wxWidgets Discussion Forum

You should never optimize a program without first profiling it. Without knowing where it is slow, you can spend too much time optimizing the wrong parts. And you should never optimize a program until users complain it's too slow. Instead, write the program to be easily understood. A professional pro...

I don't care which class to use as long I get the desired layout in the picture Both will look the same but behave differently. A wxSplitterWindow will divide a parent window into two subwindows with a control between them. When one grows, the other shrinks. wxSashWindow place controls on any or al...

Do you want to use wxSashWindow or wxSplitterWindow? The are completely different from each other. Most of the time, people would want wxSplitterWindow.

Hi, I use{d} wxGlade, but now I'm more or less can write simple layout by hand. Thank you. P.S.: I don't want to be kicked out for starting a flame war... P.S.: I don't want to be kicked out for starting a flame war... Too late :mrgreen: PS: I often go by hand too (as you said: when the layout is r...

The Document/View Framework was created to separate documents from views, although some might think it is overkill for a single list.

ONEEYEMAN wrote:C++ does not support conditional inclusion f the headers.

No but it has conditional compiling which works with `#includes. See https://gcc.gnu.org/onlinedocs/cpp/Ifdef.html

Your progam has to have root privileges to set the date & time. You may have to use the system function stime.

OK, after some heavy thinking, this seems to work: void vwClock::UpdateDisplay ( int hr, int min, int sec, bool force ){ wxMemoryDC dc; // change hour-minute face when new minute if( sec == 0 || force ){ int hour_index = ( hr * 5 + min / 12 ) % 60; dc.SelectObject( m_hr_min_face ); dc.SetBackground(...

The bitmaps have to have an alpha channel. If they didn't, there would be only one hand, not a bunch drawn over top of each other. So, you're saying I should use wxMemoryDC to store the composite images? Rotated bitmaps look ugly. That's why I have 60 rendered PNGs for each hand. And there are 3 han...

I'm trying to build a simple analog clock using PNG files for the hands. The problem I have is I cannot get wxImage to paste the layers together. It seems to use only the last wxImage, that of the second hand and reuses it each time. See attached Screenshot-sysmon.png The only thing I found close to...

doublemax wrote:wxWidgets 3.1 and 2.8.12 are very different and not compatible

That could be a problem. I'm not sure my OS can handle an incompatible library.

T-Rex wrote:You probably forgot to install wxWidgets on your system.

Nope.

I have cloned this repository: https://github.com/wxWidgets/wxWidgets/tree/master/samples/docview and compiled it: $ ./configure # lots of output $ make # more output, some warnings but compiled $ I then tried: $ ./utils/wxrc/wxrc ./utils/wxrc/wxrc: error while loading shared libraries: libwx_baseu_...

Permanent widgets should be allocated with `new`. Temporary ones can be allocated on the stack. Actually there are only two types of objects that can be created on the stack under certain circumstances: Modal dialogs and popup menus. What about wxString? There are a number of "widgets" th...

Those are allocated on the stack. If the allocation has the keyword `new`, it is allocated on the heap and must be explicitly freed. Otherwise, it is allocated on the stack and will be freed when the function returns. If I'm not mistaken, all that widgets were allocated using the keyword new , whic...