proe的API是针对VB使用的吗？
答案:3 悬赏:10 手机版
解决时间 2021-03-07 05:12
- 提问者网友：杀生予夺
- 2021-03-06 15:20
proe的API是针对VB使用的吗？
最佳答案
- 五星知识达人网友：行路难
- 2021-03-06 15:29
原形声明错了, dw是32位的int:
Imports System
Imports System.Windows.Forms
Module Tester
Declare Function Beep Lib "kernel32" (ByVal dwFreq As Int32, ByVal dwDuration As Int32) As Int32
WithEvents button As Button
Sub Main()
Dim form As New Form
button = New Button
button.Text = "Beep"
form.Controls.Add(button)
Application.Run(form)
End Sub
Sub button_Click(ByVal sender As Object, ByVal e As EventArgs) _
Handles button.Click
Beep(100, 100)
End Sub
End Module
Imports System
Imports System.Windows.Forms
Module Tester
Declare Function Beep Lib "kernel32" (ByVal dwFreq As Int32, ByVal dwDuration As Int32) As Int32
WithEvents button As Button
Sub Main()
Dim form As New Form
button = New Button
button.Text = "Beep"
form.Controls.Add(button)
Application.Run(form)
End Sub
Sub button_Click(ByVal sender As Object, ByVal e As EventArgs) _
Handles button.Click
Beep(100, 100)
End Sub
End Module
全部回答
- 1楼网友：躲不过心动
- 2021-03-06 17:13
not only.
- 2楼网友：不想翻身的咸鱼
- 2021-03-06 16:37
你好！
这个问题我也碰到过，后来解决了
希望对你有所帮助，望采纳。
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