Signed-off-by: Yan-Jie Wang <[email protected]>
---
mingw-w64-headers/include/comutil.h | 55 +++++++++++++++++++++++++++--
1 file changed, 53 insertions(+), 2 deletions(-)
diff --git a/mingw-w64-headers/include/comutil.h
b/mingw-w64-headers/include/comutil.h
index ddb090637..dacbf154e 100644
--- a/mingw-w64-headers/include/comutil.h
+++ b/mingw-w64-headers/include/comutil.h
@@ -6,6 +6,9 @@
#ifndef _INC_COMUTIL
#define _INC_COMUTIL
+#include <winerror.h>
+#include <stringapiset.h>
+#include <errhandlingapi.h>
#include <ole2.h>
#include <stdio.h>
@@ -51,8 +54,56 @@ namespace _com_util {
}
namespace _com_util {
- BSTR WINAPI ConvertStringToBSTR(const char *pSrc);
- char *WINAPI ConvertBSTRToString(BSTR pSrc);
+ BSTR WINAPI ConvertStringToBSTR(const char *pSrc){
+ int wcSize;
+ BSTR bstr;
+ if(!pSrc) return NULL;
+ wcSize=::MultiByteToWideChar(CP_ACP,0,pSrc,-1,NULL,0);
+ if (wcSize==0) {
+ _com_issue_error(HRESULT_FROM_WIN32(GetLastError()));
+ return NULL;
+ }
+ bstr=::SysAllocStringLen(NULL,wcSize-1);
+ if(!bstr) {
+ _com_issue_error(E_OUTOFMEMORY);
+ return NULL;
+ }
+ if(::MultiByteToWideChar(CP_ACP,0,pSrc,-1,bstr,wcSize)==0) {
+ ::SysFreeString(bstr);
+ _com_issue_error(HRESULT_FROM_WIN32(::GetLastError()));
+ return NULL;
+ }
+ return bstr;
+ }
+ char *WINAPI ConvertBSTRToString(BSTR pSrc){
+ int mbSize;
+ char *str;
+ if(!pSrc) return NULL;
+ mbSize = ::WideCharToMultiByte(CP_ACP,0,pSrc,-1,NULL,0,NULL,NULL);
+ if (mbSize==0) {
+ _com_issue_error(HRESULT_FROM_WIN32(::GetLastError()));
+ return NULL;
+ }
+#if __EXCEPTIONS
+ try {
+#endif
+ str=(char *)::operator new[](mbSize);
+#if __EXCEPTIONS
+ } catch (...) {
+ str=NULL;
+ }
+#endif
+ if(!str) {
+ _com_issue_error(E_OUTOFMEMORY);
+ return NULL;
+ }
+ if(::WideCharToMultiByte(CP_ACP,0,pSrc,-1,str,mbSize,NULL,NULL)==0) {
+ ::operator delete[](str);
+ _com_issue_error(HRESULT_FROM_WIN32(::GetLastError()));
+ return NULL;
+ }
+ return str;
+ }
}
class _bstr_t {
--
2.49.0.windows.1
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