Text not displaying on windows xp, QT 5.6.1

[Michael Muxi]

That sounds very promising, I'll give it a try tomorrow morning. Thank you very much :)

[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!