quote:

---

nSize Specifies the size of the PIXELFORMATDESCRIPTOR data structure. Set this member to sizeof(PIXELFORMATDESCRIPTOR).

nVersion Specifies the version number of the PIXELFORMATDESCRIPTOR data structure. Set this member to 1.

dwFlags A set of bit flags that specify properties of the pixel buffer. You can combine the following bit flag constants by using bitwise-OR.
If any of the following flags are set, the ChoosePixelFormat function attempts to match pixel formats that also have that flag or flags set. Otherwise, ChoosePixelFormat ignores that flag in the pixel formats:
PFD_DRAW_TO_WINDOW
PFD_DRAW_TO_BITMAP
PFD_SUPPORT_GDI
PFD_SUPPORT_OPENGL
If any of the following flags are set, ChoosePixelFormat attempts to match pixel formats that also have that flag or flags set. Otherwise, it attempts to match pixel formats without that flag set:

PFD_DOUBLEBUFFER
PFD_STEREO
If the following flag is set, the function ignores the PFD_DOUBLEBUFFER flag in the pixel formats:
PFD_DOUBLEBUFFER_DONTCARE
If the following flag is set, the function ignores the PFD_STEREO flag in the pixel formats:
PFD_STEREO_DONTCARE

iPixelType Specifies the type of pixel format for the function to consider:
PFD_TYPE_RGBA
PFD_TYPE_COLORINDEX

cColorBits Zero or greater.

cRedBits Not used.

cRedShift Not used.

cGreenBits Not used.

cGreenShift Not used.

cBlueBits Not used.

cBlueShift Not used.

cAlphaBits Zero or greater.

cAlphaShift Not used.

cAccumBits Zero or greater.

cAccumRedBits Not used.

cAccumGreenBits Not used.

cAccumBlueBits Not used.

cAccumAlphaBits Not used.

cDepthBits Zero or greater.

cStencilBits Zero or greater.

cAuxBuffers Zero or greater.

iLayerType Specifies one of the following layer type values:
PFD_MAIN_PLANE
PFD_OVERLAY_PLANE
PFD_UNDERLAY_PLANE

bReserved Not used.

dwLayerMask Not used.

dwVisibleMask Not used.

dwDamageMask Not used.

---