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- Constants defining the messages
SendMessage (Function) In french: SendMessage Sends a Windows message to a control or to a window. This message is sent directly: as long as the message has not been processed, current processing is stopped (blocking function).. PostMessage is used to send a message without locking the application. Remark: This function is a call to the Windows API SendMessage. It is used to perform low-level tasks on controls and windows. To find out the meaning of each message (and parameters), you must refer to the Windows API (WIN32). Caution: Inappropriate use of this function can lead to serious problems in your application and/or GUI malfunctions.
SendMessage(Handle(SAI_SAISIE1), WM_COPY, 0, 0)
SendMessage(Handle(BTN_BOUTON1), WM_CONTEXTMENU, Handle(BTN_BOUTON1), -1)
Syntax
<Result> = SendMessage(<hWnd> , <Windows message> , <wParam> , <lParam>)
<Result>: Integer The meaning of this parameter depends on the message sent. <hWnd>: Integer Handle of the control or window to which the message must be sent. This control or this window can be objects that do not belong to a WINDEV application. The handle of a control or window can be calculated by Handle (for the WINDEV objects) or by SysWinHandle. <Windows message>: Integer or character string Number or name of the Windows message to send. If a character string is used, the RegisterWindowsMessage function is automatically called to obtain the corresponding message number.. If this parameter corresponds to a character string, this string is case-sensitive. <wParam>: Integer Parameter whose use depends on the type of message sent. <lParam>: Integer Parameter whose use depends on the type of message sent. Remarks Constants defining the messages The constants that define the possible messages are defined in the "WINCONST.WL" file available in the WINDEV directory (Personal\External subdirectory). To use this file in your applications, use the following code: EXTERN "WINCONST.wl"
SendMessage(Handle(SAI_SAISIE1), WM_MOUSEMOVE, 0, 0)
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