Creating an Error Callback Function
The following example is a simple error callback function. Register this
callback by using the
capSetCallbackOnError macro.
// ErrorCallbackProc: error callback function
// hWnd: capture window handle
// nErrID: error code for the encountered error
// lpErrorText: error text string for the encountered error
//
LRESULT PASCAL ErrorCallbackProc(HWND hWnd, int nErrID,
LPSTR lpErrorText)
{
if (!ghWndMain)
return FALSE;
if (nErrID == 0) // Starting a new major function.
return TRUE; // Clear out old errors.
// Show the error identifier and text.
wsprintf(gachBuffer, "Error# %d", nErrID);
MessageBox(hWnd, lpErrorText, gachBuffer,
MB_OK | MB_ICONEXCLAMATION);
return (LRESULT) TRUE;
}
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