On 10/11/11 5:35 AM, Ed Leafe wrote: > On Oct 11, 2011, at 1:24 AM, Adam wrote: > >> I'm a beginner to Dabo and programming in general, so I have no idea >> what's happening here. Basically, I have a window displaying a dBitmap >> control on the left to be manipulated, and some controls on the right. >> This screenshot shows the state of the window before pressing the "Run" >> button, as well as the code that is executed upon hitting the button: >> >> http://img198.imageshack.us/img198/2914/beforeix.png >> >> At this point the only effect of the button should be to track whether >> it is 'running' or 'paused,' and to change the caption of the button to >> reflect this toggling between states. >> >> The toggling behavior works, but with an undesired side effect of >> erasing most of the bitmap: >> >> http://img59.imageshack.us/img59/7015/afters.png >> >> Attempting to refresh() or redraw() the dBitmap after the button press >> has no effect. I notice that the bitmap below the button remains >> visible, so I imagine this is a clue. bringToFront() or sendToBack() >> don't make any difference. >> >> Any idea what's causing this, if there's a simple fix, or will I have to >> rebuild the bitmap every time this happens? > > First off, can you post your system info? From any Dabo app, go to the > Help/About menu, and the dialog that appears will have a button that will > copy the info to the clipboard, where you can paste it in your reply. > > Second, how are you creating the dBitmap? I just tried running a Class > Designer session, and noticed that dBitmap isn't very well supported: the > Picture property isn't exposed! I think that's because normally a dImage > control is used for displaying images, whether they are BMPs, JPGs, or > whatever.
I remember having trouble with dBitmap on Linux: something about the way Gtk caches the bytes resulted in one image overwriting another. However, I thought we worked around it. I'll try to search for the relevant messages/commits. Paul _______________________________________________ Post Messages to: Dabo-users@leafe.com Subscription Maintenance: http://leafe.com/mailman/listinfo/dabo-users Searchable Archives: http://leafe.com/archives/search/dabo-users This message: http://leafe.com/archives/byMID/4e9471a6.1050...@ulmcnett.com
