![requires opengl 4.1 requires opengl 4.1](https://selfieearth789.weebly.com/uploads/1/2/4/7/124736699/329147282.jpg)
bufsize is the size of the buffer where message will be loaded, and the pointer to the buffer is sent as the last parameter - messageLog. The first parameter count is the number of entries we want to read.
![requires opengl 4.1 requires opengl 4.1](https://playroider.com/wp-content/uploads/2018/02/opengl32-ros-fix-download.jpg)
To retrieve a debug log we should call function glGetDebugMessageLogARB.
![requires opengl 4.1 requires opengl 4.1](https://www.g-truc.net/post/0412.png)
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB | HGLRC tempContext = wglCreateContext(pDC->m_hDC) Int nPixelFormat = ChoosePixelFormat(pDC->m_hDC, &pfd) īOOL bResult = SetPixelFormat (pDC->m_hDC, nPixelFormat, &pfd) Pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW Pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR) Memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR)) Unsigned int* severities, int* lengths, char* messageLog) Įxtern PFNGLDEBUGMESSAGECONTROLARBPROC glDebugMessageControlARB Įxtern PFNGLDEBUGMESSAGEINSERTARBPROC glDebugMessageInsertARB Įxtern PFNGLDEBUGMESSAGECALLBACKARBPROC glDebugMessageCallbackARB Įxtern PFNGLGETDEBUGMESSAGELOGARBPROC glGetDebugMessageLogARB īool CGLRenderer::CreateGLContext(CDC* pDC) Unsigned int* sources, unsigned int* types, unsigned int* ids, Typedef unsigned int (APIENTRYP PFNGLGETDEBUGMESSAGELOGARBPROC) ( unsigned int count, int bufsize, Typedef void (APIENTRYP PFNGLDEBUGMESSAGECALLBACKARBPROC) (GLDEBUGPROCARB callback, Unsigned int severity, int length, const char* message, void* userParam)
![requires opengl 4.1 requires opengl 4.1](https://support.bluestacks.com/hc/article_attachments/360045792171/Open_GL_4.png)
Typedef void (APIENTRY *GLDEBUGPROCARB)( unsigned int source, unsigned int type, unsigned int id, Unsigned int id, unsigned int severity, int length, const char* buf) Typedef void (APIENTRYP PFNGLDEBUGMESSAGEINSERTARBPROC) ( unsigned int source, unsigned int type, Unsigned int severity, int count, const unsigned int* ids, bool enabled) Typedef void (APIENTRYP PFNGLDEBUGMESSAGECONTROLARBPROC) ( unsigned int source, unsigned int type, #define GL_DEBUG_SEVERITY_MEDIUM_ARB 0x9147 #define GL_DEBUG_SEVERITY_HIGH_ARB 0x9146 #define GL_DEBUG_TYPE_PERFORMANCE_ARB 0x8250 #define GL_DEBUG_TYPE_PORTABILITY_ARB 0x824F #define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB 0x824E #define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB 0x824D #define GL_DEBUG_SOURCE_APPLICATION_ARB 0x824A #define GL_DEBUG_SOURCE_THIRD_PARTY_ARB 0x8249 #define GL_DEBUG_SOURCE_SHADER_COMPILER_ARB 0x8248 #define GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB 0x8247 #define GL_DEBUG_CALLBACK_USER_PARAM_ARB 0x8245 #define GL_DEBUG_CALLBACK_FUNCTION_ARB 0x8244 #define GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_ARB 0x8243 #define GL_DEBUG_LOGGED_MESSAGES_ARB 0x9145 #define GL_MAX_DEBUG_LOGGED_MESSAGES_ARB 0x9144 #define GL_MAX_DEBUG_MESSAGE_LENGTH_ARB 0x9143 #define GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB 0x8242