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Conference abbott::visual_basic

Title:	Microsoft Visual Basic

Moderator:	TAMARA::DFEDOR::fedor

Created:	Thu May 02 1991
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2565
Total number of notes:	10453

2519.0. "Opening a full screen form" by LEXSS1::GINGER (Ron Ginger) Wed Mar 19 1997 09:07

    I want a form to open as full screen. I set its window prop to be
    maximized, and the form does open full screen. Next I want to size some
    of my frames and controls in proportion to the large window. 
    
    I tried getting the screen size with
    
    SCREENWIDTH= Me.width
    SCREENHEIGHT = Me.height
    
    then using this to set various height/width properties. If I put the
    code in either Form_initialize or Form_open, the width value returned
    is the one set at design time.
    
    If I put the commands into a Command_click procedure, let the window
    open with all the controls as design size, then running the
    Command_clik does what I want.
    
    I guess this is a probelm of timing, when the form is being loaded it
    doesnt yet have the full screen size?
    
    What is the right way to do this?

T.R	Title	User	Personal Name	Date	Lines
2519.1		AXEL::FOLEY	http://axel.zko.dec.com	`Wed Mar 19 1997 12:00`	6
	You might want to see about getting a control that does this for you. mike
2519.2		LEXSS1::GINGER	Ron Ginger	`Wed Mar 19 1997 15:44`	6
	>You might want to see about getting a control that does this for you. any examples of such a control, or sources?
2519.3	Try SCREEN.WIDTH and SCREEN.HEIGHT	MRSERV::PETERS		`Wed Mar 19 1997 16:43`	11
	Since you mention wanting the "screen size", why not use the expressions SCREEN.WIDTH and SCREEN.HEIGHT? But note they give you the true screen dimensions, where Me.width and Me.height will give you the form dimensions. In your case, with the form maximized, these will be the same. My typical use for these sets of values is for centering a form on the screen. Don
2519.4		LEXSS1::GINGER	Ron Ginger	`Thu Mar 20 1997 09:28`	10
	thanks, Ill look at screen.width. I am curious as to why the me.height is incorrect at the time a form_load sub runs. Is there any good description of the exact sequence of events for this? When do the general declarations of a form get processed? I assume they must be done before a form_initialize sothat variables declared will be ready. Related to form opening, I notice that the defalt form name comes up as Form1, yet the default sub is Form_load, not Form1_load. Why is this?
2519.5	Multiple resize calls	TURRIS::twuwuv.zko.dec.com::hower		`Thu Mar 20 1997 10:31`	6
	Well, I've noticed that form_resize gets called several times before the form actually gets displayed - and the scaleXXX properties are slightly different every time. Never got the chance to investigate what was actually going on, but it may be related to design time/display time size updating. Might be worth checking? Helen
2519.6		AXEL::FOLEY	http://axel.zko.dec.com	`Thu Mar 20 1997 10:32`	8
	RE: .2 I think Sheridan or some of the other popular control makers have something. mike
2519.7		MIASYS::HETRICK		`Thu Mar 20 1997 12:40`	5
	Re: .0 The resize event is probably the one you want. Brian
2519.8	form doesn't display until Load even completes	PGREEN::HAYESI	Is that a warp nacelle in your pocket...?	`Mon Mar 24 1997 09:33`	11
	If I recall, the Form-Load event completes (normally) before the form actually displays. IN this case, I would guess that the 'maximise' process doesn't occur until just before the form displays hence the hight and width properties won't be updated until after the Form_Load completes. You can force the form to display early by using the Show method (can't remember if you need a DoEvents as well). Cheers Ian.
2519.9		XSTACY::PATTISON	A rolling stone gets the worm	`Mon Mar 24 1997 13:02`	6
	Putting the code in Form_Resize instead of Form_Initialize should get round the problem. The resize event always gets called when a form is displayed for the first time. Dave