Form Question - About Min and Max

[jmsrickland]

Well it didn't work fine for me. I almost jumped out of my chair when I saw the results.

[DataMiser]

So what happened?

When I tested it it simply prevented the window from minimizing or maximizing when you clicked the buttons, not even a flicker.

If it didn't work for you then something must be different. Would be good to tell us what happened and show us what code you used if you want to peruse it.

Of course you could cheat and just display and image of the buttons that doesn't do anything

[jmsrickland]

I used the code you posted. When I click on Max it zooms up to full screen then zooms back down to normal. When I click on Min it zooms to the task bar then comes back to normal. I'm using XP on, I guess a slow PC - 930 Mhz and 256 MB Ram. Maybe that's got a lot to do with it what do you think?

[DataMiser]

I guess. I tested on XP SP3 but on a Quad core 3.2ghz with 4gigs of ram and a high end video card,

Did not even flicker when I tested it here.

256 megs of ram is very low for XP, I don't think i have ever ran it with less than 512 on any system
Do you have shared video on it as well?

[jggtz]

Here's XP 2 GHz and 512 ram and flickers a little

[Arnoutdv]

Private Sub Form_Resize()
  If Me.WindowState <> vbNormal Then Me.WindowState = vbNormal
End Sub

With this code you will always see something happening on the screen.
Because before the WindowState needs to be set to vbNormal it first has to have another state.
All depends on the version of windows and the windows animations what you will see on the screen.

Just use the method provided by Bonnie.

[Niya]

I used the code you posted. When I click on Max it zooms up to full screen then zooms back down to normal. When I click on Min it zooms to the task bar then comes back to normal. I'm using XP on, I guess a slow PC - 930 Mhz and 256 MB Ram. Maybe that's got a lot to do with it what do you think?

Doesn't surprise me. Like I said before, it won't be clean. Bonnie's subclassing method should be clean though since it supposedly discards the message before it has a chance to produce any effect.

[DataMiser]

Hard for me to imagine having to develop on a PC as slow as the one in post #43

In the last 8 years I have given away 4 PCs that were quite a bit stronger than that.

The good thing about a slow pc without much ram is that if your software works on it then it should work on anything the customer has.

For a long time I used a P3 600mhz system for that reason but eventually replaced it with a P4 2.8ghz which is the slowest PC I own at the moment and is being taken out of service as it too is to slow, it is after all over 10 years old.

[ColinE66]

Bonnie's subclassing method should be clean though since it supposedly discards the message before it has a chance to produce any effect.

What he said. That's the bullet-proof way of avoiding flicker - eat the message!

[Niya]

Hard for me to imagine having to develop on a PC as slow as the one in post #43

I don't think you can even buy a PC that slow anymore. That's like what cavemen used.

[jmsrickland]

I have had this PC since the days of Win95 or Win98, not sure. I have never had a reason to buy a new one. Someday I will but not yet

[Niya]

I have never had a reason to buy a new one. Someday I will but not yet

What do you use that for ? NotePad ?

[jmsrickland]

Funny, ha ha. It does what I need, runs well, never had a problem with it. All I have ever done was to upgrade OS's, add a DVD drive, add a nice graphics adapter as well as a nice sound card. Fast enough for me, my graphics are just fine, my Internet is fine, everything is just fine.

[Niya]

Hmm....well I like to play games from time to time and a system that primitive won't run any game I have except for Doom. I suppose if you're just using it for office stuff, surfing the internet, programming and watching videos even a 133 MHz would suffice.

[jmsrickland]

I don't get into games unless I write them then it's never a game where speed counts

[lmstearn]

Had to reduce the Power Plan for this rig as it has to be left on for the hibernate not working. So not too far off the 133 Mhz. :P
@Bonnie West, thanks for the code.
Just a couple of things with forms without control boxes, I think SC_RESTORE is default so:

 Select Case wParam And GWL_STYLE
Case SC_CLOSE, SC_MAXIMIZE, SC_MINIMIZE', SC_SIZE 'works too, but not so well with Aero Snap

And if the subclassing is attempted before the form is shown, it won't work at all.
The IDE Edit & Continue debugging says no to it as well (verification?). All IDE actions are "suspended" but for the F5 continuation. So might be an idea to disable it when running the IDE.

[DataMiser]

133mhz! I do not think I have saw anything that slow since the mid 90s

[lmstearn]

And JMS has upgraded the OS on it as well. It has to be some kind of record to be running W8-W10 on it, unless you are permanently in safe mode.
Another ghost from the 90's: MCI! My code uses MCI through a timer which works well enough, but sometimes when applying SC_MAXIMIZE on the subclassed form in XP (just for fun you understand), sometimes pops out this mysterious and wonderful thing, the MCI Command Window.
Nothing much Google throws up on this pure white & wondrous fixture which encompasses the whole screen (SC_MAXIMIZE you know) with nothing on it but MCI Command Window in the title bar. A command window sans the console- certainly an undocumented feature!

[MikeSW17]

To sum up: