WindowProc

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This function is an application-defined callback function that processes messages sent to a window.

LRESULT
CALLBACK
WindowProc( HWND
hwnd
, UINT
uMsg
, WPARAM
wParam
, LPARAM
lParam 
)
;

Parameters

hwnd

[in] Handle to the window.

uMsg

[in] Specifies the message.

wParam

[in] Specifies additional message information. The contents of this parameter depend on the value of the uMsgparameter.

lParam

[in] Specifies additional message information. The contents of this parameter depend on the value of the uMsgparameter.

Return Values

The return value is the result of the message processing and depends on the message sent.

Requirements

Runs on	Versions	Defined in	Include	Link to
Windows CE OS	1.0 and later	Winuser.h

Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.