REFERENCE GUIDE

This code specifies that the edit control cannot allocate additional memoryspace. The control's parent window receives this code through aWM_ COMMAND message from the control.Parameters wParam Contains the wParam parameter of the WM_ COMMANDmessage, and specifies the control ID.IParamContains an edit-control window handle in its low-order wordand the EN_ERRSP ACE code in its high-order word.EN HSCROLLThis code specifies that the user has clicked the edit control's horizontalscroll bar. The control's parent window receives this code through aWM_ COMMAND message from the control. The parent window isnotified before the screen is updated.Parameters wParam Contains the wParam parameter of the WM_ COMMANDmessage, and specifies the control ID.IParamContains an edit-control window handle in its low-order wordand the EN_HSCROLL code in its high-order word.EN_KI LLFOCUSThis code specifies that the edit control has lost the input focus. Thecontrol's parent window receives this code through a WM_ COMMANDmessage from the control.Parameters wParam Contains the wParam parameter of the WM_ COMMANDmessage, and specifies the control ID.IParamContains an edit-control window handle in its low-order wordand the EN_KILLFOCUS code in its high-order word.Chapter 6, Messages directory 625