Fltk Button回電

Question

對於這個子窗口我創建了一個按鈕，但是當我點擊按鈕時什麼也沒有發生。一旦我點擊按鈕，我想退出子窗口，但我不知道該怎麼做。

void model(Fl_Widget *, void *) { 
    Fl_Window *head = new Fl_Window(400, 350, "Robot Model: "); 
    Fl_Input *input = new Fl_Input(200, 0, 100, 30, "Name: "); 
    Fl_Input *input1 = new Fl_Input(200, 40, 100, 30, "Part-Number: "); 
    Fl_Input *input2 = new Fl_Input(200, 80, 100, 30, "How much is the Weight: "); 
    Fl_Input *input3 = new Fl_Input(200, 120, 100, 30, "The Cost: "); 
    Fl_Input *input4 = new Fl_Input(200, 160, 100, 30, "Brief Description:   "); 
    Fl_Button *enter = new Fl_Button(150, 200, 100, 30, "Enter"); 
    head->show(); 
    } 

int main(){ 

Fl_Window *win = new Fl_Window(600, 500, "Robot Workshop"); 
Fl_Box *box = new Fl_Box(0, 10, 600, 100, "Welcome to Robot Workshop!"); 
box->box(FL_UP_BOX); 
box->labelsize(36); 
box->labelfont(FL_BOLD + FL_ITALIC); 
box->labeltype(FL_SHADOW_LABEL); 
Fl_Menu_Bar *menu = new Fl_Menu_Bar(0, 0, 600, 25); 
menu->add("Exit/Quit", FL_CTRL + 'v', Quit_CB); 
menu->add("Project Manager/Robot Part/Head", FL_CTRL + 'h', head); 
menu->add("Project Manager/Robot Part/Torso", FL_CTRL + 't', torso); 
menu->add("Project Manager/Robot Part/Arm", FL_CTRL + 'a', arm); 
menu->add("Project Manager/Robot Part/Battery", FL_CTRL + 'b', battery); 
menu->add("Project Manager/Robot Part/Locomotor", FL_CTRL + 'l', locomotor); 
menu->add("Project Manager/Robot Model" ,FL_CTRL + 'w', model); 
menu->add("Beloved Customer/Browse Catalog", FL_CTRL + 'z', catalog); 
menu->add("Beloved Customer/Part Pictures", FL_CTRL + 'v', pic); 
menu->add("Manual", FL_CTRL + 'm', manual_window); 

win->show(); 
return(Fl::run()); 

} 

Answer 1

如果你想要回調，你需要添加一個回調函數。見http://www.fltk.org/doc-1.3/common.html

void xyz_callback(Fl_Widget *w, void *data) { 
... 
} 

你可以通過任何你喜歡的數據並轉換回原來的類型。然後修改您的按鈕

button->callback(xyz_callback, &xyz_data);