我正在尝试将char*
转换为BSTR*
,而我的char*
中的特殊字符不会被加密。我已经尝试了在网络上找到的几种方法,但是在调用vb代码中,我总是会遇到不同的东西。我很确定这与特殊字符有关,因为如果我没有它们,它似乎没问题......
我的代码就是这些......
_export myFunction(BSTR *VBtextin, BSTR *VBpassword, BSTR *VBtextout, FPINT encrypt) {
BSTR password = SysAllocString (*VBpassword);
char* myChar;
myChar = (char*) password //is this ok to cast? it seems to remain the same when i print out.
//then I encrypt the myChar in some function...and want to convert back to BSTR
//i've tried a few ways like below, and some other ways i've seen online...to no avail.
_bstr_t temp(myChar);
SysReAllocString(VBtextout, myChar);
任何帮助都将非常感谢!!!
感谢!!!!
答案 0 :(得分:0)
如果您正在操作缓冲区,则可能不希望直接操作char *
。首先复制一份:
_export myFunction(BSTR *VBtextin, BSTR *VBpassword, BSTR *VBtextout, FPINT encrypt) {
UINT length = SysStringLen(*VBpassword) + 1;
char* my_char = new char[length];
HRESULT hr = StringCchCopy(my_char, length, *VBpassword);
如果一切顺利,请执行转换。同时确保处理失败。
if (SUCCEEDED(hr)) {
// Perform transformations...
}
然后复印一份:
*VBtextout = SysAllocString(my_char);
delete [] my_char;
}