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上一篇文章談到了多窗體，還是依照約定看一下效果是什麽樣的。

假設大家細心一點。就會發現窗體中的label顯示為window01，這事實上是由於我們已經添加了一個窗體，有興趣的朋友能夠嘗試編譯一下。如題所看到的，今天討論的是combox。所謂的combox，事實上就是從給出的若幹個選擇挑選出一個就可以。

閑話少說，還是看代碼。

#include "ftk.h"

#define IDC_TEST_BUTTON 1000
static Ret button_quit_clicked(void* ctx, void* obj)
{
	ftk_quit();

	return RET_OK;
}

int FTK_MAIN(int argc, char* argv[])
{
	int width = 0;
	int height = 0;
	FtkWidget* win = NULL;
	FtkWidget* button = NULL;
	FtkWidget* combo_box = NULL;

	ftk_init(argc, argv);
	
	win = ftk_app_window_create();
	width = ftk_widget_width(win);
	height = ftk_widget_height(win);
	
	width = width/2 - 10;
	combo_box = ftk_combo_box_create(win, 0, height/4, width, 50);
	ftk_combo_box_set_text(combo_box, "1 second");
	ftk_combo_box_append(combo_box, NULL, "1 second");
	ftk_combo_box_append(combo_box, NULL, "2 seconds");
	ftk_combo_box_append(combo_box, NULL, "3 seconds");
	combo_box = ftk_combo_box_create(win, width + 10, height/4, width, 50);
	ftk_combo_box_set_text(combo_box, "1 second");
	ftk_combo_box_append(combo_box, NULL, "1 second");
	ftk_combo_box_append(combo_box, NULL, "2 seconds");
	ftk_combo_box_append(combo_box, NULL, "3 seconds");
	ftk_combo_box_append(combo_box, NULL, "4 seconds");
	ftk_combo_box_append(combo_box, NULL, "5 seconds");
	ftk_combo_box_append(combo_box, NULL, "6 seconds");
	ftk_combo_box_append(combo_box, NULL, "7 seconds");
	ftk_combo_box_append(combo_box, NULL, "8 seconds");
	ftk_combo_box_append(combo_box, NULL, "9 seconds");
	ftk_combo_box_append(combo_box, NULL, "0 seconds");
	ftk_combo_box_append(combo_box, NULL, "0 seconds");

	button = ftk_button_create(win, width/2, height/2, width, 60);
	ftk_widget_set_text(button, "quit");
	ftk_button_set_clicked_listener(button, button_quit_clicked, win);
	ftk_window_set_focus(win, button);

	combo_box = ftk_combo_box_create(win, 0, 3*height/4+5, width, 50);
	ftk_combo_box_set_text(combo_box, "1 second");
	ftk_combo_box_append(combo_box, NULL, "1 second");
	ftk_combo_box_append(combo_box, NULL, "2 seconds");
	ftk_combo_box_append(combo_box, NULL, "3 seconds");
	combo_box = ftk_combo_box_create(win, width + 10, 3*height/4+5, width, 50);
	ftk_combo_box_set_text(combo_box, "1 second");
	ftk_combo_box_append(combo_box, NULL, "1 second");
	ftk_combo_box_append(combo_box, NULL, "2 seconds");
	ftk_combo_box_append(combo_box, NULL, "3 seconds");
	ftk_combo_box_append(combo_box, NULL, "4 seconds");
	ftk_combo_box_append(combo_box, NULL, "5 seconds");
	ftk_combo_box_append(combo_box, NULL, "6 seconds");
	ftk_combo_box_append(combo_box, NULL, "7 seconds");
	ftk_combo_box_append(combo_box, NULL, "8 seconds");
	ftk_combo_box_append(combo_box, NULL, "9 seconds");
	ftk_combo_box_append(combo_box, NULL, "0 seconds");
	ftk_combo_box_append(combo_box, NULL, "0 seconds");
	
	ftk_widget_set_text(win, "ComboBox Demo");
	ftk_widget_show_all(win, 1);
	ftk_widget_set_attr(win, FTK_ATTR_QUIT_WHEN_CLOSE);

	ftk_run();

	return 0;
}

相信大家看了上面的代碼就不操心了。假設想創建combox，直接調用函數ftk_combo_box_create就可以；假設須要加入條目，調用函數ftk_combo_box_append就可以；假設須要設定默認選項，調用ftk_combo_box_set_text函數就可以。就是這麽簡單。

下次看效果圖。

ftk學習記（combox篇）