全透明窗体（效果比较好）uses里加上ExtCtrlsprocedure tform1.setformtransparent;var I: Integer; FullRgn, ClientRgn, ControlRgn: THandle; Margin, MarginX, MarginY, X, Y: Integer; W,H,S :Integer; bX,bY :Integer; c :TColor; begin Margin := (Width - ClientWidth) div 2; FullRgn := CreateRectRgn(0, 0, Width, Height); MarginX := Margin; MarginY := Height - ClientHeight - Margin; ClientRgn := CreateRectRgn(MarginX, MarginY, MarginX + ClientWidth, MarginY + ClientHeight); CombineRgn(FullRgn, FullRgn, ClientRgn, RGN_DIFF); DeleteObject(ClientRgn); for I:=0 to ControlCount-1 do begin X := MarginX + Controls[I].Left; Y := MarginY + Controls[I].Top; W:=Controls[I].Width; H:=Controls[I].Height; {} if controls[i] is timage then begin with controls[i] as tImage do begin c:=Picture.Bitmap.Canvas.Pixels[0,0]; for bX:=0 to Picture.Bitmap.Width-1 do begin for bY:=0 to Picture.Bitmap.Height-1 do begin if Picture.Bitmap.Canvas.Pixels[bX,bY]<>c then begin ControlRgn := CreateRectRgn(X+bX, Y+bY, X + bX+1, Y + bY+1); CombineRgn(FullRgn, FullRgn, ControlRgn, RGN_OR); DeleteObject(ControlRgn); end; end; end; end; end else{} if controls[i] is tShape then begin if W < H then S := W else S := H; if (Controls[i] as tshape).Shape in [stSquare, stRoundSquare, stCircle] then begin Inc(X, (W - S) div 2); Inc(Y, (H - S) div 2); W := S; H := S; end; Inc(W); Inc(H); Inc(S); case (controls[i] as tshape).Shape of stRectangle, stSquare: ControlRgn := CreateRectRgn(X, Y, X + W, Y + H); stRoundRect, stRoundSquare: ControlRgn := CreateRoundRectRgn(X, Y, X + W, Y + H, S div 4, S div 4); stCircle, stEllipse: ControlRgn:=CreateEllipticRgn(X, Y, X + W, Y + H); else ControlRgn := CreateRectRgn(X, Y, X + W, Y + H); end; CombineRgn(FullRgn, FullRgn, ControlRgn, RGN_OR); DeleteObject(ControlRgn); end else{} begin ControlRgn := CreateRectRgn(X, Y, X + W, Y + H); CombineRgn(FullRgn, FullRgn, ControlRgn, RGN_OR); DeleteObject(ControlRgn); end; end; SetWindowRgn(Handle, FullRgn, True); DeleteObject(FullRgn);end;
procedure TForm1.FormResize(Sender: TObject);begin setformtransparent;end;
//rock//转载请保留此信息
