AE安装检测（C++）
<div id="cnblogs_post_body">在MFC中使用AE(AO)进行二次开发时，当目标机器上若没有安装AE的Runtime，程序会直接挂掉。对此，通过在CXXApp的InitInstance()的起始处增加环境的检测代码，来友好地提示用户安装AE的Runtime。
代码如下：
<div class="cnblogs_code"> 1 BOOL CMap2DApp::InitInstance() 2 { 3 CoInitialize(NULL); 4 5 try 6 { 7 IAoInitializePtr ipAoInitialize(CLSID_AoInitialize); 8 if (ipAoInitialize==NULL) 9 {10 MessageBox(NULL,"请先安装ArcGIS Engine Runtime!","Map 2D",MB_OK|MB_ICONEXCLAMATION);11 CoUninitialize();12 return FALSE;13 }14 esriLicenseStatus licenseStatus;15 HRESULT hr = ipAoInitialize->Initialize(esriLicenseProductCodeEngine,&licenseStatus);16 17 if (licenseStatus!=esriLicenseCheckedOut)18 {19 MessageBox(NULL,"请先安装ArcGIS Engine Runtime!","Map 2D",MB_OK|MB_ICONEXCLAMATION);20 CoUninitialize();21 return FALSE;22 }23 }24 catch (...)25 {26 MessageBox(NULL,"请先安装ArcGIS Engine Runtime!","Map 2D",MB_OK|MB_ICONEXCLAMATION);27 CoUninitialize();28 return FALSE;29 }30 }
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