Pull wglGetProcAdress from opengl32.dll runtime.

skaslev · Dec 14, 2017 · b65ad62 · b65ad62
1 parent c8aad29
commit b65ad62
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/gl3w_gen.py b/gl3w_gen.py
@@ -190,13 +190,15 @@ def write(f, s):
 #include <windows.h>
 
 static HMODULE libgl;
+static PROC (__stdcall *wgl_get_proc_address)(LPCSTR);
 
 static int open_libgl(void)
 {
 	libgl = LoadLibraryA("opengl32.dll");
 	if (!libgl)
 		return GL3W_ERROR_LIBRARY_OPEN;
 
+	*(void **)(&wgl_get_proc_address) = GetProcAddress(libgl, "wglGetProcAddress");
 	return GL3W_OK;
 }
 
@@ -209,7 +211,7 @@ def write(f, s):
 {
 	GL3WglProc res;
 
-	res = (GL3WglProc)wglGetProcAddress(proc);
+	res = (GL3WglProc)wgl_get_proc_address(proc);
 	if (!res)
 		res = (GL3WglProc)GetProcAddress(libgl, proc);
 	return res;