等待按键 - WaitKey

函数简介

等待指定的按键按下（前台，不是后台）。

接口名称

WaitKey

DLL调用

int WaitKey(long ola, int vk_code, int time_out);

参数说明

参数名	类型	说明
ola	长整数型	OLAPlug对象的指针，由 CreateCOLAPlugInterFace 接口生成。
vk_code	整数型	等待的按键码。
time_out	整数型	等待超时时间，单位毫秒。

示例

SDK 调用

#include "OLAPlugServer.h"

OLAPlugServer ola;
int ret = ola.WaitKey(0, 0);

using OLAPlug;

var ola = new OLAPlugServer();
int ret = ola.WaitKey(0, 0);

from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
ret = ola.WaitKey(0, 0)

import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
int ret = ola.WaitKey(0, 0);

var ola = com("OlaPlug.OlaSoft")
var ret = ola.WaitKey(0, 0)

Set ola = CreateObject("OlaPlug.OlaSoft")
ret = ola.WaitKey(0, 0)

.局部变量 ola, OLAPlug
ola.创建 ()
ret ＝ ola.WaitKey(0, 0)

import OLAPlugServer;
var ola = OLAPlugServer();
var ret = ola.WaitKey(0, 0);

变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
整数 ret = ola.WaitKey(0, 0)

#include "OLAPlugServer.h"

OLAPlugServer ola;
int32_t ret = ola.WaitKey(0, 0);

原生 DLL 调用

long instance = CreateCOLAPlugInterFace();
WaitKey(instance, 0, 0);

using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int WaitKey(long ola, int vk_code, int time_out);

long instance = CreateCOLAPlugInterFace();
WaitKey(instance, 0, 0);

from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
instance = ola.CreateCOLAPlugInterFace()
ola.WaitKey(instance, 0, 0)

返回值

• 1：指定的按键按下。
• 0：超时。