On 2013-12-18 14:35, asmwarrior wrote: > Hello, Python community. > > I have found a very strange problem about using the python scripts under > Python Windows command line prompt, to reproduce this issue, you can simply > do those steps: > > 1. start a Python command line prompt(this is usually to hit the Start > Menu->Python 2.7->Python(command line). > 2. > > type the following text, and hit Enter key. > > |import ctypes| > 3. > > type the following text, and hit Enter key. > > |ctypes.windll.user32.MessageBoxA(0, "Your text", "Your title", 1)| > 4. You will see a message box opened, but this message box window is not > activated. > 5. Use the mouse to click on the icon of the message box in task bar to > activate the message box > 6. Close the message box > 7. > > type the text again in the Python prompt shell > > |ctypes.windll.user32.MessageBoxA(0, "Your text", "Your title", 1)| > 8. Now, the message box is showed activated (the expected behavior) > > So, my question is, why the first message box(window) is not shown active? I > originally find this issue when I run a Python pretty printer under GDB > command line, because I want to use some python pretty printer to visual the > data, like this GDB cv::Mat python object issue when debugging a c++ program > <http://stackoverflow.com/questions/16227166/gdb-cvmat-python-object-issue-when-debugging-a-c-program>, > I need to show the OpenCV Image window immediately after I type the plot > command. > > But later I found that this is an issue related to Python itself. > > > Thanks. > > Yuanhui Zhang > > BTW: I post the same question in StackOverflow: > http://stackoverflow.com/questions/20614249/windowspython-why-is-the-first-opened-window-not-shown-active > > FYI:
I get the an answer in stackoverflow in the above link which solve my problem. (http://stackoverflow.com/a/20651708/154911) It looks like the Windows OS system block a console window to create/pop-up a window, so I need some opitons like: MB_SETFOREGROUNDWINDOW <http://msdn.microsoft.com/en-us/library/windows/desktop/ms645505%28v=vs.85%29.aspx> Thanks. Yuanhui Zhang
-- https://mail.python.org/mailman/listinfo/python-list
