This article shows how to automate Microsoft PowerPoint
using the Microsoft Foundation Class (MFC) library version 4.2 (installed with
Microsoft Visual C++ versions 5.0 and 6.0). Specifically, this article
illustrates how to create and show a PowerPoint presentation with automation.
You can copy the code in this article to the message
handler function of an event defined in an MFC .cpp file. However, the purpose
of the code is to illustrate the process of using the IDispatch interfaces and
member functions defined in the PowerPoint 97 type library. The primary benefit
comes from reading and understanding the code in the example so that you can
modify the example or write your own code to automate Microsoft PowerPoint 97
using MFC.
The sample code in this article uses class wrappers generated
from the PowerPoint 97 object library (Msppt8.olb). With slight modification,
this code can be applied to an Automation client that uses class wrappers for
PowerPoint 2000 (Msppt9.olb) or PowerPoint 2002 (Msppt.olb). For additional
information about using the sample code described in this article with the
PowerPoint 2000 or 2002 type library, please click the article number below to
view it in the Microsoft Knowledge Base:
224925
(http://support.microsoft.com/kb/224925/EN-US/
)
INFO: Type Libraries for Office May Change With New Release
Follow steps 1 through 12 in the following Microsoft
Knowledge Base article to create a sample project that uses the IDispatch
interfaces and member functions defined in the Msppt8.olb type library:
178749
(http://support.microsoft.com/kb/178749/EN-US/
)
How To Create an Automation Project Using MFC and a Type Library
Press CTRL+W to display the ClassWizard once more and
select the Automation tab. Click the Add Class button and select From a Type
Library. Locate Graph8.olb and click Open. Select only the "Chart" class and
click OK. Click OK to close the ClassWizard.
NOTE: The presentation that you will create with this example contains
an embedded Microsoft Graph chart; this is the reason for adding the Chart
class from the Microsoft Graph type library (Graph8.olb).
At the top of the AutoProjectDlg.cpp file, add the
following lines:
#include "msppt8.h"
#include "graph8.h"
Add the following code to CAutoProjectDlg::OnRun() in the
AutoProjectDlg.cpp file:
// Commonly used OLE-variants.
COleVariant
covTrue((short)TRUE),
covFalse((short)FALSE),
covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);
_Application app;
Presentations presentations;
_Presentation presentation;
Slides slides;
_Slide slide;
ShapeRange shaperange;
Shapes shapes;
Shape shape;
TextFrame textframe;
TextRange textrange;
Font font;
FillFormat fillformat;
ColorFormat colorformat;
ShadowFormat shadow;
CString strPic1 ="C:\\Program Files\\Microsoft Office\\Clipart\\Popular\\Amhappy.wmf";
CString strTemplate =
"C:\\Program Files\\Microsoft Office\\Templates\\Presentation Designs\\Zesty.pot";
if(!app.CreateDispatch("Powerpoint.Application"))
{
AfxMessageBox("Could not create Powerpoint object.");
return;
}
//Make the application visible and minimized.
app.SetVisible((long)TRUE);
app.SetWindowState((long) 2); //ppWindowMinimized=2
//Get the Presentations collection and create a new presentation
//from a template(.POT)
presentations.AttachDispatch(app.GetPresentations());
presentation = presentations.Open(
strTemplate, //File name
(long)0, //Read-only
(long)-1, //Untitled
(long)-1 //WithWindow
);
slides = presentation.GetSlides();
//Add the first slide to the presentation.
slide = (slides.Add((long)1, (long)11)); //pptLayoutTitleOnly=11
//Modify the text and font name of the TextFrame on the slide.
shapes = slide.GetShapes();
shape = shapes.Item(COleVariant((short)1));
textframe = shape.GetTextFrame();
textrange = textframe.GetTextRange();
textrange.SetText("My Sample Presentation");//Set the text
font = textrange.GetFont();
font.SetName("Comic Sans MS"); //Set the font name.
font.SetSize((float)48); //Set the font size.
//Insert a picture into the slide and position it.
shapes.AddPicture(
strPic1, //Filename
(long)0, //LinkToFile
(long)-1, //SaveWithDocument
(float)150, //Left
(float)150, //Top
(float)500, //Width
(float)350 //Height
);
//Add the second slide to the presentation.
slide = (slides.Add((long)2, (long)11)); //pptLayoutTitleOnly=11
//Modify the text and font name of the
//TextFrame on the slide.
shapes = slide.GetShapes();
shape = shapes.Item(COleVariant((short)1));
textframe = shape.GetTextFrame();
textrange = textframe.GetTextRange();
textrange.SetText("Look! It's a Graph!");//Set the text
font = textrange.GetFont();
font.SetName("Comic Sans MS"); //Set the font name.
font.SetSize((float)48); //Set the font size.
//Add a Graph8 object to the slide.
shape = shapes.AddOLEObject(
(float)150, //Left
(float)150, //Top
(float)480, //Width
(float)320, //Height
"MSGraph.Chart", //Classname
"", //FileName
(long)0, //DisplayAsIcon
"", //IconFileName
(long)0, //IconIndex
"", //IconLabel
(long)0 //Link
);
//Modify the charttype of the graph.
Chart chart;
OLEFormat olefmt = shape.GetOLEFormat();
chart = olefmt.GetObject();
chart.SetChartType((long)70);
//Add the third slide to the presentation.
slide = (slides.Add((long)3, (long)12)); //ppLayoutBlank = 12
//Change the background color of the slide.
slide.SetFollowMasterBackground((long)0);
shaperange = slide.GetBackground();
fillformat = shaperange.GetFill();
colorformat = fillformat.GetForeColor();
colorformat.SetSchemeColor((long)3); //ppShadow = 3
//Add Text Effects to the last slide
shapes = slide.GetShapes();
shape = shapes.AddTextEffect(
(long)27, //PresetTextEffect (msoTextEffect28 = 27)
"The End", //Text
"Impact", //FontName
(float)96, //FontSize
(long)0, //FontBold
(long)0, //FontItalic
(float)230, //Left
(float)200 //Top
);
//Apply a gradient fill to the texteffect.
fillformat = shape.GetFill();
colorformat = fillformat.GetForeColor();
colorformat.SetSchemeColor((long)2); //ppForeground = 2
colorformat = fillformat.GetBackColor();
colorformat.SetSchemeColor((long)4); //ppTitle = 4
fillformat.TwoColorGradient ((long)1, (long)1);
//msoGradientHorizontal = 1
//Apply a shadow to the texteffect.
shadow = shape.GetShadow();
colorformat = shadow.GetForeColor();
colorformat.SetSchemeColor((long)2); //ppForeground = 2
shadow.SetVisible((long)-1);
shadow.IncrementOffsetX((float)3);
shadow.IncrementOffsetY((float)3);
SlideShowTransition show;
SlideShowSettings slideshow;
//Set the Transition effects for Slide 1.
slide = slides.Item(COleVariant((short)1));
show = slide.GetSlideShowTransition();
show.SetEntryEffect((long)769); //ppEffectBlindsHorizontal=769
show.SetAdvanceOnTime((long)-1);
show.SetAdvanceTime((float)3);
//Set the Transition effects for Slide 2.
slide = slides.Item(COleVariant((short)2));
show = slide.GetSlideShowTransition();
show.SetEntryEffect((long)770); //ppEffectBlindsVertical=770
show.SetAdvanceOnTime((long)-1);
show.SetAdvanceTime((float)3);
//Set the Transition effects for Slide 3.
slide = slides.Item(COleVariant((short)3));
show = slide.GetSlideShowTransition();
show.SetEntryEffect((long)3073); //ppEffectBoxOut=3073
show.SetAdvanceOnTime((long)-1);
show.SetAdvanceTime((float)3);
//Run the show.
slideshow = presentation.GetSlideShowSettings();
slideshow.Run();
//Quit the application after waiting 9 seconds (the length of the
//slide show).
::Sleep(9000);
presentation.SetSaved((long)-1);
app.Quit();
If needed, modify the assignments for strPic1 and
strTemplate to valid paths for an image file and a PowerPoint presentation
template: