The information in this article applies to:
- Microsoft Visual C++, 32-bit Editions, version 5.0
- Microsoft PowerPoint 97 for Windows
- The Microsoft Foundation Classes (MFC)
SUMMARY
This article shows how to automate Microsoft PowerPoint 97 using the
Microsoft Foundation Class (MFC) library, version 4.2 (installed with
Microsoft Visual C++ version 5.0). Specifically, this article illustrates
how to create and show a PowerPoint presentation with automation.
MORE INFORMATION
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 Msppt8.olb 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.
Steps to Create the Project
- 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:
ARTICLE-ID: Q178749
TITLE : HOWTO: 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 strOfficePath =
"C:\\Program Files\\Microsoft Office";
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());
CString strTemplate;
strTemplate = strOfficePath +
CString("\\Templates\\Presentation Designs\\Dads Tie.pot");
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.
CString strPic1 =
strOfficePath + CString("\\Clipart\\Popular\\Amhappy.wmf");
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();
- Modify the following line of code in CAutoProjectDlg::OnRun(), if
necessary, to specify the correct path for your installation of
Microsoft Office.
CString strOfficePath =
"C:\\Program Files\\Microsoft Office";
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