使用API调用Winodws各种通用对话框(Common Diaglog)的方法

最新推荐文章于 2020-05-17 13:02:45 发布

brave1

最新推荐文章于 2020-05-17 13:02:45 发布

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分类专栏： VB 文章标签： api string function integer shell subroutine

本文链接：https://blog.youkuaiyun.com/brave1/article/details/395651

本文介绍了如何使用API调用Windows的各种通用对话框，包括文件属性、关于对话框、捕获打印机端口、颜色对话框、复制磁盘和格式化软盘等，并提供了详细的示例代码。

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使用API调用Winodws各种通用对话框(Common Diaglog)的方法（一）

1.文件属性对话框
Type SHELLEXECUTEINFO
cbSize As Long
fMask As Long
hwnd As Long
lpVerb As String
lpFile As String
lpParameters As String
lpDirectory As String
nShow As Long
hInstApp As Long
lpIDList As Long '可选参数
lpClass As String '可选参数
hkeyClass As Long '可选参数
dwHotKey As Long '可选参数
hIcon As Long '可选参数
hProcess As Long '可选参数
End Type

Const SEE_MASK_INVOKEIDLIST = &HC
Const SEE_MASK_NOCLOSEPROCESS = &H40
Const SEE_MASK_FLAG_NO_UI = &H400

Declare Function ShellExecuteEX Lib "shell32.dll" Alias "ShellExecuteEx" _
(SEI As SHELLEXECUTEINFO) As Long
Public Function ShowProperties(filename As String, OwnerhWnd As Long) As Long
'打开指定文件的属性对话框,如果返回值<=32则出错
Dim SEI As SHELLEXECUTEINFO
Dim r As Long
With SEI
.cbSize = Len(SEI)
.fMask = SEE_MASK_NOCLOSEPROCESS Or SEE_MASK_INVOKEIDLIST Or SEE_MASK_FLAG_NO_UI
.hwnd = OwnerhWnd
.lpVerb = "properties"
.lpFile = filename
.lpParameters = vbNullChar
.lpDirectory = vbNullChar
.nShow = 0
.hInstApp = 0
.lpIDList = 0
End With
r = ShellExecuteEX(SEI)
ShowProperties = SEI.hInstApp
End Function

新建一个工程,添加一个按钮和名为Text1的文本框
把以下代码置入CommandbButton_Click 中
Dim r As Long
Dim fname As String
'从Text1 中获取文件名及路径
fname = (Text1)
r = ShowProperties(fname, Me.hwnd)
If r <= 32 Then MsgBox "Error"

2.使用Win95的关于对话框
Private Declare Function ShellAbout Lib "shell32.dll" _
Alias "ShellAboutA" (ByVal hwnd As Long, ByVal szApp As String, _
ByVal szOtherStuff As String, ByVal hIcon As Long) As Long
示例:
Dim x As Long
x = shellabout (Form1.hwnd, "Visual Basic 6.0", _
"Alp Studio MouseTracker Ver 1.0", Form1.icon)

2.调用"捕获打印机端口"对话框
Private Declare Function WNetConnectionDialog Lib "mpr.dll" _
(ByVal hwnd As