yyc12345
3fa05b43d9
- use std::codevct as the convertion method among UTF8, UTF16 and UTF32. - fix the issue that COM Guard was accidently dropped by compiler because no reference to it.
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#include "COMHelper.hpp"
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#if YYCC_OS == YYCC_OS_WINDOWS
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namespace YYCC::COMHelper {
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/**
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* @brief The guard for initialize COM environment.
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* @details This class will try initializing COM environment by calling CoInitialize when constructing,
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* and it also will try uninitializing COM environment when destructing.
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* If initialization failed, uninitialization will not be executed.
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*/
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class ComGuard {
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public:
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ComGuard() : m_HasInit(false) {
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HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
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if (SUCCEEDED(hr)) m_HasInit = true;
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}
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~ComGuard() {
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if (m_HasInit) {
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CoUninitialize();
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}
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}
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bool IsInitialized() const {
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return m_HasInit;
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}
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protected:
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bool m_HasInit;
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};
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/**
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* @brief The instance of COM environment guard.
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* @details Dialog related function need COM environment,
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* so we need initializing COM environment when loading this module,
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* and uninitializing COM environment when we no longer use this module.
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* So we use a static instance in here.
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* And make it be const so no one can change it.
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*/
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static const ComGuard c_ComGuard {};
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bool IsInitialized() {
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return c_ComGuard.IsInitialized();
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}
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}
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#endif |