Visual Basic Foro

Thanks I have resolved

Hello

I have a question about Creating New Desktop.

In windows OS it's possible to create and run multiple desktops.

...but

It's possible create a new desktop visible only on the secondary display monitor?

Hello

I 'm writing a program that should display on the secondary monitor a form in full screen.

This form must be locked because :
I have to prevent other windows overlap on the secondary display .
The mouse pointer should not be visible on secondary screen.

I thought to implement a Global (system Wide) Hooks using WH_CBT message.
but it seems a drastic solution and difficult to implement.

Have you any idea how can this problem be solved ?

--------------------------------------------------------------------------------------------------------------------------------------------
Estoy escribiendo un programa que se debe mostrar en el monitor secundario de un formulario en pantalla completa.

La ventana de este programa debe ser bloqueada porque:
Tengo que evitar que otras ventanas se superponen en la pantalla secundaria .
El puntero del ratón no debe ser visible en la pantalla secundaria.

Pensé para implementar Global (system Wide) Hooks usando el WH_CBT mensaje
pero parece una solución drástica y difícil de implementar.

¿Tienes alguna idea de cómo se puede solucionar este problema?

Hello and thanks for reply

cobein:
sorry, your link is invalid

Waldo:
You are correct .
The problem is how to check loss of focus of my application to be able to recall again ClipCursor.

Estás en lo correcto .
El problema es cómo controlar la pérdida de foco de mi aplicación, para que pueda volver a ejecutar ClipCursor .

Hola

¿Necesitaré usar clsCom (Coco) , pero no tengo clsTimer ( Cobein ) .
Hay alguien que me puede enviar clsTimer ?

Gracias por la ayuda

HI

I have resolved this problem.
The problems was the LONGLONG datatype.I have changed to CURRENCY in TypeLib.
Now I can SetInt.Problems remains with String datatype,but it is not very important.

Now I need to use a callback function.

I have this Idl definition:
[
    object,
    uuid(1E8701D0-258F-43ED-9EDC-434FD16E922D),
    helpstring("Switcher Object")
] interface IBMDSwitcher : IUnknown
{
    HRESULT AddCallback([in] IBMDSwitcherCallback* callback);
    HRESULT RemoveCallback([in] IBMDSwitcherCallback* callback);
    ..others properties
    };

[
    object,
    uuid(6C6E4441-9421-4729-9951-988659E3A44A),
    helpstring("Switcher Callback Delegate")
] interface IBMDSwitcherCallback : IUnknown
{
    HRESULT PropertyChanged([in] BMDSwitcherPropertyId propertyId);
    HRESULT Disconnected(void);
};
I need to get the Disconnected Event.
How I can Implement this Callback?

Thanks for Help

Hi to all

I have a problem with a third-party com dll.
I have the IDL description of this dll.
I 'm trying to modify this IDL for use dll from vb6.

I have to Get/Set value:

there is no problem to get the values ​​from the dll , but when
I try to set the values ​​, vb raise the error 5:Invalid procedure call or argument (for any datatype)

This is the IDL description: BlockPropertyId are constant
        HRESULT SetFlag([in] BlockPropertyId propertyId, [in] BOOL value);
    HRESULT GetFlag([in] BlockPropertyId propertyId, [out] BOOL* value);
    HRESULT SetInt([in] BlockPropertyId propertyId, [in] LONG value);
    HRESULT GetInt([in] BlockPropertyId propertyId, [out] LONG* value);
    HRESULT SetFloat([in] BlockPropertyId propertyId, [in] double value);
    HRESULT GetFloat([in] BlockPropertyId propertyId, [out] double* value);
    HRESULT SetString([in] BlockPropertyId propertyId, [in] BSTR value);
    HRESULT GetString([in] BlockPropertyId propertyId, [out] BSTR* value);
Someone have any idea about this error ?

I see in the object browser:
Sub SetString(propertyId As BlockPropertyId, value As String)
In vb6 I use this code:
Object.SetString propertyId, "Hello"Why vb raise the error 5 ?

Thanks for Help