Please I someone to assist me.

I downloaded qt 5.5.1. first minGW off line installer, after installation, I run the qt creator only to see a blank window.
I taught it was not properly install. I uninstall it an reinstall, but it still repeat. Meanwhile, the qt designer, qt assistant and qt linguist are opening well. I try the online installer, the same thing happen. I downloaded and install stand alone qt creator 3.6.0. it still display a blank window.
Pls, I want to know what could be the problem and the possible solution. Thanks for the help. I know to qt. My system run on window 7

bestiyke:
Please I someone to assist me.

I downloaded qt 5.5.1. first minGW off line installer, after installation, I run the qt creator only to see a blank window.
I taught it was not properly install. I uninstall it an reinstall, but it still repeat. Meanwhile, the qt designer, qt assistant and qt linguist are opening well. I try the online installer, the same thing happen. I downloaded and install stand alone qt creator 3.6.0. it still display a blank window.
Pls, I want to know what could be the problem and the possible solution. Thanks for the help. I know to qt. My system run on window 7

Can you provide some screenshots ?

codemarshal08:


Can you provide some screenshots ?

And provide us with the specifications of your pc. Are you running a 32bit or 64bits etc
the binaries you downloaded, where is the source?
You need to recompile your English, I can barely understand some of the things you say.

codemarshal08:


Can you provide some screenshots ?

These are some screen shots

More screen shots

This is how you can make $500,000+ in 6 months.
Step 1. Join Four Corners Alliance Group for only a one-time payment of $18
2. Invite 4 friends
3. Help them refer 4 people
4. They duplicate process 6 times
5. You Earn $559,824

Month 1: You invite 4 people you earn $16. Your work is done
Month 2. Those 4 invite 4 people= 16 people, you earn $64
Month 3. Those 16 sign-up 4 people= 64 people, you earn $640
Month 4. Those 64 sign-up 4 people= 256 people, you earn $6,144
Month 5. Those 256 sign up 4 people= 1,024 people, you earn $61,440
Month 6. Those 1,024 sign up 4 people= 4,096 people,you earn $491,20

A total of $559,824

And all you did was pay $18 and invited only 4 people in your first month and helped them get 4 and you were done.

You also earn monthly residual income of up to 76k per month, plus 100% matching commissions from everybody you directly refer. As your 4 sign-ups earn $559,824, you get 100% matching, meaning you earn 4x559k= over 2.2 mill.

Do you know an easier, faster and more affordable way to earn over $500,000? Only having to sign up 4 people?

Create wealth for your family, never have to work again, get the whole family involved. this is an amazing opportunity. And it's so simple. Sign up 4 people and your work is done. How easy is that.

The products that 4 corners sell is a set of Financial Education Literacy which is downloadable in your back office. This is an automated system, it will sell the products for you once you invite 4 people. All you have to do is sit back and relax.

Also in your backoffice you can keep track of your earnings and view your team's growth using the genealogy. Also great Customer Support from the company and in the backoffice is where corporate post news and updates.

Why is 4 corners so successful? because every can afford $18 and everybody knows 4 people and it's simple with no work to do after signing up only 4 people and making sure youhelp them get 4 of their own.

dhtml18:

And provide us with the specifications of your pc. Are you running a 32bit or 64bits etc
the binaries you downloaded, where is the source?
You need to recompile your English, I can barely understand some of the things you say.

My system OS is Window 7, 64bits.
I said, I download and installed Qt SDK version 5.5.1 open source distribution from Qt official site.
I download Qt 5.5.1 for Windows 32-bit (MinGW 4.9.2, 1.0 GB) first and installed (this is offline installation). when I run the qt creator, it display a blank window form as shown by the screen shots. It uninstall the SDK and reinstalled it the second time assuming the first did not install properly. But the qt creator still display as a blank window form. I installed a fresh one online using the online file (Qt Online Installer for Windows (16 MB)). Which did the installation online following the default setting. the online installer installed Qt 5.5 for Windows 64-bit (VS 2013, 823 MB) and Qt 5.4 for Windows 64-bit (VS 2013, 823 MB) with the qt creator. But when I opened the qt creator it still show blank window form.
But the Qt designer, Qt Assistant and Qt Linguist all open with content. screen shots.

bestiyke:
Please I someone to assist me.

I downloaded qt 5.5.1. first minGW off line installer, after installation, I run the qt creator only to see a blank window.
I taught it was not properly install. I uninstall it an reinstall, but it still repeat. Meanwhile, the qt designer, qt assistant and qt linguist are opening well. I try the online installer, the same thing happen. I downloaded and install stand alone qt creator 3.6.0. it still display a blank window.
Pls, I want to know what could be the problem and the possible solution. Thanks for the help. I know to qt. My system run on window 7

pls i am currently facing dat same problem 2 have u gotten solution to urs so dat u can share it here pls

But I never had any issue while installing mine

ijeezlux:
But I never had any issue while installing mine

the problem is not the installation but running d software after the installation. On my former laptop it run well but dis new laptop i bought it is misbehaving but tanks to d internet sha i have found a solution to it

pls i think we need to open a thread those c++ programmers who are interested in using qt so dat ideas and learning can be fast and effective

for those of u who are interested in c++ and is comfortable with the language i think the next book to read is effective c++ by scott meyer if u read that book i swear u will have a deaper understanding of c++ and tanks to ijeezux for recommending programming in c++ this book is good for absolute beginners and it will take u down to intermediate level . Buy that book and u will tank me later

peterincredible:
for those of u who are interested in c++ and is comfortable with the language i think the next book to read is effective c++ by scott meyer if u read that book i swear u will have a deaper understanding of c++ and tanks to ijeezux for recommending programming in c++ this book is good for absolute beginners and it will take u down to intermediate level . Buy that book and u will tank me later

Lol........... u are welcome

all these programming tools are easier to install on Linux than windows, i too had several issues using windows for pyside development....just make the switch (you won't regret it)

Quite an interesting problem cos mine ran straight from the box after installation. My system is Win7 64bit and QtCreator is my ide of choice for coding both qt and non-qt projects.
How do you start it up? Having you tried starting it up directly from the executable in the installation directory

BlueMagnificent:
Quite an interesting problem cos mine ran straight from the box after installation. My system is Win7 64bit and QtCreator is my ide of choice for coding both qt and non-qt projects.
How do you start it up? Having you tried starting it up directly from the executable in the installation directory

its being a while i heard from this guy(bluemagnificient)... it was your trend you created about Qt that really made meand inspired me to switch over to c++ gui programming. in fact i first heard about Qt in one of your trend. you are too much. just wish i could chat with you on other platform. all the same kudos to you and codemarshal

hello gurus i have a little issue i need you guys to help me clarify ...... it goes like this.. when writing or reading data into qdatastream object, is it a must that i set the version of the Qt am using e.g (Qdatastream stream; stream.setVersion(...); ). i also have another question. i always see a certain quint32 magic_number variable when doing data serialization with Qdatastream object. but i dont really know whats the main function of this magic_number variable. is it a must to use it? it making me confused...... thanks in advance for ur answer

ijeezlux:
hello gurus i have a little issue i need you guys to help me clarify ...... it goes like this.. when writing or reading data into qdatastream object, is it a must that i set the version of the Qt am using e.g (Qdatastream stream; stream.setVersion(...); ). i also have another question. i always see a certain quint32 magic_number variable when doing data serialization with Qdatastream object. but i dont really know whats the main function of this magic_number variable. is it a must to use it? it making me confused...... thanks in advance for ur answer

Bro have you read through this ?
http://doc.qt.io/qt-4.8/qdatastream.html#details

codemarshal08:

Bro have you read through this ?
http://doc.qt.io/qt-4.8/qdatastream.html#details

thanks my main but i still have some things disturbing me

QFile file("file.Bleep";
file.open(QIODevice::WriteOnly);
QDataStream out(&file);

// Write a header with a "magic number" and a version
out << (quint32)0xA0B0C0D0;
out << (qint32)123;

out.setVersion(QDataStream::Qt_4_0);

// Write the data
out << lots_of_interesting_data;

Then read it in with:

QFile file("file.Bleep";
file.open(QIODevice::ReadOnly);
QDataStream in(&file);

// Read and check the header
quint32 magic;
in >> magic;
if (magic != 0xA0B0C0D0)
return XXX_BAD_FILE_FORMAT;

// Read the version
qint32 version;
in >> version;
if (version < 100)
return XXX_BAD_FILE_TOO_OLD;
if (version > 123)
return XXX_BAD_FILE_TOO_NEW;

if (version <= 110)
in.setVersion(QDataStream::Qt_3_2);
else
in.setVersion(QDataStream::Qt_4_0);

// Read the data
in >> lots_of_interesting_data;
if (version >= 120)
in >> data_new_in_XXX_version_1_2;
in >> other_interesting_data;

what if the qint32 value read from the qdatastream to the qint32 version variable is not 123.... what will happen

Its so unfortunate that we are temporarily hijacking this thread

Quoting from the link posted by codemarshal08

When inputting or outputting complex types, it's very important to make sure that the same version of the stream (version()) is used for reading and writing

I believe from the doc it is only the storage and retrieval of complex types that might vary with version, basic datatypes are not affected by this

@bestiyke, have you been able to resolve your QtCreator issue

BlueMagnificent:
Its so unfortunate that we are temporarily hijacking this thread

Quoting from the link posted by codemarshal08


I believe from the doc it is only the storage and retrieval of complex types that might vary with version, basic datatypes are not affected by this

@bestiyke, have you been able to resolve your QtCreator issue

can you please name some of the complex data types that may vary with version

For complex types I quote from the link again

If you are producing a new binary data format, such as a file format for documents created by your application

and most probably any custom Datatype of yours like class objects, e.g, layers, filters and brush for an image editing application

ijeezlux:


can you please name some of the complex data types that may vary with version

Hmm, Complex types == !buitIn types

Which one of the following will declare a pointer to an integer at address 0x200 in memory?
1. int *x; *x = 0x200
2. int *x = &0x200;
3. int *x = *0x200;
4. int *x = 0x200;

ijeezlux:
Which one of the following will declare a pointer to an integer at address 0x200 in memory?
1. int *x; *x = 0x200
2. int *x = &0x200;
3. int *x = *0x200;
4. int *x = 0x200;

Number 2 and 3 are syntax errors. Number 1 assigns the value 0x200 to the int variable pointed to, while number 4 assignes the value of the pointer to be 0x200, in order words the address pointed to. So definitely number 4.

Unless you know what you are doing, it is advisable not to assign memory addresses like this

BlueMagnificent:


@bestiyke, have you been able to resolve your QtCreator issue

No permenent solution, but I have to run and close it many times for it to open properly. I have been using it. Thanks. If there is any solution I will appreciate.

peterincredible:
the problem is not the installation but running d software after the installation. On my former laptop it run well but dis new laptop i bought it is misbehaving but tanks to d internet sha i have found a solution to it

Pls can u share the solution. Thanks

peterincredible:
pls i think we need to open a thread those c++ programmers who are interested in using qt so dat ideas and learning can be fast and effective

This is a good Idea. Pls let the thread start. I'm interested.

BlueMagnificent:


Number 2 and 3 are syntax errors. Number 1 assigns the value 0x200 to the int variable pointed to, while number 4 assignes the value of the pointer to be 0x200, in order words the address pointed to. So definitely number 4.

Unless you know what you are doing, it is advisable not to assign memory addresses like this

my guy u are on point