DCs and Crosshair

wxPython Users
1

When I first wrote this program three or four years ago, it worked just fine. Now that I’ve upgraded to wxPython 3.0, (and possibly an earlier version), the DC.CrossHair method doesn’t seem to be working.

In the attached sample, I’m using a MemoryDC and a ClientDC to trace the mouse movement and read pixel data.

When I revisited this code, the crosshairs don’t show up.

Windows 7, python 2.7.8, wxPython 3.0.1.1.

Any ideas? Has the API Changed?

Josh

crosshairtest.py (2.38 KB)

2

Josh English wrote:

When I first wrote this program three or four years ago, it worked just
fine. Now that I've upgraded to wxPython 3.0, (and possibly an earlier
version), the DC.CrossHair method doesn't seem to be working.

In the attached sample, I'm using a MemoryDC and a ClientDC to trace the
mouse movement and read pixel data.

When I revisited this code, the crosshairs don't show up.

Windows 7, python 2.7.8, wxPython 3.0.1.1.

Any ideas? Has the API Changed?

I don't know what is going on with CrossHair on MSW, (it still works on OSX at least.) However replacing the call to CrossHair with 2 calls to DrawLines is simple enough.

···

--
Robin Dunn
Software Craftsman

3

That is eventually what I did.

Thanks,

Josh

···

On Mon, Oct 13, 2014 at 5:17 PM, Robin Dunn <robin@alldunn.com> wrote:

Josh English wrote:

When I first wrote this program three or four years ago, it worked just
fine. Now that I've upgraded to wxPython 3.0, (and possibly an earlier
version), the DC.CrossHair method doesn't seem to be working.

In the attached sample, I'm using a MemoryDC and a ClientDC to trace the
mouse movement and read pixel data.

When I revisited this code, the crosshairs don't show up.

Windows 7, python 2.7.8, wxPython 3.0.1.1.

Any ideas? Has the API Changed?

I don't know what is going on with CrossHair on MSW, (it still works on OSX
at least.) However replacing the call to CrossHair with 2 calls to
DrawLines is simple enough.

--
Robin Dunn
Software Craftsman
http://wxPython.org

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Josh English
Joshua.R.English@gmail.com
http://www.joshuarenglish.com