用C API在Notes中实现进度条
在Notes 的C/S 编程中,经常需要对一个集合中的对象进行遍历处理,这时如果能显示一个进度条指示当前处理进程,就比较直观形象,客户界面也比较友好。
1、声明API函数
'声明API函数
Declare Function NEMProgressBegin Lib "nnotesws.dll"
( Byval wFlags As Integer ) As Long
Declare Sub NEMProgressEnd Lib "nnotesws.dll"
( Byval hwnd As Long )
Declare Sub NEMProgressSetBarPos Lib "nnotesws.dll"
( Byval hwnd As Long, Byval dwPos As Long)
Declare Sub NEMProgressSetBarRange Lib "nnotesws.dll"
( Byval hwnd As Long, Byval dwMax As Long )
Declare Sub NEMProgressSetText Lib "nnotesws.dll"
( Byval hwnd As Long, Byval pcszLine1 As String,
Byval pcszLine2 As String )
2、首先是自定义一个类 ProgressBar 。这样以后的调用比较方便。
'定义 ProgressBar 类
Class ProgressBar
Private hwnd As Long
' 构造类
Sub New (BarRange As Long)
On Error Goto ErrorHandler
' 创建进度条
Me.hwnd = NEMProgressBegin (NPB_TWOLINE)&n
相关文档:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <malloc.h>
#define f(a,b) a##b
#define g(a) #a
#define h(a) g(a)
int main()
{
char a = 'a';
......
C/C++/VC++ 变量命名规则
是VC++的么?
4.变量风格
变量尽量采用匈牙利命名法,同时结合VC的原则;一般情况下,变量的取名方式为:
<scope><prefix><qualifier>
有关项目的全局变量必须用g_开始,类成员变量用m_,局部变量若函数较大则可考虑用l_用以显示说明其是局部变量。
前缀
类型
示例
g_
......
链表定义及操作的源文件:employee.h
//
#pragma once
#ifndef __EMPLOYEE_H__
#define __EMPLOYEE_H__
#include<stdio.h>
#include<malloc.h>
typedef struct employee{
int id;
int age;
int salary;
}EmpType;
typedef struct Node{
EmpType data;
struct Node *next;
}L ......
//linux下编译g++ $(mysql_config --cflags) ***.cpp $(mysql_config --libs)
/*mysql数据库中表的内容
mysql> select * from maindb;
+------------------+---------+-------------+---------+----------+---------------------+---------------------+---------------------+------------------- ......