I have generated a .pdb file
(using pdbc compiler
http://www.obermuhlner.com/public/Projects/Palm/PDBC/index.html )
with the records as follow:
record
begin
includebin "abc.txt"
end;
The file structure of the binary text file is like this:
(minX)(minY)(noOfCoordinate)(x1)(y1)(x2)(y2)......(noOfCoordinate)(x1)(y1)(x
2)(y2)......(0)
where minX, minY are double values (8bytes)
noOfCoordinate, x, y are short values(2bytes)
0 is used to indicated the end
noOfCoordinate is used to define how many x, y pairs follow
eg, if noOfCoordinate = 3 then there are 3 groups of x, y values,
i.e. (noOfCoordinate)(x1)(y1)(x2)(y2)(x3)(y3)
the problem is in every record, the number of the group
[(noOfCoordinate)(x1)(y1)(x2)(y2)......] is different, and I make a typedef
struct as follow:
typedef struct {
double minX;
double minY;
Int16 noOfCoordinate;
Int16 *arrayX;
Int16 *arrayY;
} Path;
I try to get the values in the record using the codes below
but I cannot get the values in the record, I have spend quite a lot of time
but I still don't know where is the problem, can anyone tell me how to get
the values in the record? thx!
static readFunction()
{
Path path;
MemHandle recordH;
UInt16 i = 0;
recordH = DmQueryRecord(gDB, 0); //Read the 1st record
// Try to get the values in the record
gMinX = path.minX;
gMinY = path.minY;
numCoord = path.noOfCoordinate;
while (numCoord != 0) {
for (i=0; i<numCoord; i++) {
arrX[i] = path.arrayX[i];
arrY[i] = path.arrayY[i];
} //End of for loop
numCoord = path.noOfCoordinate;
} // End of while loop
MemHandleUnlock(recordH);
}
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