How pass the data from dialog box to mainwindow

[IamSumit]

The example that i have given to you is very simple.
For this You need to work on SIGNAL and SLOT ;
your problem is very basic.
Just try to get basic knowledge from tut and docs.
if not solved then find various link/tutorial available on net.
Hope it helps.

[Pawan Pal]

I know Single Slot function. already i used this mechanism ok but its not work

[Pawan Pal]

Hi
This is my code, how to used 'strlen' command. I want display the number of character.

string str = "Amazon";

if(!strlen(str.c_str))
{
ui->textEdit->setText(str);

}

[IamSumit]

You should use QString .

QString str ="Example"

int len = str.length();

hope it helps

[Pawan Pal]

Hi Everybody
how used and compare two string. This is my code.

void MainWindow::start_cummunication()

{

if (!strcmp("!PKS",start_cumm) !=0);

else

    ui->textEdit->setText("Error : Communication
    NotEstabilished");

}

[Pawan Pal]

Hi Sumit

Thanks, for code but its not working, comeing errror.
I written this code.

 QString str = "loni";
 int length = str.length();
 ui->lineEdit->setText(length);

Error : invalid conversion from 'int' to 'const char*' [-fpermissive]

[andreyc]

Try this one
@
QString str = “loni”;
int length = str.length();
ui->lineEdit->setText(QString("%1").arg(length));
@

[IamSumit]

Hi Pawam.
[quote author="Pawan Pal" date="1396583482"]Hi Sumit

Thanks, for code but its not working, comeing errror.
I written this code.

 QString str = "loni";
 int length = str.length();
 ui->lineEdit->setText(length);

Error : invalid conversion from 'int' to 'const char*' [-fpermissive]

[/quote]

edit your code in one line
ui->lineEdit->setText(QString::number(length));
Hope it helps

[Pawan Pal]

Thanks Sumit

Its working

[Pawan Pal]

Thanks andreyc

your code is working

[Pawan Pal]

Plz Help me