Text not displaying on windows xp, QT 5.6.1

Michael Muxi

OK I rebuilt with -no-directwrite, rebuilt my app, and unfortunately I still cannot see any text.

Looks like I may need to use crufty old MFC for this project.

Rondog

I don't know what was changed between 5.6.0 and 5.6.1 but I suspect it was only minor changes (it should be only minor changes). I have not had this issue with 5.6.0 on WinXP.

In my case I built my version of Qt from the source and did this on WinXP. This could be the difference I suppose. The options -target xp and -no-directwrite are important if you plan to run on XP.

I did have to change the configure executable so it would run on XP but otherwise I had no issues compiling and running on this OS.

Michael Muxi

You know, I didn't even consider trying 5.6.0. I'll give it a shot. Thanks!

Michael Muxi

@Rondog, did you include angle and icu in your compile? I haven't figured that part out yet, and I"m not sure if they are essential for xp support.

Michael Muxi

Unfortunately compiling 5.6.0 with the -no-directwrite flag still isn't displaying any text.

hskoglund

Hi, perhaps there's some problem with your OpenGL/video driver.
You can check (If you have Qt installed on your WIndows XP) start Qt Creator go to the Welcome page, can you see the examples pictures?

Rondog

@Michael-Muxi I did not include angle or ICU.

I don't have any problems with 5.6.0 on WinXP. Everything I write I test on WinXP and I definatly would notice if text was missing. So what is the difference?

In my case I compile on WinXP (with the options -target xp and -no-directwrite). I am using MinGW. I don't really do anything out of the ordinary as far as I know. What is your setup?

mrjj

@Rondog

Hi
If possible and you have the time, it could be really interesting
with a sample test app + the dlls from your setup.

To see if that runs on same pc where text is missing.

Rondog

This is a link to something with Qt 5.6.0: http://selectcalibration.ca/downloads/errorsimulator-1.1.x86.zip

My setup is:
WinXP SP2
MinGW 482
Qt 5.6.0
Compile options: -no-icu -nomake examples -nomake tests -opengl desktop -plugin-sql-mysql -target xp -no-directwrite
Compile notes: I had removed a number of folders from the Qt sources before installing (like webkit and a number of other un-needed items). You could use '-skip xxx' instead of removing the folders.

In order for me to run the executable 'qtbase/configure.exe' on WinXP I had to edit this file to change the version as it was built targeting a newer OS. A good explanation of how to do this is here: http://www.tripleboot.org/?p=423 In my case I changed the values at offsets 0x148, 0x149, and 0x14a to be 05, 00, 01

I need the software to be able to run on WinXP so I built it on this OS. If there was a problem it should have appeared when compiling Qt. There are too many directives that can change what is used when compiling when moving between different OS's which is why I wanted to compile using XP. Moving forward is usually not an issue (WinXP -> Win10) but going the other way is often problematic.

I am hoping XP will disappear one day soon.

mrjj

@Rondog
thank you.
I can confirm it runs on plain xp and seems to pretty happy - text wise.

I am hoping XP will disappear one day soon.

Only when all the pcs dies or we simply stop supporting it.
The vendor already has. We could too. if we dared.

Michael Muxi

Thanks to everyone who has replied to this thread.

@Rondog, your application is working perfectly on my test machine, all text is displaying as normal.

I have been compiling on a windows 10 machine with the vs2015 compiler, not on xp. I'll try replicating your build there, and if that fails I'll try on an xp machine.

Thanks again!