vc6.0报错cannot convert from

This error message usually occurs when the compiler tries to convert one data type to another data type that is incompatible. Without knowing the specific code and data types involved, it's difficult to provide a precise solution.

Here are a few potential scenarios and solutions:

- If you're trying to convert a non-pointer data type to a pointer data type, you need to use the address-of operator "&" to obtain the memory address of the variable. For example:

  int x = 42;
  int* ptr = &x; // convert int to int*

- If you're trying to convert a pointer data type to a different pointer data type, you may need to use a type cast operator to explicitly specify the new data type. For example:

  char* str = "hello";
  void* ptr = (void*)str; // convert char* to void*

- If you're passing arguments to a function that don't match the expected data type, you may need to modify the function signature or the argument data types to match. For example:

  void foo(int x);
  float y = 3.14;
  foo(y); // error: cannot convert from float to int

You could modify the function to accept a float instead:

  void foo(float x);
  float y = 3.14;
  foo(y); // OK

Overall, the best approach is to carefully review your code and ensure that all data types are consistent and compatible. If you're still having trouble, consider posting a specific code example or seeking help from a more experienced developer.