COMCreateInstance (Function)

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WINDEV, WEBDEV Y WINDEV MOBILE

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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

// Initialize the COM calls
API("ole32", "CoInitialize", 0)

// Initialize a Unicode string containing 260 characters
WallPaper is UNICODE string
WallPaper = AnsiToUnicode(RepeatString(" ", 260))

// Declare a COMObject variable
ActiveDesktop is COMObject

// Retrieve the interface for handling the desktop
ActiveDesktop = COMCreateInstance("75048700-EF1F-11D0-9888-006097DEACF9", ...
"F490EB00-1240-11D1-9888-006097DEACF9")
IF ErrorOccurred = False THEN
// Retrieve the image of the desktop wallpaper
COMCallMethod(ActiveDesktop, 4, &WallPaper, 260, 1)

Info("The image of the desktop is: " + UnicodeToAnsi(WallPaper))
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

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

Component: wd290vm.dll