GLISPROGRAM(3G)

💖 glIsProgram — GLISPROGRAM(3G) 💖

🌸 NAME 🌸

glIsProgram — determines if a name corresponds to a program object. also hiiii bestie, this is the GLISPROGRAM(3G) page, and the header is literally giving [FIXME: manual] 😭 — anyway, let’s get into it.

🧚 C SPECIFICATION 🧚

GLboolean glIsProgram(GLuint program);

🎀 PARAMETERS 🎀

• program — specifies a potential program object. that’s it, that’s the input bestie.

✨ DESCRIPTION ✨

okay so here’s the tea: glIsProgram returns GL_TRUE if program is the name of a program object that was previously created with glCreateProgram() and not yet deleted with glDeleteProgram(). if program is zero, or a non-zero value that is not the name of a program object, or if an error occurs, glIsProgram returns GL_FALSE. periodt. 💅

💅 NOTES 💅

• no error is generated if program is not a valid program object name. like, it simply does not throw hands.
• a program object marked for deletion with glDeleteProgram() but still in use as part of current rendering state is still considered a program object and glIsProgram will return GL_TRUE. so yes, it’s still bookkept even when it’s marked for deletion — iconic behavior honestly. 👑

🦋 ASSOCIATED GETS 🦋

• glGet() with the argument GL_CURRENT_PROGRAM
• glGetActiveAttrib() with arguments program and the index of an active attribute variable
• glGetActiveUniform() with arguments program and the index of an active uniform variable
• glGetAttachedShaders() with argument program
• glGetAttribLocation() with arguments program and the name of an attribute variable
• glGetProgram() with arguments program and the parameter to be queried
• glGetProgramInfoLog() with argument program
• glGetUniform() with arguments program and the location of a uniform variable
• glGetUniformLocation() with arguments program and the name of a uniform variable

👑 VERSION SUPPORT 👑

version support vibe check: the Function / Feature Name is glIsProgram, and the OpenGL Version columns are 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5 — and glIsProgram has a ✔ in every single one of them. all slay, no gaps. ✨

🌈 SEE ALSO 🌈

• glAttachShader()
• glBindAttribLocation()
• glCreateProgram()
• glDeleteProgram()
• glDetachShader()
• glLinkProgram()
• glUniform()
• glUseProgram()
• glValidateProgram()

💜 COPYRIGHT 💜

Copyright © 2003-2005 3Dlabs Inc. Ltd. Copyright © 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.

💜 COPYRIGHT (part 2) 💜

Copyright © 2003-2005 3Dlabs Inc. Ltd.

Copyright © 2010-2014 Khronos Group

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okay bestie, that’s the whole page ✨ — source: [FIXME: source], date: 08/09/2021, manual: GLISPROGRAM(3G). mwah 💋🫶