Správa VBA projektů v prezentacích pomocí C++

Úvod

The Aspose.Slides.Vba namespace contains classes and interfaces for working with macros and VBA code.

Poznámka

When you convert a presentation containing macros to a different file format (PDF, HTML, etc.), Aspose.Slides ignores all macros (macros are not carried into the resulting file).

When you add macros to a presentation or resave a presentation containing macros, Aspose.Slides simply writes the bytes for the macros.

Aspose.Slides never runs the macros in a presentation.

Přidat VBA makra

Aspose.Slides provides the VbaProject class to allow you to create VBA projects (and project references) and edit existing modules. You can use the IVbaProject interface to manage VBA embedded in a presentation.

Create an instance of the Presentation class.
Use the VbaProject constructor to add a new VBA project.
Add a module to the VbaProject.
Set the module source code.
Add references to .
Add references to Microsoft Office.
Associate the references with the VBA project.
Save the presentation.

This C++ code shows you how to add a VBA macro from scratch to a presentation:

// Cesta k adresáři dokumentů.
const String outPath = u"../out/AddVBAMacros_out.pptm";

// Vytvoří instanci třídy prezentace
SharedPtr<Presentation> presentation = MakeObject<Presentation>();
// Vytvoří nový VBA projekt
presentation->set_VbaProject(MakeObject<VbaProject>());

// Přidá prázdný modul do VBA projektu
SharedPtr<IVbaModule> module = presentation->get_VbaProject()->get_Modules()->AddEmptyModule(u"Module");

// Nastaví zdrojový kód modulu
module->set_SourceCode(u"Sub Test(oShape As Shape) MsgBox \"Test\" End Sub");

// Vytvoří odkaz na <stdole>
SharedPtr<VbaReferenceOleTypeLib> stdoleReference =
	MakeObject<VbaReferenceOleTypeLib>(u"stdole", u"*\\G{00020430-0000-0000-C000-000000000046}#2.0#0#C:\\Windows\\system32\\stdole2.tlb#OLE Automation");

// Vytvoří odkaz na Office
SharedPtr<VbaReferenceOleTypeLib> officeReference =
	MakeObject<VbaReferenceOleTypeLib>(u"Office", u"*\\G{2DF8D04C-5BFA-101B-BDE5-00AA0044DE52}#2.0#0#C:\\Program Files\\Common Files\\Microsoft Shared\\OFFICE14\\MSO.DLL#Microsoft Office 14.0 Object Library");

// Přidá odkazy do VBA projektu
presentation->get_VbaProject()->get_References()->Add(stdoleReference);
presentation->get_VbaProject()->get_References()->Add(officeReference);

// Uloží prezentaci
presentation->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptm);

You may want to check out Aspose Macro Remover, which a free web app used to remove macros from PowerPoint, Excel, and Word documents.

Odstranit VBA makra

Using the VbaProject property under the Presentation class, you can remove a VBA macro.

Create an instance of the Presentation class and load the presentation containing the macro.
Access the Macro module and remove it.
Save the modified presentation.

This C++ code shows you how to remove a VBA macro:

// Cesta k adresáři dokumentů.
const String outPath = u"../out/RemoveVBAMacros_out.pptm";
const String templatePath = u"../templates/vba.pptm";

// Načte prezentaci obsahující makro
SharedPtr<Presentation> presentation = MakeObject<Presentation>(templatePath);

// Přistoupí k Vba modulu a odebere jej
presentation->get_VbaProject()->get_Modules()->Remove(presentation->get_VbaProject()->get_Modules()->idx_get(0));

// Uloží prezentaci
presentation->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptm);

Extrahovat VBA makra

Create an instance of the Presentation class and load the presentation containing the macro.
Check if the presentation contains a VBA Project.
Loop through all the modules contained in the VBA Project to view the macros.

This C++ code shows you how to extract VBA macros from a presentation containing macros:


	// Cesta k adresáři dokumentů.
	const String templatePath = u"../templates/VBA.pptm";

	// Načte prezentaci obsahující makro
	SharedPtr<Presentation> pres = MakeObject<Presentation>(templatePath);


	if (pres->get_VbaProject() != NULL) // Kontroluje, zda prezentace obsahuje VBA projekt
	{
		
		//for (SharedPtr<IVbaModule> module : pres->get_VbaProject()->get_Modules())
		for (int i = 0; i < pres->get_VbaProject()->get_Modules()->get_Count(); i++)
		{
			SharedPtr<IVbaModule> module = pres->get_VbaProject()->get_Modules()->idx_get(i);

			System::Console::WriteLine(module->get_Name());
			System::Console::WriteLine(module->get_SourceCode());
		}
	}

Zkontrolovat, zda je VBA projekt chráněn heslem

Using the IVbaProject::get_IsPasswordProtected property, you can determine whether a project’s properties are password-protected.

Create an instance of the Presentation class and load a presentation that contains a macro.
Check whether the presentation contains a VBA project.
Check whether the VBA project is password-protected to view its properties.

auto presentation = MakeObject<Presentation>(u"VBA.pptm");
    
if (presentation->get_VbaProject() != nullptr) // Zkontroluje, zda prezentace obsahuje VBA projekt.
{
    if (presentation->get_VbaProject()->get_IsPasswordProtected())
    {
        Console::WriteLine(u"The VBA Project '{0}' is protected by password to view project properties.", presentation->get_VbaProject()->get_Name());
    }
}
    
presentation->Dispose();

Často kladené otázky

Co se stane s makry, když uložíte prezentaci jako PPTX?

Macros will be removed because PPTX does not support VBA. To keep macros, choose PPTM, PPSM, or POTM.

Může Aspose.Slides spouštět makra v prezentaci, například k aktualizaci dat?

No. The library never executes VBA code; execution is only possible inside PowerPoint with the appropriate security settings.

Je podporována práce s ActiveX ovládacími prvky spojenými s VBA kódem?

Yes, you can access existing ActiveX controls, modify their properties, and remove them. This is useful when macros interact with ActiveX.

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