GuiLock
This package demonstrates the use of Ctrl::Lock in MT applications
main.cpp
#include <CtrlLib/CtrlLib.h>
using namespace Upp;
struct App : TopWindow {
Thread work;
ArrayCtrl list;
typedef App CLASSNAME;
App();
~App();
};
App::App()
{
list.AddColumn("Test");
Add(list.SizePos());
work.Run([=] {
for(;;) {
Sleep(1);
GuiLock __; // After locking GuiLock __, access is allowed to GUI object except opening/closing windows
if(IsShutdownThreads())
break;
if(list.GetCount() > 100) {
bool quit;
Ptr<Ctrl> p = this;
Call([=, &quit] {
if(p) // check whether App still exists (e.g. can be closed by close button)
quit = PromptYesNo("Quit?");
});
// quit = PromptYesNo("Quit?"); // (but Prompt has this ability already implemented, so direct call would work too)
if(quit) {
Break();
return;
}
list.Clear();
}
list.Add((int64)Random());
}
});
}
App::~App()
{
ShutdownThreads();
}
GUI_APP_MAIN
{
App app;
app.Run();
}
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