteObject(Pen);
ReleaseDC(Handle, Canvas.Handle);
end;end.
上述代码delphi2010编译后在win7没有效果,求助如何实现
//download by http://www.codefans.net
interfaceuses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;type
TForm1 = class(TForm)
private
procedure WMNCPaint(var Msg : TWMNCPaint); message WM_NCPAINT;
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.DFM}{ TForm1 }procedure TForm1.WMNCPaint(var Msg: TWMNCPaint);
var
dc : hDc;
Pen : hPen;
OldPen : hPen;
OldBrush : hBrush;
begin
inherited;
dc := GetWindowDC(Handle);
msg.Result := 1; Pen := CreatePen(PS_SOLID, 3, RGB(255, 0, 0));
OldPen := SelectObject(dc, Pen);
OldBrush := SelectObject(dc, GetStockObject(NULL_BRUSH));
Rectangle(dc, 0,0, Form1.Width, Form1.Height);
SelectObject(dc, OldBrush);
SelectObject(dc, OldPen); DeleteObject(Pen);
ReleaseDC(Handle, Canvas.Handle);
end;end.
上述代码delphi2010编译后在win7没有效果,求助如何实现
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procedure TForm1.WMNCPaint(var Message: TWMNCPaint);
begin
DrawTitle;
Message.Result := 1;
end;procedure TForm1.WMNCCALCSIZE(var msg: TMessage);
begin
with TWMNCCALCSIZE(msg).CalcSize_Params^ do
begin
Inc(rgrc[0].Left, CFRAMEW);
Inc(rgrc[0].Top, CTITLEHEIGTH);
Dec(rgrc[0].Right, CFRAMEW);
Dec(rgrc[0].Bottom, CFRAMEW);
end;
msg.Result := 0;
inherited;
end;procedure TForm1.DrawCaption;
var
CaptionBmp: TBitmap;
DC: HDC;
C: TCanvas;
R: TRect;
Style: DWORD;
begin
C := TCanvas.Create;
DC := GetWindowDC(Handle);
try
C.Handle := DC;
C.Brush.Color := FColor;
C.FillRect(Rect(0, 0, Width, CTITLEHEIGTH)); //标题
C.Brush.Color := FColor;
C.FillRect(Rect(0, 0, CFRAMEW, Height)); //左边
C.Brush.Color := FColor;
C.FillRect(Rect(Width - CFRAMEW, 0, Width, Height)); //右边
C.Brush.Color := FColor;
C.FillRect(Rect(0, Height - CFRAMEW, Width, Height)); //底边
finally
C.Free;
ReleaseDC(Handle, DC);
end;
end;
你基本处理这几个消息就可以画边框了!
CFRAMEW = 2;
CTITLEHEIGTH = 50;
CHITTESTWIDTH = 1; //HitTest预留厚度这些是常量
var
dc: hDc;
Pen: hPen;
OldPen: hPen;
OldBrush: hBrush;
begin
dc := GetWindowDC(Handle);
Self.Refresh;
Pen := CreatePen(PS_SOLID, 1, RGB(0, 0, 200));
OldPen := SelectObject(dc, Pen);
OldBrush := SelectObject(dc, GetStockObject(NULL_BRUSH));
RoundRect(dc,0,0,Width - 1,Height - 1,10,10);
SelectObject(dc, OldBrush);
SelectObject(dc, OldPen);
DeleteObject(Pen);
Pen := CreatePen(PS_SOLID, 1, RGB(137, 245, 255));
OldPen := SelectObject(dc, Pen);
OldBrush := SelectObject(dc, GetStockObject(NULL_BRUSH));
RoundRect(dc,1,1,Width - 2,Height - 2,10,10);
SelectObject(dc, OldBrush);
SelectObject(dc, OldPen);
DeleteObject(Pen);
ReleaseDC(Handle, Canvas.Handle);
end;