i was trying :
JNIEXPORT void JNICALL Java_net_javajeff_jtwain_JTwain_setFrames
(JNIEnv * env, jclass clazz, jfloat left, jfloat top, jfloat right, jfloat bottom)
{
// Set the current value of the ICAP_FRAMES capability.
//pTW_CAPABILITY cap = (pTW_CAPABILITY)GlobalAlloc(GHND,(sizeof(TW_CAPABILITY)));
TW_CAPABILITY cap;
cap.Cap = ICAP_FRAMES;
cap.ConType = TWTY_FRAME;
pTW_FRAME pFrame = (pTW_FRAME)GlobalAlloc(GHND,(sizeof(TW_FRAME)));
pFrame->Left = FloatToFIX32(left);
pFrame->Top = FloatToFIX32(top);
pFrame->Right = FloatToFIX32(right);
pFrame->Bottom = FloatToFIX32(bottom);
// Application must allocate memory for the capability container.
cap.hContainer = GlobalAlloc(GHND,(sizeof(TW_ONEVALUE)));//+sizeof(TW_FRAME)));
if (cap.hContainer == 0)
{
throwJTE (env, "Insufficient memory (setFrames)");
return;
}
printf("OHHH\n");
// Lock memory handle so that container's fields can be populated.
TW_ONEVALUE * pTWOneValue = (TW_ONEVALUE *) GlobalLock (cap.hContainer);
// Populate container with appropriate data type and Physical Width
pTWOneValue->ItemType = TWTY_FRAME;
pTWOneValue->Item = *((pTW_UINT32) pFrame);
// Unlock memory handle.
GlobalUnlock(cap.hContainer);
g_rc = (*g_pDSM_Entry) (&g_AppID,
&g_SrcID,
DG_CONTROL,
DAT_CAPABILITY,
MSG_SET,
(TW_MEMREF) &cap);
printf("OHHH\n");
// If new current value could not be set, throw an appropriate exception.
if (g_rc != TWRC_SUCCESS)
{
// Determine if new current value could not be set because capability
// is not supported.
TW_STATUS status;
int rc = (*g_pDSM_Entry) (&g_AppID,
&g_SrcID,
DG_CONTROL,
DAT_STATUS,
MSG_GET,
(TW_MEMREF) &status);
// Throw appropriate exception.
if (rc == TWRC_SUCCESS && status.ConditionCode == TWCC_BADCAP)
throwUC (env, "ICAP_FRAMES");
else
throwJTE (env, "Unable to set capability (setFrames)");
}
// Application is responsible for freeing any memory that it allocates. The
// data source is not responsible for this task.
GlobalFree(pFrame);
GlobalFree(cap.hContainer);
// GlobalFree(cap);
printf("OHHH\n");
}
and other variations with no success...
if you have another idea... it will be welcome as usual!
Best Regards! |
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