The following line from your latest source code is problematic:
pTW_FRAME pFrame = (pTW_FRAME)GlobalAlloc(GHND,(sizeof(TW_FRAME)));
GlobalAlloc() returns a handle. You must call GlobalLock() to lock the memory identified by the handle before you can assign its address to pFrame. The correct code appears below:
HANDLE handle = GlobalAlloc (GHND, sizeof(TW_FRAME));
if (handle == 0)
{
throwJTE (env, "Insufficient Memory (setFrames");
return;
}
pTW_FRAME pFrame = (pTW_FRAME) GlobalLock (handle);
pFrame->Left = FloatToFix32 (left);
pFrame->Top = FloatToFix32 (top);
pFrame->Right = FloatToFix32 (right);
pFrame->Bottom = FloatToFix32 (bottom);
GlobalUnlock (handle);
Even after making the change, my implementation of setFrames() is still throwing an exception. It could be that none of my data sources support ICAP_FRAMES. However, it might be something else.
I recommend making the change above and trying again. Let me know what happens.
In the meantime, I will study the code and see if I can spot any other reason for the problem.
Jeff |
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