WinAPI: DrawFrameControl - 绘制控件

//声明:
DrawFrameControl(
  DC: HDC;            {设备环境句柄}
  const Rect: TRect;  {矩形}
  uType, uState: UINT {控件类型与控件状态}
): BOOL;


//控件类型 uType 参数可选值:
DFC_CAPTION   = 1; {标题按钮}
DFC_MENU      = 2; {菜单}
DFC_SCROLL    = 3; {滚动条按钮}
DFC_BUTTON    = 4; {标准按钮}
DFC_POPUPMENU = 5; {弹出菜单}


//控件状态  uState 参数可选值:

{针对 DFC_CAPTION}
DFCS_CAPTIONCLOSE   = 0;
DFCS_CAPTIONMIN     = 1;
DFCS_CAPTIONMAX     = 2;
DFCS_CAPTIONRESTORE = 3;
DFCS_CAPTIONHELP    = 4;

{针对 DFC_MENU}
DFCS_MENUARROW      = 0;
DFCS_MENUCHECK      = 1;
DFCS_MENUBULLET     = 2;
DFCS_MENUARROWRIGHT = 4;

{针对 DFC_SCROLL}
DFCS_SCROLLUP            = 0;
DFCS_SCROLLDOWN          = 1;
DFCS_SCROLLLEFT          = 2;
DFCS_SCROLLRIGHT         = 3;
DFCS_SCROLLCOMBOBOX      = 5;
DFCS_SCROLLSIZEGRIP      = 8;
DFCS_SCROLLSIZEGRIPRIGHT = $10;

{针对 DFC_BUTTON}
DFCS_BUTTONCHECK      = 0;
DFCS_BUTTONRADIOIMAGE = 1;
DFCS_BUTTONRADIOMASK  = 2;
DFCS_BUTTONRADIO      = 4;
DFCS_BUTTON3STATE     = 8;
DFCS_BUTTONPUSH       = $10;

{通用状态}
DFCS_INACTIVE    = $100;
DFCS_PUSHED      = $200;
DFCS_CHECKED     = $400;
DFCS_TRANSPARENT = $800;
DFCS_HOT         = $1000;
DFCS_ADJUSTRECT  = $2000;
DFCS_FLAT        = $4000;
DFCS_MONO        = $8000;


//举例:
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    RadioGroup1: TRadioGroup;
    RadioGroup2: TRadioGroup;
    RadioGroup3: TRadioGroup;
    RadioGroup4: TRadioGroup;
    RadioGroup5: TRadioGroup;
    RadioGroup6: TRadioGroup;
    Panel1: TPanel;
    procedure RadioGroup1Click(Sender: TObject);
    procedure RadioGroup2Click(Sender: TObject);
    procedure RadioGroup3Click(Sender: TObject);
    procedure RadioGroup4Click(Sender: TObject);
    procedure RadioGroup5Click(Sender: TObject);
    procedure RadioGroup6Click(Sender: TObject);
    procedure Draw;
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

var
  DFC  : Integer = 0;
  DFCS1: Integer = 0;
  DFCS2: Integer = 0;

procedure TForm1.Draw;
begin
  Panel1.Refresh;
  DrawFrameControl(GetDC(Panel1.Handle), Rect(10,10,100,50), DFC, DFCS1 or DFCS2);
end;

procedure TForm1.RadioGroup1Click(Sender: TObject);
begin
  Panel1.Refresh;
  case RadioGroup1.ItemIndex of
    0: begin
      DFC := DFC_CAPTION;
      RadioGroup3.Enabled := True;
      RadioGroup4.Enabled := False;
      RadioGroup5.Enabled := False;
      RadioGroup6.Enabled := False;
    end;
    1: begin
      DFC := DFC_MENU;
      RadioGroup3.Enabled := False;
      RadioGroup4.Enabled := True;
      RadioGroup5.Enabled := False;
      RadioGroup6.Enabled := False;
    end;
    2: begin
      DFC := DFC_SCROLL;
      RadioGroup3.Enabled := False;
      RadioGroup4.Enabled := False;
      RadioGroup5.Enabled := True;
      RadioGroup6.Enabled := False;
    end;
    3: begin
      DFC := DFC_BUTTON;
      RadioGroup3.Enabled := False;
      RadioGroup4.Enabled := False;
      RadioGroup5.Enabled := False;
      RadioGroup6.Enabled := True;
    end;
    4: begin
      DFC := DFC_POPUPMENU;
      RadioGroup3.Enabled := False;
      RadioGroup4.Enabled := True;
      RadioGroup5.Enabled := False;
      RadioGroup6.Enabled := False;
    end;
  end;
end;

procedure TForm1.RadioGroup2Click(Sender: TObject);
begin
  case RadioGroup2.ItemIndex of
    0: DFCS1 := DFCS_INACTIVE;
    1: DFCS1 := DFCS_PUSHED;
    2: DFCS1 := DFCS_CHECKED;
    3: DFCS1 := DFCS_TRANSPARENT;
    4: DFCS1 := DFCS_HOT;
    5: DFCS1 := DFCS_ADJUSTRECT;
    6: DFCS1 := DFCS_FLAT;
    7: DFCS1 := DFCS_MONO;
  end;
  Draw;
end;

procedure TForm1.RadioGroup3Click(Sender: TObject);
begin
  case RadioGroup3.ItemIndex of
    0: DFCS2 := DFCS_CAPTIONCLOSE;
    1: DFCS2 := DFCS_CAPTIONMIN;
    2: DFCS2 := DFCS_CAPTIONMAX;
    3: DFCS2 := DFCS_CAPTIONRESTORE;
    4: DFCS2 := DFCS_CAPTIONHELP;
  end;
  Draw;
end;

procedure TForm1.RadioGroup4Click(Sender: TObject);
begin
  case RadioGroup4.ItemIndex of
    0: DFCS2 := DFCS_MENUARROW;
    1: DFCS2 := DFCS_MENUCHECK;
    2: DFCS2 := DFCS_MENUBULLET;
    3: DFCS2 := DFCS_MENUARROWRIGHT;
  end;
  Draw;
end;

procedure TForm1.RadioGroup5Click(Sender: TObject);
begin
  case RadioGroup5.ItemIndex of
    0: DFCS2 := DFCS_SCROLLUP;
    1: DFCS2 := DFCS_SCROLLDOWN;
    2: DFCS2 := DFCS_SCROLLLEFT;
    3: DFCS2 := DFCS_SCROLLRIGHT;
    4: DFCS2 := DFCS_SCROLLCOMBOBOX;
    5: DFCS2 := DFCS_SCROLLSIZEGRIP;
    6: DFCS2 := DFCS_SCROLLSIZEGRIPRIGHT;
  end;
  Draw;
end;

procedure TForm1.RadioGroup6Click(Sender: TObject);
begin
  case RadioGroup6.ItemIndex of
    0: DFCS2 := DFCS_BUTTONCHECK;
    1: DFCS2 := DFCS_BUTTONRADIOIMAGE;
    2: DFCS2 := DFCS_BUTTONRADIOMASK;
    3: DFCS2 := DFCS_BUTTONRADIO;
    4: DFCS2 := DFCS_BUTTON3STATE;
    5: DFCS2 := DFCS_BUTTONPUSH;
  end;
  Draw;
end;

end.


//效果图:

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附上窗体结构代码: object Form1: TForm1 Left = 0 Top = 0 Caption = 'Form1' ClientHeight = 386 ClientWidth = 499 Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -11 Font.Name = 'Tahoma' Font.Style = [] OldCreateOrder = False PixelsPerInch = 96 TextHeight = 13 object RadioGroup1: TRadioGroup Left = 0 Top = 8 Width = 137 Height = 129 Caption = 'RadioGroup1' Items.Strings = ( 'DFC_CAPTION ' 'DFC_MENU ' 'DFC_SCROLL ' 'DFC_BUTTON ' 'DFC_POPUPMENU ') TabOrder = 0 OnClick = RadioGroup1Click end object RadioGroup2: TRadioGroup Left = 0 Top = 143 Width = 137 Height = 170 Caption = 'RadioGroup2' Items.Strings = ( 'DFCS_INACTIVE' 'DFCS_PUSHED' 'DFCS_CHECKED' 'DFCS_TRANSPARENT' 'DFCS_HOT' 'DFCS_ADJUSTRECT' 'DFCS_FLAT' 'DFCS_MONO') TabOrder = 1 OnClick = RadioGroup2Click end object RadioGroup3: TRadioGroup Left = 143 Top = 8 Width = 178 Height = 129 Caption = 'RadioGroup3' Items.Strings = ( 'DFCS_CAPTIONCLOSE ' 'DFCS_CAPTIONMIN' 'DFCS_CAPTIONMAX' 'DFCS_CAPTIONRESTORE' 'DFCS_CAPTIONHELP') TabOrder = 2 OnClick = RadioGroup3Click end object RadioGroup4: TRadioGroup Left = 327 Top = 8 Width = 170 Height = 129 Caption = 'RadioGroup4' Items.Strings = ( 'DFCS_MENUARROW' 'DFCS_MENUCHECK' 'DFCS_MENUBULLET' 'DFCS_MENUARROWRIGHT') TabOrder = 3 OnClick = RadioGroup4Click end object RadioGroup5: TRadioGroup Left = 143 Top = 143 Width = 178 Height = 170 Caption = 'RadioGroup5' Items.Strings = ( 'DFCS_SCROLLUP' 'DFCS_SCROLLDOWN' 'DFCS_SCROLLLEFT' 'DFCS_SCROLLRIGHT' 'DFCS_SCROLLCOMBOBOX' 'DFCS_SCROLLSIZEGRIP' 'DFCS_SCROLLSIZEGRIPRIGHT') TabOrder = 4 OnClick = RadioGroup5Click end object RadioGroup6: TRadioGroup Left = 327 Top = 143 Width = 170 Height = 170 Caption = 'RadioGroup6' Items.Strings = ( 'DFCS_BUTTONCHECK' 'DFCS_BUTTONRADIOIMAGE' 'DFCS_BUTTONRADIOMASK' 'DFCS_BUTTONRADIO' 'DFCS_BUTTON3STATE' 'DFCS_BUTTONPUSH') TabOrder = 5 OnClick = RadioGroup6Click end object Panel1: TPanel Left = 0 Top = 319 Width = 499 Height = 67 Align = alBottom Caption = 'Panel1' TabOrder = 6 end end

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