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bool CButtonSetup::ToolFkt(UINT id, NMHDR *pTTTStruct, LRESULT *pResult) { TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pTTTStruct; UINT nID =pTTTStruct->idFrom; if (pTTT->uFlags & TTF_IDISHWND) { // idFrom is actually the HWND of the tool nID = ::GetDlgCtrlID((HWND)nID); ... nID allways returns zero on CVI-Buttons. Standart Buttons working...
This is happening because CVI controls that are on CVI panels do not have HWNDs associated with them. You can verify this with SPY++ - there's an HWND for the top-level panel window but the rest of the child windows are drawn within the panel's window rather than a window of their own.
CVI does have a function for adding tooltips to CVI controls in the CVI programmer's toolbox. This can be found in your CVI installation directory under toolslib\toolbox\toolbox.fp. One of the functions under User Interface Utilities is SetCtrlToolTipAttribute, which I think will do what you're looking for.
