First of all, four API functions, respectively, are deltetobject,createfontindirect,selectobject,textout. The descriptions of these functions are described separately.Deltetobjectfunction function: This function deletes a logical pen, brush, font,
In the development of VBA, in order to be able to use functions provided by the system or functions developed in C ++, This article summarizes the call of C ++ DLL by VBA.
1. function declaration
Function prototype:
Dword winapi
We know that clipcursor can restrict the pointer to a specified area, so how can we prevent the mouse from entering a certain area? The answer is to use the mouse hook, the wh_mouse_ll Hook can be used in Windows NT 4.0 SP3 and later systems. The
What is API
First, it is necessary to explain to you what APIs are. The so-called API was originally written for C and C ++ programmers. An API is a function that is included in a dynamic connection library file attached with a DLL name. In terms of
Today, let's take a look at how VB. NET embeds the program window into the taskbar, which is our implementation.
Before starting, Meng briefly introduced the composition of the taskbar. Here, Meng only introduced the components related to our
VB6.0 provides the command () interface to provide support for command line parameters. Therefore, all input parameters can be obtained through the command () function, but it is unfriendly, all the parameters of VB are combined and become a string.
'// Girl does not cry (QQ: 191035066) @ 22:03:37Option Explicit Private Type variablebufferVariableparameter () As Byte End Type Private Declare Function Loadlibrary Lib " Kernel32 " Alias " Loadlibrarya " ( Byval
Option explicitPrivate type internet_proxy_infoDwaccesstype as longLpszproxy as longLpszproxybypass as longEnd typePrivate const internet_option_proxy = 38Private declare function internetsetoption lib "wininet. dll" alias "internetsetoptiona"
GDI + is a major improvement of GDI. Its design philosophy and operation methods are essentially different from those of GDI, because of its excellent anti-tooth feature, many interface functions are favored by image and graphic programmers.
Programming Languages: Microsoft Visual Basic 4.0, 5.0, 6.0
Running platform: Windows
Function Description: IPX and NetBIOS interfaces require network addresses. This document demonstrates how to obtain the NIC address Through VB through detailed
Each program on taskbar has an item on it, and pressing this item will activate the corresponding program
In fact, these program items on taskbar use tab control, so if we can get taskbar
The hwnd of the tab control (release AB) on, we can delete
. Net program memory usage Problems
1. Use the Performance Testing Tool dottrace 3.0 to calculate that the code in your program occupies a large amount of memory.
2. Forced garbage collection
3. Multiple dispose and close
4. Call timer every several
You can use Excel to send emails at a high speed in two steps:
1. Prepare the data to be sent:
A.) Activate exceland create a new book1.xlsx.
B.) Fill in the following content,
First column: recipient, second column: Mail title, third column: body,
You can use Excel to send emails at a high speed in two steps:
1. Prepare the data to be sent:
A.) Activate exceland create a new book1.xlsx.
B.) Fill in the following content,
First column: recipient, second column: Mail title, third column: body,
1 generates standard EXE files in Visual Basic. Default Create Form1.
2 Add a command button to the FORM1, the default name is Command1.
3) Put the following code in the Form1 section of the description.
Option Explicit
Private Const Ncbastat = &
Create a new "Serv-u" FTP server, in the ASP to modify the specified account password, wrote an ASP component to modify the "Serv-u" ftp password.
Start "Vb6.0", select the new ActiveX DLL, change engineering properties in the project name
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