MT_DecodeHandle_PostReleaseMsg

Datalogic .NET SDK

PostReleaseMsg (Method)

Syntax

public bool PostReleaseMsg(MessageWindow wnd, uint uDataMsg);

Class : DecodeHandle

Namespace : Datalogic.API

Assembly : Datalogic.API.DLL

Description

Posts a request to be notified when the trigger button is released.

Parameters Table

	Type	Parameter	Description
[in]	MessageWindow	wnd	A reference to an instance of the Microsoft.WindowsCE.Forms.MessageWindow class whose window procedure (WinProc) is to receive a message when the trigger button is released.
[in]	uint	uDataMsg	Specifies the message to be posted when the scan attempt is started. This should be a value of WM_USER (defined in winuser.h) or higher.

[return]	bool		A value of TRUE is returned on success, otherwise FALSE is returned to indicate failure.
[on error]	FALSE

Example

private void btnSetReleaseMsg_Click(object sender, EventArgs e)

{

// hDcd = new DecodeHandle(...); Global instance of DecodeHandle class

bool bPostSuccess = hDcd.PostReleaseMsg(wndMsg, Constants.WM_RELEASESCAN);

MySetTextBox("Set-PostReleaseMsg");

}

Remarks

For each device, only one event or message can be in effect at any time.

For example, if a press event (Datalogic.API.DecodeEvent.ScanPress) is in use, then you need to stop listening to the event (Datalogic.API.DecodeEvent.StopScanListener), or cancel the notification before a message can be used.

If a previous message is posted, then you need to cancel the press notification to post the new start windows message.