在这里制作delphi应用程序(delphi 2007 for win32)的最佳方法是全屏显示,删除应用程序边框并覆盖windows任务栏?
我正在寻找类似于IE点击F11时的功能。
我希望这对于用户而言是一个运行时选项,而不是由我自己决定设计时间。
正如接受的答案中提到的那样
BorderStyle := bsNone;
是实现目标的一部分。奇怪的是,我在使用该行时遇到E2010 Incompatible types: 'TFormBorderStyle' and 'TBackGroundSymbol'
错误(另一种类型已定义bsNone
)。
为了解决这个问题,我不得不使用:
BorderStyle := Forms.bsNone;
答案 0 :(得分:23)
嗯,这一直对我有用。看起来有点简单...
procedure TForm52.Button1Click(Sender: TObject);
begin
BorderStyle := bsNone;
WindowState := wsMaximized;
end;
答案 1 :(得分:8)
谷歌搜索发现了以下其他方法:
(虽然我想我先尝试罗迪的方法)
procedure TSomeForm.FormShow(Sender: TObject) ;
var
r : TRect;
begin
Borderstyle := bsNone;
SystemParametersInfo
(SPI_GETWORKAREA, 0, @r,0) ;
SetBounds
(r.Left, r.Top, r.Right-r.Left, r.Bottom-r.Top) ;
end;
FormStyle := fsStayOnTop;
BorderStyle := bsNone;
Left := 0;
Top := 0;
Width := Screen.Width;
Height := Screen.Height;
private // in form declaration
Procedure WMGetMinMaxInfo(Var msg: TWMGetMinMaxInfo);
message WM_GETMINMAXINFO;
Procedure TForm1.WMGetMinMaxInfo(Var msg: TWMGetMinMaxInfo);
Begin
inherited;
With msg.MinMaxInfo^.ptMaxTrackSize Do Begin
X := GetDeviceCaps( Canvas.handle, HORZRES ) + (Width - ClientWidth);
Y := GetDeviceCaps( Canvas.handle, VERTRES ) + (Height - ClientHeight
);
End;
End;
procedure TForm1.Button2Click(Sender: TObject);
Const
Rect: TRect = (Left:0; Top:0; Right:0; Bottom:0);
FullScreen: Boolean = False;
begin
FullScreen := not FullScreen;
If FullScreen Then Begin
Rect := BoundsRect;
SetBounds(
Left - ClientOrigin.X,
Top - ClientOrigin.Y,
GetDeviceCaps( Canvas.handle, HORZRES ) + (Width - ClientWidth),
GetDeviceCaps( Canvas.handle, VERTRES ) + (Height - ClientHeight ));
// Label2.caption := IntToStr(GetDeviceCaps( Canvas.handle, VERTRES ));
End
Else
BoundsRect := Rect;
end;
答案 2 :(得分:2)
将 onShow 事件添加到表格中:
WindowState:=wsMaximized;
OnCanResize :
if (newwidth<width) and (newheight<height) then
Resize:=false;
答案 3 :(得分:1)
最大化表单和hide the title bar。最大化行是从内存完成的,但我很确定WindowState是你想要的属性。
还有this文章,但这对我来说似乎太复杂了。
procedure TForm1.FormCreate(Sender: TObject) ;
begin
//maximize the window
WindowState := wsMaximized;
//hide the title bar
SetWindowLong(Handle,GWL_STYLE,GetWindowLong(Handle,GWL_STYLE) and not WS_CAPTION);
ClientHeight := Height;
end;
编辑:这是一个完整的例子,带有“全屏”和“恢复”选项。为了获得最大的清晰度,我将不同的部分分解成了很少的程序,所以这可以大大压缩成几行。
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
btnGoFullScreen: TButton;
btnNotFullScreen: TButton;
btnShowTitleBar: TButton;
btnHideTitleBar: TButton;
btnQuit: TButton;
procedure btnGoFullScreenClick(Sender: TObject);
procedure btnShowTitleBarClick(Sender: TObject);
procedure btnHideTitleBarClick(Sender: TObject);
procedure btnNotFullScreenClick(Sender: TObject);
procedure btnQuitClick(Sender: TObject);
private
SavedLeft : integer;
SavedTop : integer;
SavedWidth : integer;
SavedHeight : integer;
SavedWindowState : TWindowState;
procedure FullScreen;
procedure NotFullScreen;
procedure SavePosition;
procedure HideTitleBar;
procedure ShowTitleBar;
procedure RestorePosition;
procedure MaximizeWindow;
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.btnQuitClick(Sender: TObject);
begin
Application.Terminate;
end;
procedure TForm1.btnGoFullScreenClick(Sender: TObject);
begin
FullScreen;
end;
procedure TForm1.btnNotFullScreenClick(Sender: TObject);
begin
NotFullScreen;
end;
procedure TForm1.btnShowTitleBarClick(Sender: TObject);
begin
ShowTitleBar;
end;
procedure TForm1.btnHideTitleBarClick(Sender: TObject);
begin
HideTitleBar;
end;
procedure TForm1.FullScreen;
begin
SavePosition;
HideTitleBar;
MaximizeWindow;
end;
procedure TForm1.HideTitleBar;
begin
SetWindowLong(Handle,GWL_STYLE,GetWindowLong(Handle,GWL_STYLE) and not WS_CAPTION);
ClientHeight := Height;
end;
procedure TForm1.MaximizeWindow;
begin
WindowState := wsMaximized;
end;
procedure TForm1.NotFullScreen;
begin
RestorePosition;
ShowTitleBar;
end;
procedure TForm1.RestorePosition;
begin
//this proc uses what we saved in "SavePosition"
WindowState := SavedWindowState;
Top := SavedTop;
Left := SavedLeft;
Width := SavedWidth;
Height := SavedHeight;
end;
procedure TForm1.SavePosition;
begin
SavedLeft := Left;
SavedHeight := Height;
SavedTop := Top;
SavedWidth := Width;
SavedWindowState := WindowState;
end;
procedure TForm1.ShowTitleBar;
begin
SetWindowLong(Handle,gwl_Style,GetWindowLong(Handle,gwl_Style) or ws_Caption or ws_border);
Height := Height + GetSystemMetrics(SM_CYCAPTION);
Refresh;
end;
end.
答案 4 :(得分:1)
如何在Mainform中约束子表单,就像它是一个MDI应用程序一样,但没有头痛! (注意:此页面上的回复帮助我实现了这一点,所以这就是我在这里发布我的解决方案的原因)
private
{ Private declarations }
StickyAt: Word;
procedure WMWINDOWPOSCHANGING(Var Msg: TWMWINDOWPOSCHANGING); Message M_WINDOWPOSCHANGING;
Procedure WMGetMinMaxInfo(Var msg: TWMGetMinMaxInfo); message WM_GETMINMAXINFO;
...后
procedure TForm2.WMWINDOWPOSCHANGING(var Msg: TWMWINDOWPOSCHANGING);
var
A, B: Integer;
iFrameSize: Integer;
iCaptionHeight: Integer;
iMenuHeight: Integer;
begin
iFrameSize := GetSystemMetrics(SM_CYFIXEDFRAME);
iCaptionHeight := GetSystemMetrics(SM_CYCAPTION);
iMenuHeight := GetSystemMetrics(SM_CYMENU);
// inside the Mainform client area
A := Application.MainForm.Left + iFrameSize;
B := Application.MainForm.Top + iFrameSize + iCaptionHeight + iMenuHeight;
with Msg.WindowPos^ do
begin
if x <= A + StickyAt then
x := A;
if x + cx >= A + Application.MainForm.ClientWidth - StickyAt then
x := (A + Application.MainForm.ClientWidth) - cx + 1;
if y <= B + StickyAt then
y := B;
if y + cy >= B + Application.MainForm.ClientHeight - StickyAt then
y := (B + Application.MainForm.ClientHeight) - cy + 1;
end;
end;
还有更多......
Procedure TForm2.WMGetMinMaxInfo(Var msg: TWMGetMinMaxInfo);
var
iFrameSize: Integer;
iCaptionHeight: Integer;
iMenuHeight: Integer;
Begin
inherited;
iFrameSize := GetSystemMetrics(SM_CYFIXEDFRAME);
iCaptionHeight := GetSystemMetrics(SM_CYCAPTION);
iMenuHeight := GetSystemMetrics(SM_CYMENU);
With msg.MinMaxInfo^.ptMaxPosition Do
begin
// position of top when maximised
X := Application.MainForm.Left + iFrameSize + 1;
Y := Application.MainForm.Top + iFrameSize + iCaptionHeight + iMenuHeight + 1;
end;
With msg.MinMaxInfo^.ptMaxSize Do
Begin
// width and height when maximized
X := Application.MainForm.ClientWidth;
Y := Application.MainForm.ClientHeight;
End;
With msg.MinMaxInfo^.ptMaxTrackSize Do
Begin
// maximum size when maximised
X := Application.MainForm.ClientWidth;
Y := Application.MainForm.ClientHeight;
End;
// to do: minimum size (maybe)
End;
答案 5 :(得分:0)
您需要确保表格位置为poDefaultPosOnly。
Form1.Position := poDefaultPosOnly;
Form1.FormStyle := fsStayOnTop;
Form1.BorderStyle := bsNone;
Form1.Left := 0;
Form1.Top := 0;
Form1.Width := Screen.Width;
Form1.Height := Screen.Height;
经过测试并可在Win7 x64上运行。
答案 6 :(得分:0)
嗯。看看我大约8年前编码游戏时的回答。为了使调试更容易,我使用普通Delphi表单的设备上下文作为全屏显示的源。
关键是,DirectX能够全屏运行任何设备上下文 - 包括表单分配的设备上下文。
因此,要为应用程序提供“真正的”全屏功能,请跟踪Delphi的DirectX库,它可能包含您开箱即用的内容。
答案 7 :(得分:0)
就我而言,唯一可行的解决方案是:
procedure TFormHelper.FullScreenMode;
begin
BorderStyle := bsNone;
ShowWindowAsync(Handle, SW_MAXIMIZE);
end;
答案 8 :(得分:-1)
尝试:
Align = alClient
FormStyle = fsStayOnTop
这始终与主监视器对齐;