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Use run-time dynamic linking for AddDllDirectory and RemoveDllDirectory to support mingw-w64 build and Windows 7 with KB2533623.

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bruvzg 2017-12-06 14:29:01 +02:00 committed by Rémi Verschelde
parent ca439056a6
commit 69dca1722f
1 changed files with 12 additions and 5 deletions
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17
platform/windows/os_windows.cpp
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@ -1629,16 +1629,23 @@ void OS_Windows::_update_window_style(bool repaint) {
Error OS_Windows::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path) {
typedef DLL_DIRECTORY_COOKIE(WINAPI * PAddDllDirectory)(PCWSTR);
typedef BOOL(WINAPI * PRemoveDllDirectory)(DLL_DIRECTORY_COOKIE);
PAddDllDirectory add_dll_directory = (PAddDllDirectory)GetProcAddress(GetModuleHandle("kernel32.dll"), "AddDllDirectory");
PRemoveDllDirectory remove_dll_directory = (PRemoveDllDirectory)GetProcAddress(GetModuleHandle("kernel32.dll"), "RemoveDllDirectory");
bool has_dll_directory_api = ((add_dll_directory != NULL) && (remove_dll_directory != NULL));
DLL_DIRECTORY_COOKIE cookie;
if (p_also_set_library_path) {
cookie = AddDllDirectory(p_path.get_base_dir().c_str());
if (p_also_set_library_path && has_dll_directory_api) {
cookie = add_dll_directory(p_path.get_base_dir().c_str());
}
p_library_handle = (void *)LoadLibraryExW(p_path.c_str(), NULL, p_also_set_library_path ? LOAD_LIBRARY_SEARCH_DEFAULT_DIRS : 0);
p_library_handle = (void *)LoadLibraryExW(p_path.c_str(), NULL, (p_also_set_library_path && has_dll_directory_api) ? LOAD_LIBRARY_SEARCH_DEFAULT_DIRS : 0);
if (p_also_set_library_path) {
RemoveDllDirectory(cookie);
if (p_also_set_library_path && has_dll_directory_api) {
remove_dll_directory(cookie);
}
if (!p_library_handle) {