no error???? why???

[Shuchi Agrawal]

i m using Qt4.2.2 evaluation version.
following are my files in a project
in 7th line of form.cpp i m calling ui.disp() and
on line no. 13 in function disp() i m calling QmessageBox..
my ques is that why its not giving error during compile.
i m using nmake1.5 n winXP n Visual studio C++ 6.0.
plz suggest me better programming in my given code..

can any1 help me to draw a line or anything on the central widget when i click a menu item?
thanks in advance

[Cesar]

Try

connect(ui.pushButton, SIGNAL(clicked()), this, SLOT(disp()));

connect(ui.pushButton, SIGNAL(clicked()), this, SLOT(disp()));

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Note, that you should mention slot's name and parameters, but not the object instance.

WBR, Cesar

[Shuchi Agrawal]

thanks Cesar but i m able to do it correctly.so my ques was that why the given code does not give error as there is no slot in Ui::MainWindow and when QmessageBox class has not been included, still its not showing error. why??????

[jpn]

Signal slot connections are established at run time. You won't get compilation errors if you misspell something in the connect statement (unless the typo is so bad that it doesn't pass syntactically). The connect statement returns false if the connection fails (and in this case it does print information on the debug output):

Object::connect: No such slot MainWindow::ui.disp()
Object::connect: (sender name: 'pushButton')
Object::connect: (receiver name: 'MainWindow')

You are including the whole QtGui module which leads to including QMessageBox as well.

[Shuchi Agrawal]

thanks a lot jpn but i cud not understand tht how u got the 3 lines or error u have given in ur reply.
plz explain then how can i know the logaical error like the one i did in my code in slot.
and can u tel me the way to draw line n all on central widget and activate context menu(floating menu)

[jpn]

thanks a lot jpn but i cud not understand tht how u got the 3 lines or error u have given in ur reply.
plz explain then how can i know the logaical error like the one i did in my code in slot.

Are you running the program in Visual Studio? It should appear in the debug output window.

and can u tel me the way to draw line n all on central widget and

Override QWidget::paintEvent() for the widget you want to paint on and use QPainter to draw the line. For example, if you want to paint on the central widget in a main window, you must reimplement the paintEvent() for the central widget, not for the main window.

activate context menu(floating menu)

See this post.

[Shuchi Agrawal]

hey jpn,
thanks for menu n paint help.
but i m generally creating .ui files,then .h and .cpp files anr running in cmd prompt. so can u help me to make my project with Visual Studio
i hv installed VS C++ 6.0 on my system but not able to use it as i dnt know.

[jpn]

so can u help me to make my project with Visual Studio
i hv installed VS C++ 6.0 on my system but not able to use it as i dnt know.

The commercial edition of Qt has at least some loose integration to VS6.
Presumably you have the commercial edition of Qt so try downloading and installing the Qt-VsAddin package. The package should give you some tools for managing Qt project directly from VS.

Another solution is to add "CONFIG += console" to the .pro file to make an additional console window appear for the debug output.

[Shuchi Agrawal]

Another solution is to add "CONFIG += console" to the .pro file to make an additional console window appear for the debug output.

this thing is not working n i wil implement ur plugin suggestion n wil let u know..

hey i m attaching my code.so can u see u tell that is it the right way to paint on central widget(its the way u suggested). if not plz tel me the correct way..

and is the moveDockWindow is the same for Floating window in qt4 or is there some other function or class for same?

[jpn]

this thing is not working n i wil implement ur plugin suggestion n wil let u know..

You need to always re-run qmake after modifying the .pro file to generate a new makefile. Did you, by any chance, forget that step?

hey i m attaching my code.so can u see u tell that is it the right way to paint on central widget(its the way u suggested). if not plz tel me the correct way..

I can't see any attachments..

and is the moveDockWindow is the same for Floating window in qt4 or is there some other function or class for same?

What do you mean by "moveDockWindow"? For example the "Sidebar" in Qt Designer is a QDockWidget. Did you mean that?

I can see two Qt3Support methods called "moveDockWindow":

• Q3MainWindow::moveDockWindow()
• Q3DockArea::moveDockWindow()

Do they have something to do with this? Please be specific with the terms and class names you use. It will be easier for others to interpret the meaning of the post.

[jpn]

The commercial edition of Qt has at least some loose integration to VS6.
Presumably you have the commercial edition of Qt so try downloading and installing the Qt-VsAddin package. The package should give you some tools for managing Qt project directly from VS.

Bah sorry, it's reading right there in the first post that you are using an evaluation version. Actually, I have no clue if the evaluation version contains the Qt VsAddin package (which is the only official way to integrate Qt4 into VS6). Can anyone confirm whether it does or not? Sorry for the confusion.

[wysota]

Can anyone confirm whether it does or not? Sorry for the confusion.

AFAIK it does.

[Shuchi Agrawal]

Bah sorry, it's reading right there in the first post that you are using an evaluation version. Actually, I have no clue if the evaluation version contains the Qt VsAddin package (which is the only official way to integrate Qt4 into VS6). Can anyone confirm whether it does or not? Sorry for the confusion.

hey jpn,

form.cpp
form.h
form.ui

above are the code.so check them n tel tht is it the right way to paint(draw line n a point) on the central widget on a menu click event?[i think its not the right way, though its working]

by floating window i mean the sidebar which u can see on paint application and which can be dragged to any part of the paint window.
plz see to it..
thaks in advance

[Shuchi Agrawal]

originally osted my WYSOTA

can u tel me ful form of AFAIK?

[Shuchi Agrawal]

I can't see any attachments..

i have atached them now.

What do you mean by "moveDockWindow"? For example the "Sidebar" in Qt Designer is a QDockWidget. Did you mean that?

yes i mean with sidebar only which is QDockWidget class in Qt.
thanks

[aamer4yu]

AFAIK == As Far As I Know

for integrating Qt with Visual Studio check this

I have integrated Qt Open Source edition with Visual Studio 2005. But yes designer is not integrated , u have to copy the ui files and compile.
hope this helps

[Shuchi Agrawal]

AFAIK == As Far As I Know

thanks

the link http://qtnode.net/wiki/Qt4_with_Visual_Studio w/c u referred is good.but,
when in this its given steps of qt open source[not commercial evaluation version] with VS 6.0
so in the step Patching the Qt sources i m getting the following :

C:\>cd qt\4.2.2

C:\Qt\4.2.2>nmake \?

Microsoft (R) Program Maintenance Utility Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

NMAKE : fatal error U1069: no match found for wildcard '\?'
Stop.

C:\Qt\4.2.2>nmake /?

Microsoft (R) Program Maintenance Utility Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

Usage: NMAKE @commandfile
NMAKE [options] [/f makefile] [/x stderrfile] [macrodefs] [targets]

Options:

/A Build all evaluated targets
/B Build if time stamps are equal
/C Suppress output messages
/D Display build information
/E Override env-var macros
/HELP Display brief usage message
/I Ignore exit codes from commands
/K Build unrelated targets on error
/N Display commands but do not execute
/NOLOGO Suppress copyright message
/P Display NMAKE information
/Q Check time stamps but do not build
/R Ignore predefined rules/macros
/S Suppress executed-commands display
/T Change time stamps but do not build
/U Dump inline files
/Y Disable batch-mode
/? Display brief usage message

C:\Qt\4.2.2>installpatch42.bat
patching file examples/threads/waitconditions/waitconditions.pro
patching file misc/bcc32pch/bcc32pch.cpp
patching file misc/bcc32pch/bcc32pch.pri
patching file misc/bcc32pch/bcc32pch.pro
The next patch would create the file misc/bcc32pch/Makefile.win32-borland,
which already exists! Assume -R? [n] y // when i m pressing "n" then its microsoft error
patching file misc/bcc32pch/Makefile.win32-borland
Press any key to continue . . .

C:\Qt\4.2.2>configure.exe --help
'configure.exe' is not recognized as an internal or external command,
operable program or batch file.

C:\Qt\4.2.2>qconfigure.exe --help
'qconfigure.exe' is not recognized as an internal or external command,
operable program or batch file.

C:\Qt\4.2.2>

so can u help me out in this???

[jacek]

C:\Qt\4.2.2>configure.exe --help
'configure.exe' is not recognized as an internal or external command,
operable program or batch file.

AFAIR you can't recompile the evaluation version, so configure.exe isn't shipped with it.

[Shuchi Agrawal]

AFAIR you can't recompile the evaluation version, so configure.exe isn't shipped with it.

oh is it??..ok...
thanks...

[Shuchi Agrawal]

hey jpn,
i hv created a new thread for my paint ques.. so plz reply on tht..
thanks