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GA_colorCursorRGB

Declaration

typedef struct {
N_uint8 ColorData[12288];
N_uint8 ANDMask[512];
N_uint32 HotX;
N_uint32 HotY;
} GA_colorCursorRGB

Prototype In

snap/graphics.h

Description

Hardware 24-bit cursor structure. This structure defines a color hardware cursor that is downloaded to the hardware. The cursor is defined as a 64x64 image with an AND mask and color data. The definition of the AND mask, cursor data and the pixels that will appear on the screen is as follows:

AND Color Result
0 0 Transparent (color from screen memory)
0 not 0 Invert (complement of color from screen memory)
1 xx Cursor color data

Hence if the AND mask is a zero the color data should be either 00 to make the pixel transparent or not 0 to make it the inversion of the screen pixel.

The color data is passed down to the driver as 24-bit packed RGB color values. It is up to the calling application to translate cursor images of lower color depths to the format supported by the hardware.

The HotX and HotY members define the hot spot for the cursor, which is the location where the logical mouse pointer is located in the cursor image. When you click the mouse, the pixel under the hot-spot is the pixel selected.

Members

ColorData | Cursor color data as a 64x64 array of packed 24-bit RGB pixels
ANDMask | Cursor AND mask
HotX | Cursor X coordinate hot spot
HotY | Cursor Y coordinate hot spot

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