[HELP] C++ VS to QT

John_38

Hello,
Thanks to you to have answered so fast!
I think that I badly expressed myself.
I am developing a software for the modification of a game.
I make the attachment for the process by detection of the name of the window.
The name of the window is: Call of Duty ® - ship - USERNAME (your steam username).
Here is the code which I have at present in my source(spring):
HWND hWnd = FindWindow (0, L " Call of Duty ® - ship - ");
I would like to make this:
HWND hWnd = FindWindow (0, L " Call of Duty ® - ship - " + ui-> lineEdit-> text ());
But it does not work.*
Can you give me work code ?

And in LineEdit he put in his username.
See you what I wants to say ?

Thanks to you!

Best regards,
John.

JohanSolo

@John_38 said:

HWND hWnd = FindWindow (0, L " Call of Duty ® - ship - " + ui-> lineEdit-> text ());
But it does not work.*

Because you cannot concatenate const char* and QString. Use QString( " Call of Duty ® - ship - %1" ).arg( ui-> lineEdit-> text ()) which you should probably transform into const char* afterwards.

John_38

@John_38 said:

HWND hWnd = FindWindow (0, L " Call of Duty ® - ship - " + ui-> lineEdit-> text ());

Thank to your answer ! :-)

Here is what has to look like my code?:
QString("Call of Duty ® - ship - %1").arg(ui->lineEdit->text())

JohanSolo

@John_38 said:

@John_38 said:

HWND hWnd = FindWindow (0, L " Call of Duty ® - ship - " + ui-> lineEdit-> text ());

Thank to your answer ! :-)

Here is what has to look like my code?:
QString("Call of Duty ® - ship - %1").arg(ui->lineEdit->text())

I don't know about FIndWindow signature, I'm assuming it's const char*, therefore your line should read

HWND hWnd = FindWindow (0, QString("Call of Duty ® - ship - %1").arg(ui->lineEdit->text()).toLocal8Bit().constData());

EDIT: If you want help, please give more detail as "it does ot work" doesn't give us much information. My crystal ball is currently unavailable for repairs...

John_38

@JohanSolo said:

HWND hWnd = FindWindow (0, QString("Call of Duty ® - ship - %1").arg(ui->lineEdit->text()).toLocal8Bit().constData());

I have test your code.
I have this error: http://prntscr.com/bu9r6r

JohanSolo

Maybe toStdWString would help...

John_38

@John_38 said:

HWND hWnd = FindWindow (0, QString("Call of Duty ® - ship - %1").arg(ui->lineEdit->text()).toLocal8Bit().constData());

Oh :/
http://prntscr.com/bu9zox

JohanSolo

I'm sorry, but I have no idea about what is this LPCWSTR type is... Therefore I cannot give you any hints on how to convert QString to this type.

John_38

I have found !!!!
Big thank to @JohanSolo !
Code: HWND hwnd = FindWindow (0, QString("Call of Duty® - ship - %1").arg(ui->lineEdit->text()).toStdWString().c_str());

JohanSolo

@John_38 said:

I have found !!!!
Big thank to @JohanSolo !
Code: HWND hwnd = FindWindow (0, QString("Call of Duty® - ship - %1").arg(ui->lineEdit->text()).toStdWString().c_str());

Good job! You're welcome.