vb默认 byref vc 默认 byval stdcall方式不能传递浮点,变通方法传递浮点变量的指针. byte unsigned char integer short bool short long int single float double double //vc char *vb byval variable as String //vc指针的指针 vb any LPSTR * byref variable as String //Private Declare Function wpfnDllTest Lib "dllTest.dll" (w ) As Integer 等价于 byval w as Variant //Private Declare Function wpfnDllTest Lib "dllTest.dll" (w As Any) As Integer Any w是什么就传递什么,无类型匹配检查 |
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