hab (HAB) - input

Handle to anchor block.

attriblist (int *) - input

A list of attribute/value pairs. The last attribute in the list must be None.

The following is a list of valid attributes:

PGL_BUFFER_SIZE

Must be followed by a nonnegative integer that indicates the desired color index buffer size. The smallest index buffer of at least the specified size is preferred. Ignored if PGL_RGBA is asserted.
PGL_LEVEL
Must be followed by an integer buffer-level specification. This specification is honored exactly. Buffer level zero corresponds to the default frame buffer of the display. Buffer level one is the first overlay frame buffer, level two the second overlay frame buffer, and so on. Negative buffer levels correspond to underlay frame buffers.
PGL_RGBA
If present, only RGBA visual configs are considered. Otherwise, Color Index visual configs are considered.
PGL_DOUBLEBUFFER
If present, only double bufferered visual configs are considered. Otherwise both single buffered and double buffered visual configs may be considered.
PGL_SINGLEBUFFER
If present, only single buffered visual configs are considered. Otherwise both single buffered and double buffered visual config may be considered.
PGL_STEREO
If present, only stereo visual configs are considered. Otherwise, both monoscopic and stereoscopic visual configs are considered.
PGL_AUX_BUFFERS
Must be followed by a nonnegative integer that indicates the desired number of auxiliary buffers. Visual configs with the smallest number of auxiliary buffers that meets or exceeds the specified number are preferred.
PGL_RED_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, the smallest available red buffer is preferred. Otherwise, the largest available red buffer of at least the minimum size is preferred.
PGL_GREEN_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, the smallest available green buffer is preferred. Otherwise, the largest available green buffer of at least the minimum size is preferred.
PGL_BLUE_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, the smallest available blue buffer is preferred. Otherwise, the largest available blue buffer of at least the minimum size is preferred.
PGL_ALPHA_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, the smallest available alpha buffer is preferred. Otherwise, the largest available alpha buffer of at least the minimum size is preferred.
PGL_DEPTH_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, visual configs with no depth buffer are preferred. Otherwise, the largest available depth buffer of at least the minimum size is preferred.
PGL_STENCIL_SIZE
Must be followed by a nonnegative integer that indicates the desired number of stencil bitplanes. The smallest stencil buffer of at least the specified size is preferred. If the desired value is zero, visual configs with no stencil buffer are preferred.
PGL_ACCUM_RED_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, visual configs with no red accumulation buffer are preferred. Otherwise, the largest possible red accumulation buffer of at least the minimum size is preferred.
PGL_ACCUM_GREEN_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, visual configs with no green accumulation buffer are preferred. Otherwise, the largest possible green accumulation buffer of at least the minimum size is preferred.
PGL_ACCUM_BLUE_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, visual configs with no blue accumulation buffer are preferred. Otherwise, the largest possible blue accumulation buffer of at least the minimum size is preferred.
PGL_ACCUM_ALPHA_SIZE
Must be followed by a nonnegative minimum size specification. If this value is zero, visual configs with no alpha accumulation buffer are preferred. Otherwise, the largest possible alpha accumulation buffer of at least the minimum size is preferred.

pVisualConfig (PVISUALCONFIG *) - returns

Pointer to a null-terminated array of pointers to VISUALCONFIG structures containing buffer configs. A NULL is returned if no suitable VisualConfig was found.

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