Question about QT Creator and MinGW - (Minimalist GNU for Windows)

[deepzero]

No, there isnt. Qt draws its own controls, rather than using native windows ones.


That also means that at some point in the code the value for the slider has to be actively set, typically in the constructor of the Form.

This should be done by calling the setSliderPosition(int) method of the slider.


So what you will want to do is find the " setSliderPosition" export in QtGui.dll, breakpoint it, and somehow figure out which slider is the one you want.

[Trit0n]

Seems a little more complex ...
the only references that I can find are (in QtGui (4) dll.):
ASCII "slider_handle"
ASCII "scrollbar_slider"
ASCII "slider_groove"
ASCII "slider_handle"
ASCII "2sliderPressed ()"
ASCII "2sliderMoved (int)"
ASCII "2sliderReleased ()"
ASCII "QAbstractSlider"
ASCII "QSlider"
but none of these references is really useful.
the reference: "sets lider position" is only visible in the PE
setSliderPositionEi:
00324340h: 73 65 74 53 6C 69 64 65 72 50 6F 73 69 74 6F 69; setSliderPositio
00324350h: 6E 45 69 00 72 0D 5A 5F 4E 31 35 51 41 62 73 74; nEi.r._ZN15QAbst
00324360h: 72 61 63 74 53 6C 69 64 65 72 38 73 65 74 56 61; ractSlider8setVa
00324370h: 6C 75 65 45 69 00 00 00 46 0E; lueEi ... F.
The reference: "ZN15Q" is also in the QtGui (4) dll present.
but not in Ollydbg
Any idea?

[mr.exodia]

Originally Posted by Trit0n

Seems a little more complex ...
the only references that I can find are (in QtGui (4) dll.):
ASCII "slider_handle"
ASCII "scrollbar_slider"
ASCII "slider_groove"
ASCII "slider_handle"
ASCII "2sliderPressed ()"
ASCII "2sliderMoved (int)"
ASCII "2sliderReleased ()"
ASCII "QAbstractSlider"
ASCII "QSlider"
but none of these references is really useful.
the reference: "sets lider position" is only visible in the PE
setSliderPositionEi:
00324340h: 73 65 74 53 6C 69 64 65 72 50 6F 73 69 74 6F 69; setSliderPositio
00324350h: 6E 45 69 00 72 0D 5A 5F 4E 31 35 51 41 62 73 74; nEi.r._ZN15QAbst
00324360h: 72 61 63 74 53 6C 69 64 65 72 38 73 65 74 56 61; ractSlider8setVa
00324370h: 6C 75 65 45 69 00 00 00 46 0E; lueEi ... F.
The reference: "ZN15Q" is also in the QtGui (4) dll present.
but not in Ollydbg
Any idea?

http://harmattan-dev.nokia.com/docs/library/html/qt4/qslider.html#tickPosition-prop

Qt sometimes uses strange names, probably you are looking for something like this... if you have programming experience, you could try to make a small program that sets the position and then check which imports are used.

Greetings