zxb

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About zxb

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  1. I found another solution that dont need render on memory bitmap. Thanks.
  2. In Windows system, Texture show ok when render on window dc, but Texture not showed when render on memory bitmap? I need generate a memory bitmap for ::UpdateLayerWindow, with WS_EX_LAYERED syte window. Thank you!   HDC hDC = ::GetDC(m_hWnd); #if 0 // Texture show ok. if(SetWindowPixelFormat(hDC)==FALSE) { return 0; } if(CreateViewGLContext(hDC)==FALSE) { return 0; } //::ReleaseDC(m_hWnd, hDC); #else // Texture not showed. m_hDCMem = ::CreateCompatibleDC(hDC); CRect rcWnd; GetWindowRect(&rcWnd); LPBYTE pbits = NULL; m_hbmpMem = CreateDIBSection(rcWnd.Width(), rcWnd.Height(), 32, (LPVOID *)&pbits); HGDIOBJ hbmpOld = ::SelectObject(m_hDCMem, m_hbmpMem); if(SetWindowPixelFormat(m_hDCMem)==FALSE) { return 0; } if(CreateViewGLContext(m_hDCMem)==FALSE) { return 0; } ::ReleaseDC(m_hWnd, hDC); #endif ... // some paint code glBindTexture(GL_TEXTURE_2D, texName); glBegin(GL_POLYGON); //glColor4f(1.0f,0.0f,0.0f,1.0f); glTexCoord2f(0.0, 0.0); glVertex3f(-8.0f,-8.0f, 0.0); //glColor4f(0.0f,0.0f,1.0f,1.0f); glTexCoord2f(1.0, 0.0); glVertex3f(8.0f,-8.0f,0.0); //glColor4f(0.0f,1.0f,0.0f,1.0f); glTexCoord2f(1.0, 1.0); glVertex3f(8.0f,8.0f, 0.0); //glColor4f(0.0f,0.0f,1.0f,1.0f); glTexCoord2f(0.0, 1.0); glVertex3f(-8.0f,8.0f,0.0); glEnd();