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WebGLContextEvent

*

20169

*

WebContextEvent WebGL API WebGL

Event

Event WebGLContextEvent

Event

WebGLContextEvent.statusMessage

Event

WEBGL_lose_context webglcontextlost webglcontextrestored

js
var canvas = document.getElementById("canvas");
var gl = canvas.getContext("webgl");

canvas.addEventListener(
  "webglcontextlost",
  function (e) {
    console.log(e);
  },
  false,
);

gl.getExtension("WEBGL_lose_context").loseContext();

//  "webglcontextlost"  WebGLContextEvent

WebGL Specification
# 5.15

MDN

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GitHub
  1. WebGLweb 2D 3D
  2. WebGLContextEvent
    1. WebGLContextEvent()
    1. statusMessage
    1. Event
  6. WebGL
    1. ANGLE_instanced_arrays
    2. EXT_blend_minmax
    3. EXT_color_buffer_half_float
    4. EXT_disjoint_timer_query
    5. EXT_frag_depth
    6. EXT_sRGB
    7. EXT_shader_texture_lod
    8. EXT_texture_filter_anisotropic
    9. OES_draw_buffers_indexed
    10. OES_element_index_uint
    11. OES_standard_derivatives
    12. OES_texture_float
    13. OES_texture_float_linear
    14. OES_texture_half_float
    15. OES_texture_half_float_linear
    16. OES_vertex_array_object
    17. WEBGL_color_buffer_float
    18. WEBGL_compressed_texture_etc1
    19. WEBGL_compressed_texture_pvrtc
    20. WEBGL_compressed_texture_s3tc
    21. WEBGL_compressed_texture_s3tc_srgb
    22. WEBGL_debug_renderer_info
    23. WEBGL_debug_shaders
    24. WEBGL_depth_texture
    25. WEBGL_draw_buffers
    26. WEBGL_lose_context
    27. WebGL2RenderingContext
    28. WebGLActiveInfo
    29. WebGLBuffer
    30. WebGLFramebuffer
    31. WebGLObject
    32. WebGLProgram
    33. WebGLQuery
    34. WebGLRenderbuffer
    35. WebGLRenderingContext
    36. WebGLSampler
    37. WebGLShader
    38. WebGLShaderPrecisionFormat
    39. WebGLSync
    40. WebGLTexture
    41. WebGLTransformFeedback
    42. WebGLUniformLocation
    43. WebGLVertexArrayObject
    1. WebGL
    2. WebGL types
    3. WebGL model view projection
    4. WebGL best practices
    5. WebGL
    6. 2D WebGL
    7. Compressed texture formats
    8. Data in WebGL
    9. Matrix math for the web
    10. WebGL
    1. WebGL
    2. WebGL
    3. WebGL 2D
    4. WebGL
    5. WebGL
    6. WebGL 3D
    7. WebGL
    8. Lighting in WebGL
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