I for myself write Qt-5 wrapper. I use calls from Qt (C ++) as
extern (C) calls.
Prompt how to write this code well and with use of abilities to
integrate D and C ++
------------------
// ex4.d - Concepts of QAction.QtE5
// -------- compile ---------
// dmd ex4 qte5
import core.runtime;
import qte5; // wrapping Qt-5
// (1) handler receives the pointer on object of myQWidget.
// (2) and call method in class myQWidget
extern (C) void handler(myQWidget* wd) {
(*wd).kn1Press();
}
class myQWidget : QWidget {
this() {
// Create widget and set size
super(this); resize(200, 100);
// Create button for demo signal -- slot
// button generates to us a signal
auto kn1 = new QPushButton("Press me ...", this);
// Create QAction for processings of the slot
auto actSlot1 = new QAction(this, &handler, aThis);
// We connect a signal to slots standard means
connects(kn1, "clicked()", actSlot1, "Slot()");
}
// (2) to process clicking of the button
void kn1Press() {
msgbox("pressed key on the form");
}
}
int main(string[] args) {
// Load library QtE5
if (1 == LoadQt(dll.QtE5Widgets, true)) return 1;
// Create app
QApplication app = new QApplication(&Runtime.cArgs.argc,
Runtime.cArgs.argv, 1);
// (1) Create obj of myQWidget and to save this address in obj
myQWidget mywid = new myQWidget(); mywid.saveThis(&mywid).show;
app.exec();
return 0;
}
------------------
