VB调用windowsAPI的一些总结_vb使用printwindow api

1.读取文件数据
Private Declare Function ReadFile Lib "kernel32 " (ByVal hFile As Long, lpBuffer As Any, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, ByVal lpOverlapped As Any) As Long
2.取得系统时间
Private Declare Sub GetSystemTime Lib "kernel32" (lpSystemTime As SYSTEMTIME)
3.取得特殊文件夹路径
Private Declare Function SHGetSpecialFolderLocation Lib "Shell32" (ByVal hwndOwner As Long, ByVal nFolder As Integer, ppidl As Long) As Long
4.
Private Declare Function SHGetPathFromIDList Lib "Shell32" Alias "SHGetPathFromIDListA" (ByVal pIdl As Long, ByVal szPath As String) As Long
5.取得windows目录
Private Declare Function GetWindowsDirectory Lib "kernel32" Alias "GetWindowsDirectoryA" (ByVal lpBuffer As String, ByVal nSize As Long) As Long
6.取得系统目录
Private Declare Function GetSystemDirectory Lib "kernel32" Alias "GetSystemDirectoryA" (ByVal lpBuffer As String, ByVal nSize As Long) As Long
7.取得临时文件夹的路径
Private Declare Function GetTempPath Lib "kernel32" Alias "GetTempPathA" (ByVal nBufferLength As Long, ByVal lpBuffer As String) As Long
8.打开文件
Private Declare Function OpenFile Lib "kernel32" (ByVal lpFileName As String, lpReOpenBuff As OFSTRUCT, ByVal wStyle As Long) As Long
9.取得文件大小
Private Declare Function GetFileSizeEx Lib "kernel32" (ByVal hFile As Long, lpFileSize As Currency) As Boolean
10.关闭句柄
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
11.取得用户名
Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
12.取得时间返回long型
Private Declare Function timeGetTime Lib "winmm.dll" () As Long
13.取得驱动器类型
Private Declare Function GetDriveType Lib "kernel32" Alias "GetDriveTypeA" (ByVal nDrive As String) As Long
14.取得系统图标时使用
Private Declare Function ImageList_Draw Lib "comctl32.dll" (ByVal himl&, ByVal i&, ByVal hDCDest&, ByVal x&, ByVal y&, ByVal flags&) As Long
15.显示滚动条
Private Declare Function ShowScrollBar Lib "user32" (ByVal hwnd As Long, ByVal wBar As Long, ByVal bShow As Long) As Long
16.设置读取文件数据的Index
Private Declare Function SetFilePointer Lib "kernel32 " (ByVal hFile As Long, ByVal lDistanceToMove As Long, lpDistanceToMoveHigh As Long, ByVal dwMoveMethod As Long) As Long
17.取得磁盘剩余空间
Private Declare Function GetDiskFreeSpace Lib "kernel32" Alias "GetDiskFreeSpaceA" (ByVal lpRootPathName As String, lpSectorsPerCluster As Long, lpBytesPerSector As Long, lpNumberOfFreeClusters As Long, lpTtoalNumberOfClusters As Long) As Long