Hook a QT Application with C++ to capture textname of the application

原文地址::http://stackoverflow.com/questions/3278415/hook-a-qt-application-with-c-to-capture-textname-of-the-application

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1、Is it possible to use Win32 Hooks in Qt applications----http://stackoverflow.com/questions/2167876/is-it-possible-to-use-win32-hooks-in-qt-applications

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I have a simple QT application running on Win32 platform. I need to write a C++ program described as: the input is the windows handle of that QT application, which is already available, the output is the text name ( AKA caption ) of the application. I hope someone will show me the way to do this right. Thanks a lot. Smile

c++ qt winapi hook

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edited Jul 19 '10 at 4:27

asked Jul 19 '10 at 4:14

Victor

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2 Answers

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I don't know if I completely understand your question, but you could simply use the GetWindowTextfunction (part of the Windows API) to obtain the title of a window. You must of course pass a native window handle (HWND) to this function, QWidget::winID() is the Qt way to retrieve it.

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answered Jul 19 '10 at 6:24

Greg S

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http://doc.trolltech.com/4.6/qwidget.html#windowTitle-prop

This property holds the window title (caption).This property only makes sense for top-level widgets, such as windowsand dialogs. If no caption has been set, the title is based of the windowFilePath. If neither of these is set, then the title is an empty string.

so, just ask the QMainWindow you are using about the windowTitle().

shareedit

3down votefavorite

1

I have a simple QT application running on Win32 platform. I need to write a C++ program described as: the input is the windows handle of that QT application, which is already available, the output is the text name ( AKA caption ) of the application. I hope someone will show me the way to do this right. Thanks a lot. Smile

c++ qt winapi hook

shareedit

edited Jul 19 '10 at 4:27

asked Jul 19 '10 at 4:14

Victor

162

 

add a comment

2 Answers

activeoldestvotes

up vote1down vote

I don't know if I completely understand your question, but you could simply use the GetWindowTextfunction (part of the Windows API) to obtain the title of a window. You must of course pass a native window handle (HWND) to this function, QWidget::winID() is the Qt way to retrieve it.

shareedit

answered Jul 19 '10 at 6:24

Greg S

8,21122742

 

add a comment

up vote0down vote

http://doc.trolltech.com/4.6/qwidget.html#windowTitle-prop

This property holds the window title (caption).This property only makes sense for top-level widgets, such as windowsand dialogs. If no caption has been set, the title is based of the windowFilePath. If neither of these is set, then the title is an empty string.

so, just ask the QMainWindow you are using about the windowTitle().

shareedit