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MGL_loadJPEGIntoDCExt
Loads a JPEG file directly into an existing device context using an open file.
Declaration
ibool MGLAPI MGL_loadJPEGIntoDCExt(
MGLDC *dc,
FILE *f,
ulong dwOffset,
ulong dwSize,
int dstLeft,
int dstTop,
int num8BitColors)
Prototype In
mgraph.h
Parameters
dc |
Device context to load bitmap into |
f |
Open binary file to read bitmap from |
dwOffset |
Offset to start of JPEG file within open file |
dwSize |
Size of JPEG file in bytes |
dstLeft |
Left coordinate to load JPEG at |
dstTop |
Top coordinate to load JPEG at |
num8BitColors |
Number of colors for 8-bit image, 0 for RGB images, -1 for grayscale |
Return Value
Pointer to the loaded JPEG file, NULL on error.
Description
This function is the same as MGL_loadJPEGIntoDC, however it loads the file from a previously open file. This allows you to create your own large files with multiple files embedded in them.
See Also
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