I have two questions. 1 - How can I generate screenshots in an opengl windowed application? 2 - How can I use these screenshots and combine them into a movie file?

1 - Use glReadPixels().

2 - Save the files with a number after their name, i.e. ScreenShot00001.bmp, then open the files in numeric order in Adobe Premiere and convert all the image-files to an AVI.

Ok, that set me in the right direction, but in the function:
glBitmap
the final parameter is a pointer to a bitmap image. How is a bitmap pointer obtained?

I''m quite new to this (creating bitmaps), do you have any source code that does that?

Ok, I figures out how to make TARGA files (it was fairly easy), but I''m unclear of how to copy buffer data into the file itself.
I''ve tested dozens of combinations for what I have below as "???" but my targa images all appear completely black. What should these values be if I want to copy RGB data to the file?
OR are there more steps involved?
tga = fopen( str, "wb" );

WriteTargaHeader( header, tga );
/*
glReadPixels(
0,
0,
IMAGESIZE,// w
IMAGESIZE,// h
???,
???,
???);
*/
fclose( tga );

Well, I believe I''m nearing the answer. The end result of this is generating TARGA files that aren''t right. It generates a highly distorted image which could be just garbage because I''m doing something wrong, or its the right image, just severly skewed. Here''s what I got:

bool CApplication::GenerateScreenShot()
{
Log( "CApplication::GenerateScreenShot()\n" );

const int IMAGESIZE = 500;
char str[256];

sprintf( str, "ScreenShot%d.tga", m_iCurrentScreenShot );
m_iCurrentScreenShot++;

FILE *tga;
unsigned char *Buffer = new unsigned char[IMAGESIZE * IMAGESIZE * 3];

TARGAHEADER header;

/* First, set all the fields in the header to appropriate values */
header.id_len = 0; /* no ID field */
header.map_type = 0; /* no colormap */
header.img_type = 2; /* trust me */
header.map_first = 0; /* not used */
header.map_len = 0; /* not used */
header.map_entry_size = 0; /* not used */
header.x = 0; /* image starts at (0,0) */
header.y = 0;
header.width = IMAGESIZE; /* image is 200 x 100 */
header.height = IMAGESIZE;
header.bpp = 16; /* 24 bits per pixel */
header.misc = 0x20; /* scan from upper left corner */

tga = fopen( str, "wb" );
// Writes the header for the file
WriteTargaHeader( header, tga );

glReadPixels(
0,
0,
IMAGESIZE,// w
IMAGESIZE,// h
GL_RGB,
GL_UNSIGNED_BYTE,
Buffer );

fwrite( Buffer, sizeof( unsigned char ), IMAGESIZE * IMAGESIZE * 3, tga );

fclose( tga );

delete Buffer;
return true;
}

I''m all out of rational ideas....