Added methods for opening dynamic libraries to OS

2 files changed, 30 insertions, 0 deletions

diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
index f1a9ba5598..75dc2ef696 100644
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -1582,6 +1582,32 @@ bool OS_Windows::get_borderless_window() {
 	return video_mode.borderless_window;
 }
 
+Error open_dynamic_library(const String p_path, void* &p_library_handle) {
+	p_library_handle = (void *) LoadLibrary(p_path.utf8().get_data());
+	if (!p_library_handle) {
+		ERR_EXPLAIN("Can't open dynamic library: " + p_path + ". Error: " + String::num(GetLastError()));
+		ERR_FAIL_V(ERR_CANT_OPEN);
+	}
+	return OK;
+}
+
+Error close_dynamic_library(void* p_library_handle) {
+	if (!FreeLibrary((HMODULE) p_library_handle)) {
+		return FAILED;
+	}
+	return OK;
+}
+
+Error get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle) {
+	char *error;
+	p_symbol_handle = (void *) GetProcAddress((HMODULE) p_library_handle, p_name.utf8().get_data());
+	if (!p_symbol_handle) {
+		ERR_EXPLAIN("Can't resolve symbol " + p_name + ". Error: " + String::num(GetLastError()));
+		ERR_FAIL_V(ERR_CANT_RESOLVE);
+	}
+	return OK;
+}
+
 void OS_Windows::request_attention() {
 
 	FLASHWINFO info;
diff --git a/platform/windows/os_windows.h b/platform/windows/os_windows.h
index 25c3102ee6..ed197b7685 100644
--- a/platform/windows/os_windows.h
+++ b/platform/windows/os_windows.h
@@ -222,6 +222,10 @@ public:
 	virtual void set_borderless_window(int p_borderless);
 	virtual bool get_borderless_window();
 
+	virtual Error open_dynamic_library(const String p_path, void* &p_library_handle);
+	virtual Error close_dynamic_library(void* p_library_handle);
+	virtual Error get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle);
+
 	virtual MainLoop *get_main_loop() const;
 
 	virtual String get_name();