| Microsoft DirectX 8.1 (C++) |
The CImageDisplay class initializes itself with a display format so that other objects can query or reset the display type. It also provides member functions to check display formats and accept only those video formats that can be efficiently rendered by using GDI calls.
Protected Data Members
| m_Display | VIDEOINFO structure corresponding to the current device display type. |
Member Functions
| CheckBitFields | Checks that the bit fields on a VIDEOINFO structure are correct. |
| CheckHeaderValidity | Determines if a BITMAPINFOHEADER structure is valid. |
| CheckMediaType | Determines if the filter can support the media type proposed by the output pin. |
| CheckPaletteHeader | Determines if the palette on a VIDEOINFO structure is correct. |
| CheckVideoType | Compares a video type to determine if it is compatible with the current display mode. |
| CImageDisplay | Constructs a CImageDisplay object. |
| CountPrefixBits | Counts the number of prefix bits. |
| CountSetBits | Counts the total number of bits set in a field. |
| GetBitMasks | Retrieves a set of color element bitmasks for the supplied VIDEOINFO structure. |
| GetColourMask | Retrieves a set of individual color element masks. |
| GetDisplayDepth | Retrieves the bit depth of the current display mode. |
| GetDisplayFormat | Retrieves a VIDEOINFO structure representing the current display mode. |
| IsPalettized | Determines if the display uses a palette. |
| RefreshDisplayType | Updates the CImageDisplay object with the current display type. |
| UpdateFormat | Updates the VIDEOINFO structure to remove implicit assumptions. |