dll entry point

Graphics and GPU Programming Programming OpenGL

Started by ignorator September 15, 2007 12:02 AM

4 comments, last by V-man 16 years, 7 months ago

122

Author

September 15, 2007 12:02 AM

hi... i'm trying to use a glsl shader with opengl.... when using glCreateShader() i get the following error: Unable to find an entry point named 'glCreateShader' in DLL 'opengl32.dll'. i have installed the newest gfx card driver which should be compatible to opengl2.1... any suggestions?

Sneftel

1,788

September 15, 2007 12:07 AM

read this.

ignorator

122

Author

September 15, 2007 12:19 AM

thx but i'm not trying to call this function through a arb extension.

the arb extension function would be:

GLhandleARB glCreateShaderObjectARB(GLenum shaderType);

but i'm trying to call the opengl 2.0 function:

GLuint glCreateShader(GLenum shaderType);

Yann L

1,806

September 15, 2007 12:32 AM

Quote:Original post by ignorator
thx but i'm not trying to call this function through a arb extension.

the arb extension function would be:

GLhandleARB glCreateShaderObjectARB(GLenum shaderType);

but i'm trying to call the opengl 2.0 function:

GLuint glCreateShader(GLenum shaderType);

You can't. Not under Windows. Read the article Sneftel posted.

ignorator

122

Author

September 15, 2007 12:35 AM

oh ok. sry.

V-man

813

September 15, 2007 07:13 AM

Well, you can use glCreateShader and other GL 2.0 functions, but you need to get functions pointers or use something like glew.
This is a shorter read
Getting Started

Sig: http://glhlib.sourceforge.net
an open source GLU replacement library. Much more modern than GLU.
float matrix[16], inverse_matrix[16];
glhLoadIdentityf2(matrix);
glhTranslatef2(matrix, 0.0, 0.0, 5.0);
glhRotateAboutXf2(matrix, angleInRadians);
glhScalef2(matrix, 1.0, 1.0, -1.0);
glhQuickInvertMatrixf2(matrix, inverse_matrix);
glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);

dll entry point

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