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Check for null help URL

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This commit is contained in:
Cameron Gutman 2019-01-04 23:06:37 -08:00
parent 3c92a79fe2
commit 106960cbb5
1 changed files with 4 additions and 0 deletions
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4
mist/mist.cpp
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@ -56,6 +56,10 @@ VOID CALLBACK MsgBoxHelpCallback(LPHELPINFO lpHelpInfo)
{ {
const char* helpUrl = (const char*)lpHelpInfo->dwContextId; const char* helpUrl = (const char*)lpHelpInfo->dwContextId;
if (!helpUrl) {
return;
}
// It's recommended to initialize COM before calling ShellExecute() // It's recommended to initialize COM before calling ShellExecute()
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE); CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
ShellExecuteA(nullptr, "open", helpUrl, nullptr, nullptr, SW_SHOWNORMAL); ShellExecuteA(nullptr, "open", helpUrl, nullptr, nullptr, SW_SHOWNORMAL);