Examples: GLFW+OpenGL3: Fixed Shutdown() calling GL functions with NULL parameters if NewFrame was never called (#800)

ago%!(EXTRA string=9 years) · 2919c77bee
parent b96471143f
commit 2919c77bee
1 changed files with 5 additions and 5 deletions
--- a/examples/opengl3_example/imgui_impl_glfw_gl3.cpp
+++ b/examples/opengl3_example/imgui_impl_glfw_gl3.cpp
@ -282,15 +282,15 @@ void    ImGui_ImplGlfwGL3_InvalidateDeviceObjects()
    if (g_ElementsHandle) glDeleteBuffers(1, &g_ElementsHandle);
    g_VaoHandle = g_VboHandle = g_ElementsHandle = 0;

-    glDetachShader(g_ShaderHandle, g_VertHandle);
-    glDeleteShader(g_VertHandle);
+    if (g_ShaderHandle && g_VertHandle) glDetachShader(g_ShaderHandle, g_VertHandle);
+    if (g_VertHandle) glDeleteShader(g_VertHandle);
    g_VertHandle = 0;

-    glDetachShader(g_ShaderHandle, g_FragHandle);
-    glDeleteShader(g_FragHandle);
+    if (g_ShaderHandle && g_FragHandle) glDetachShader(g_ShaderHandle, g_FragHandle);
+    if (g_FragHandle) glDeleteShader(g_FragHandle);
    g_FragHandle = 0;

-    glDeleteProgram(g_ShaderHandle);
+    if (g_ShaderHandle) glDeleteProgram(g_ShaderHandle);
    g_ShaderHandle = 0;

    if (g_FontTexture)