尝试加载PowerPoint文件,但未能
问题描述:
安装MS PowerPoint播放器后,我运行下面尝试加载PowerPoint文件,但未能
unit Unit1;
interface
uses Comobj,
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls,Office_TLB, office97, PowerPointXP;//, ExtCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Panel1: TPanel;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
const
ppShowTypeSpeaker = 1;
ppShowTypeInWindow = 1000;
SHOW_FILE = 'C:\Users\myname\Downloads\practicepowerpoint.ppt';
var
oPPTApp: OleVariant;
oPPTPres: OleVariant;
screenClasshWnd: HWND;
pWidth, pHeight: Integer;
function PixelsToPoints(Val: Integer; Vert: Boolean): Integer;
begin
if Vert then
Result := Trunc(Val * 0.75)
else
Result := Trunc(Val * 0.75);
end;
begin
try
oPPTApp := CreateOleObject('PowerPoint.Application');
except
showmessage('no ppt');;
exit;
end;
oPPTPres := oPPTApp.Presentations.Open(SHOW_FILE, True, True, False);
pWidth := PixelsToPoints(Panel1.Width, False);
pHeight := PixelsToPoints(Panel1.Height, True);
oPPTPres.SlideShowSettings.ShowType := ppShowTypeSpeaker;
oPPTPres.SlideShowSettings.Run.Width := pWidth;
oPPTPres.SlideShowSettings.Run.Height := pHeight;
screenClasshWnd := FindWindow('screenClass', nil);
Windows.SetParent(screenClasshWnd, Panel1.Handle);
end;
end.
的代码行
oPPTApp := CreateOleObject('PowerPoint.Application');
原因的错误。
只是想知道我必须安装PowerPoint播放,而不是PowerPoint播放器之前运行代码
您的评论欢迎
答
是,“Powerpoint.Application”开始简报。我不会推荐使用Powerpoint查看器,因为它是一个非常老的程序(从2010年和之前)。如果您可以自动执行此程序,我不确定。 查看pptx的新方法是Powerpoint online
像这样的父母方法不起作用。找到一种不同的方式。 –