014-imGui窗口中列表框ListBox
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VS2017+win10 64位 环境
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学习目标:
imGui窗口中列表框ListBox
BeginListBox
EndListBox
窗口中列表框控件接口
IMGUI_API bool BeginListBox(
const char* label,
// open a framed scrolling region
const ImVec2& size = ImVec2(0, 0));
// only call EndListBox() if BeginListBox() returned true!
IMGUI_API void EndListBox();
//简单 常用
IMGUI_API bool ListBox(
const char* label,
int* current_item,
const char* const items[],
int items_count, int height_in_items = -1);
//此接口暂时不了解
IMGUI_API bool ListBox(const char* label,
int* current_item,
bool (*items_getter)(void* data, int idx, const char** out_text),
void* data,
int items_count,
int height_in_items = -1);
void testListBox()
{
ImGui::Begin("testListBox");
// Using the _simplified_ one-liner ListBox() api here
// See "List boxes" section for examples of how to use the more flexible BeginListBox()/EndListBox() api.
// IMGUI_DEMO_MARKER("Widgets/Basic/ListBox");
const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
static int item_current = 1;
ImGui::Text(u8"ListBox示例");
ImGui::SameLine(); HelpMarker(
"Using the simplified one-liner ListBox API here.\nRefer to the \"List boxes\" \
section below for an explanation of how to use the more flexible and general BeginListBox/EndListBox API.");
ImGui::ListBox("##listbox", &item_current, items, IM_ARRAYSIZE(items), 4);
ImGui::End();
}
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