diff options
Diffstat (limited to 'CPP/Common/MyWindows.cpp')
-rwxr-xr-x | CPP/Common/MyWindows.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/CPP/Common/MyWindows.cpp b/CPP/Common/MyWindows.cpp new file mode 100755 index 00000000..4cf065cf --- /dev/null +++ b/CPP/Common/MyWindows.cpp @@ -0,0 +1,113 @@ +// MyWindows.cpp + +#include "StdAfx.h" + +#ifndef _WIN32 + +#include "MyWindows.h" +#include "Types.h" +#include <malloc.h> + +static inline void *AllocateForBSTR(size_t cb) { return ::malloc(cb); } +static inline void FreeForBSTR(void *pv) { ::free(pv);} + +static UINT MyStringLen(const wchar_t *s) +{ + UINT i; + for (i = 0; s[i] != '\0'; i++); + return i; +} + +BSTR SysAllocStringByteLen(LPCSTR psz, UINT len) +{ + int realLen = len + sizeof(UINT) + sizeof(OLECHAR) + sizeof(OLECHAR); + void *p = AllocateForBSTR(realLen); + if (p == 0) + return 0; + *(UINT *)p = len; + BSTR bstr = (BSTR)((UINT *)p + 1); + memmove(bstr, psz, len); + Byte *pb = ((Byte *)bstr) + len; + for (int i = 0; i < sizeof(OLECHAR) * 2; i++) + pb[i] = 0; + return bstr; +} + +BSTR SysAllocString(const OLECHAR *sz) +{ + if (sz == 0) + return 0; + UINT strLen = MyStringLen(sz); + UINT len = (strLen + 1) * sizeof(OLECHAR); + void *p = AllocateForBSTR(len + sizeof(UINT)); + if (p == 0) + return 0; + *(UINT *)p = strLen; + BSTR bstr = (BSTR)((UINT *)p + 1); + memmove(bstr, sz, len); + return bstr; +} + +void SysFreeString(BSTR bstr) +{ + if (bstr != 0) + FreeForBSTR((UINT *)bstr - 1); +} + +UINT SysStringByteLen(BSTR bstr) +{ + if (bstr == 0) + return 0; + return *((UINT *)bstr - 1); +} + +UINT SysStringLen(BSTR bstr) +{ + return SysStringByteLen(bstr) / sizeof(OLECHAR); +} + +HRESULT VariantClear(VARIANTARG *prop) +{ + if (prop->vt == VT_BSTR) + SysFreeString(prop->bstrVal); + prop->vt = VT_EMPTY; + return S_OK; +} + +HRESULT VariantCopy(VARIANTARG *dest, VARIANTARG *src) +{ + HRESULT res = ::VariantClear(dest); + if (res != S_OK) + return res; + if (src->vt == VT_BSTR) + { + dest->bstrVal = SysAllocStringByteLen((LPCSTR)src->bstrVal, + SysStringByteLen(src->bstrVal)); + if (dest->bstrVal == 0) + return E_OUTOFMEMORY; + dest->vt = VT_BSTR; + } + else + *dest = *src; + return S_OK; +} + +LONG CompareFileTime(const FILETIME* ft1, const FILETIME* ft2) +{ + if(ft1->dwHighDateTime < ft2->dwHighDateTime) + return -1; + if(ft1->dwHighDateTime > ft2->dwHighDateTime) + return 1; + if(ft1->dwLowDateTime < ft2->dwLowDateTime) + return -1; + if(ft1->dwLowDateTime > ft2->dwLowDateTime) + return 1; + return 0; +} + +DWORD GetLastError() +{ + return 0; +} + +#endif |