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* Mark WTSVirtualChannelOpen and WTSVirtualChannelOpenEx with WINPR_ATTR_MALLOC to enforce compiler checks for resource cleanup * Fix unused result warnings, use the result or cast to (void) where not requierd
* Mark WTSVirtualChannelOpen and WTSVirtualChannelOpenEx with WINPR_ATTR_MALLOC to enforce compiler checks for resource cleanup * Fix unused result warnings, use the result or cast to (void) where not requierd