COMCreateInstance (Function)

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English

This content has been translated automatically. Click here to view the French version.

Help / WLanguage / WLanguage functions / Standard functions / Windows functions / Miscellaneous Windows functions

The GUIDs

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

COMCreateInstance (Function)

In french: COMCréeInstance

Instantiates a COM object (Component Object Model). A specific interface of the object is retrieved so that it can be used with COMCallMethod.

Example

// Initialisation des appels COM
API("ole32", "CoInitialize", 0)

// Initialisation d'une chaîne Unicode de 260 caractères
PapierPeint is string Unicode
PapierPeint = AnsiToUnicode(RepeatString(" ", 260))

// Déclaration d'une variable de type COMObjet
ActiveDesktop is COMObject

// Récupération de l'interface de manipulation du bureau
ActiveDesktop = COMCreateInstance("75048700-EF1F-11D0-9888-006097DEACF9", ...
		"F490EB00-1240-11D1-9888-006097DEACF9")
IF ErrorOccurred = False THEN
	// Récupération de l'image de papier peint du bureau
	COMCallMethod(ActiveDesktop, 4, &PapierPeint, 260, 1)

	Info("L'image du bureau est : " + UnicodeToAnsi(PapierPeint))
END

Syntax

<Result> = COMCreateInstance(<Class Identifier> , <Interface Identifier>)

<Result>: COMObject variable

COMObject variable corresponding to the interface that will be used by COMCallMethod.

<Class Identifier>: Character string

GUID (globally unique identifier) of the class of the COM object to instantiate.

<Interface Identifier>: Character string

GUID (globally unique identifier) of interface of object to retrieve.

Remarks

The GUIDs

GUIDs are strings of 32 hexadecimal characters separated or not by hyphens (for example: 265EBF50-D4A0-448D-ADC6-EAD971CFB537). The case has no importance.

Component: wd300vm.dll