VB COM, Tab Stop not working

Tab Stop not working

Author	Message
Denni #1 / 6	Tab Stop not working Hoi, I working on a program which can download and install components. After a component is installed a dispatch is created to get the name and icons etc. After a component is selected to activate, the components "DoForm" function is called which in VB does a load form and returns the window handle. The container program, written in VC, uses this handle to place the componenet within its client space. All works well except for the TabStop's !!!! When writing a client component in VC I can send a WM_NEXTDLGCTL on receiving a VK_TAB. But when the component is written in VB it does not seem te work. So my questions are, how does the TabStop work in VB and how can I make it work? Thanks, Dennis
Sun, 13 Nov 2005 17:10:12 GMT

sujash #2 / 6	Tab Stop not working I never tried similer thing but one thing that crossed my mind : Have you set the 'TabIndex' properties (properly, i.e. the sequence you want the Tab Stop to work) for the controls on VB Form? HTH -- Ashok Gupta - ashi This posting is provided "AS IS" with no warranties, and confers no rights. Quote: > Hoi, > I working on a program which can download and install components. After a > component is installed a dispatch is created to get the name and icons etc. > After a component is selected to activate, the components "DoForm" function > is called which in VB does a load form and returns the window handle. The > container program, written in VC, uses this handle to place the componenet > within its client space. > All works well except for the TabStop's !!!! > When writing a client component in VC I can send a WM_NEXTDLGCTL on > receiving a VK_TAB. But when the component is written in VB it does not seem > te work. > So my questions are, how does the TabStop work in VB and how can I make it > work? > Thanks, > Dennis
Sun, 13 Nov 2005 18:07:16 GMT

Denni #3 / 6	Tab Stop not working Thaks for your quick responce but: Yes the 'TabIndex' proprty is set and when I do the same, but using a VB program to host the component it works fine. Quote: > I never tried similer thing but one thing that crossed my mind : > Have you set the 'TabIndex' properties (properly, i.e. the sequence you want > the Tab Stop to work) for the controls on VB Form? > HTH > -- > Ashok Gupta - ashi > This posting is provided "AS IS" with no warranties, and confers no rights. > > Hoi, > > I working on a program which can download and install components. After a > > component is installed a dispatch is created to get the name and icons > etc. > > After a component is selected to activate, the components "DoForm" > function > > is called which in VB does a load form and returns the window handle. The > > container program, written in VC, uses this handle to place the componenet > > within its client space. > > All works well except for the TabStop's !!!! > > When writing a client component in VC I can send a WM_NEXTDLGCTL on > > receiving a VK_TAB. But when the component is written in VB it does not > seem > > te work. > > So my questions are, how does the TabStop work in VB and how can I make > it > > work? > > Thanks, > > Dennis
Sun, 13 Nov 2005 19:16:49 GMT

Vlad Vissoultche #4 / 6	Tab Stop not working this is going to be difficult to make work smoothly. simply put, VB forms are not meant to be "sited" in this way. otherwise, we could just forget about writing custom activex controls are do all the UI with forms sited on forms and so on. one thing that i have found out is that if you site a form like this and you need to make the taborder working you have to call SetFocus on a usercontrol placed on it. that is in your DoForm method try to call SetFocus on an instance of a custom VB usercontrol (the "siter" control). unfortunately the behavior you will get is not consistent. if you site two forms on your container you can't automagically persuade them to forward focus to each other i.e. once a form gets the focus the tab key will cycle the controls on it only. HTH, </wqw> Quote: > Hoi, > I working on a program which can download and install components. After a > component is installed a dispatch is created to get the name and icons etc. > After a component is selected to activate, the components "DoForm" function > is called which in VB does a load form and returns the window handle. The > container program, written in VC, uses this handle to place the componenet > within its client space. > All works well except for the TabStop's !!!! > When writing a client component in VC I can send a WM_NEXTDLGCTL on > receiving a VK_TAB. But when the component is written in VB it does not seem > te work. > So my questions are, how does the TabStop work in VB and how can I make it > work? > Thanks, > Dennis
Sun, 13 Nov 2005 19:29:41 GMT

Mostl #5 / 6	Tab Stop not working Hoi if I understand you, you calling into a COM object, getting the window handle and then displaying this directly, dont like this at all, how to connect accelerator keys and focus issues and and is going to drive you nuts. But you using C, clearly a hot programmer, so go have a look at ATL and a class called CAxWindow, it can host controls, and you'll be able to do this stuff. Good luck Quote: > Hoi, > I working on a program which can download and install components. After a > component is installed a dispatch is created to get the name and icons etc. > After a component is selected to activate, the components "DoForm" function > is called which in VB does a load form and returns the window handle. The > container program, written in VC, uses this handle to place the componenet > within its client space. > All works well except for the TabStop's !!!! > When writing a client component in VC I can send a WM_NEXTDLGCTL on > receiving a VK_TAB. But when the component is written in VB it does not seem > te work. > So my questions are, how does the TabStop work in VB and how can I make it > work? > Thanks, > Dennis
Wed, 16 Nov 2005 08:28:26 GMT

Vadim Melni #6 / 6	Tab Stop not working Hi, Quote: > When writing a client component in VC I can send a WM_NEXTDLGCTL on > receiving a VK_TAB. But when the component is written in VB it does not seem > te work. > So my questions are, how does the TabStop work in VB and how can I make it > work? I didn't work with VB form before, and might be wrong. In my understanding VB form exposed to your VC container as ActiveX control (or maybe Active Document ?). For in-place activated ActiveX controls container uses IOleInPlaceActiveObject::TranslateAccelerator to process accelerator-key window messages. Inside TranslateAccelerator control handles related messages, for example processes TAB key, etc. Also IOleControl::GetControlInfo/OnMnemonic can be used by container to proceed control accelerators. Active Documents container calls IOleInPlaceFrame::TranslateAccelerator for in-place activated documents. So to make TAB key working you need to update container's message loop, and call control's IOleInPlaceXXX::TranslateAccelerator method there, when it's necessary (usual place is where container makes own Win32 API ::TranslateAccelerator call). Hope it helps. -- Best regards, Vadim Melnik _____________________ http://www.docsultant.com/
Wed, 16 Nov 2005 17:41:19 GMT

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