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[旧帖]
[求助]关于VB使用VC的DLL的问题,附源码.
0.00雪花
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发表于:
2012-4-29 00:24
920
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[旧帖] [求助]关于VB使用VC的DLL的问题,附源码.
0.00雪花
VC DLL的代码:
#include "windows.h"
extern "C" _declspec(dllexport) int EchoMsg(int a,int b)
{
return a + b;
}
VB EXE代码:
Private Declare Function EchoMsg Lib "MT345.dll" (a As Long, b As Long) As Long
Private Sub Command1_Click()
Dim num As Long
Dim X As Long, Y As Long
X = 3
Y = 5
num = EchoMsg(X, Y)
Text1.Text = num
End Sub
为什么Vb按下按钮之后,EchoMsg返回的值是2484692?
3+5应该等于8啊
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